Written and fact-checked by Aadil Saif. Arithmetic independently re-verified · Last updated September 2026
Part of the India Land Unit Converter series.
The conversion is one exact number. The research went to the statute book instead, and found three things worth a page: a live Reserve Bank rule that decides what a torn banknote is worth by measuring it in square centimetres; a charging rule from 1951 that makes a fraction of one round up in exactly the same direction; and the fact that when Indian law does legislate about which unit to express a small area in, the unit it names is not this one but the square decimetre, a hundred times larger and almost never used. Two state rules print square-centimetre figures that cannot mean what they say, and the page sets out the arithmetic and declines to explain it.
1 square centimetre = 0.0001 square metres exactly. 10,000 of them make a square metre; 6.4516 of them make a square inch; 929.0304 make a square foot.
| One square centimetre, in | Amount | Terminates? |
|---|---|---|
| Square metres | 0.0001 | yes |
| Square millimetres | 100 | yes |
| Ares | 0.000001 | yes |
| Hectares | 0.00000001 | yes |
| Square inches | 0.1550003100006… | no |
| Square feet | 0.0010763910416… | no |
| Square yards | 0.0001195990046… | no |
| Square Centimeter | Square Meter | Square Feet | Square Inch | Square Yard | Acre |
|---|---|---|---|---|---|
| 1 | 0.0001 | 0.001076 | 0.155 | 0.000120 | 0.0000000247 |
| 2 | 0.0002 | 0.002153 | 0.310001 | 0.000239 | 0.0000000494 |
| 3 | 0.0003 | 0.003229 | 0.465001 | 0.000359 | 0.0000000741 |
| 5 | 0.0005 | 0.005382 | 0.775002 | 0.000598 | 0.000000124 |
| 10 | 0.001 | 0.010764 | 1.550003 | 0.001196 | 0.000000247 |
| 20 | 0.002 | 0.021528 | 3.100006 | 0.002392 | 0.000000494 |
| 50 | 0.005 | 0.05382 | 7.750016 | 0.00598 | 0.00000124 |
| 100 | 0.01 | 0.107639 | 15.500031 | 0.01196 | 0.00000247 |
| 200 | 0.02 | 0.215278 | 31.000062 | 0.02392 | 0.00000494 |
| 500 | 0.05 | 0.538196 | 77.500155 | 0.0598 | 0.0000124 |
| 1,000 | 0.1 | 1.076391 | 155.00031 | 0.119599 | 0.0000247 |
Only four of the thirty-two other units in this series convert exactly out of a square centimetre, and all four are metric. But every single one of the thirty-two converts exactly into it: 6.4516 to the square inch, 929.0304 to the square foot, 8,361.2736 to the square yard, 40,468,564.224 to the acre.
That direction rule is not this page's discovery (it was established for metric units generally with the hectare, and the mechanism is stated with the square kilometre), so this page cites both and does not re-derive it. What is worth adding is only the consequence at this scale: an acre is 40,468,564.224 square centimetres, exactly and uselessly.
Three things the table does not say.
No Indian land record is written in this unit, and it barely reaches the courts. Counting both spellings, the square centimetre appears in 2 Supreme Court documents against 306 for the square metre, a ratio of 153 to one. A record field kept to whole square metres carries 10,000 square centimetres of granularity, so this unit sits four orders of magnitude below the smallest difference an Indian land record can express.
Where it does live is small regulated objects, and there it is usually a quantity, not a rate. Fifty-five Indian statutory documents contain the phrase, documents, not instruments, for the reason set out below; 24 of them, 43.6%, are "per square centimetre." The comparable figure for the square inch is 71.6%. The square inch divides; the square centimetre measures, a label, a lamp, a chimney, a banknote.
And where Indian law does prescribe a unit for a small area, it is not this one. Rule 13 of the Legal Metrology (Packaged Commodities) Rules 2011, a rule about what a retail package label must say, provides that for a quantity below one square metre "the unit of area shall be the square decimetre", which is a hundred square centimetres. The square decimetre appears in seven documents in the whole statutory corpus, four of them that rule and its 1977 predecessor, two index rows each, which is how the database carries a rule and its parent instrument.
Convert The answer, first · To square feet, metres and inches · The small units
Understand The Reserve Bank's banknote rule · The same round-up in 1951 · The square decimetre · Two rules whose figures do not work · Two rules with an imperial number beside them · Where the unit is, and is not · Three mistakes
Check Searching for this unit · FAQ · Sources and method
Convert to a specific unit: Acre · Ankanam · Ares · Bigha · Biswa · Biswa Kacha · Cent · Chatak · Decimal · Dhur · Dismil · Gaj · Gajam · Ground · Guntha · Hectare · Kanal · Katha · Killa · Lessa · Marla · Murabba · Nali · Perch · Pura · Square Feet · Square Inch · Square Karam · Square Kilometer · Square Meter · Square Mile · Square Yard
Every one of the other thirty-two units has a section on this page. Where two units are the same area their table would be identical, so the second section points at the first rather than repeating it.
Every factor is a square centimetre's own size, 0.001076 square feet, divided by the target unit's. To check any row by hand, take that number, divide, and compare.
Each one comes from a single anchor, the acre at 43,560 square feet, by exact fraction arithmetic. Where a factor recurs, the formula gives the fraction rather than a rounded decimal, because a rounded factor is a wrong instruction rather than an approximate one: the fraction is what has to be carried wherever the arithmetic must close.
| Conversion | Formula | Status |
|---|---|---|
| Square Centimeter to Acre | Square Centimeter ÷ 40,468,564.224 | Recurring |
| Square Centimeter to Ankanam | Square Centimeter ÷ 66,890.1888 | Recurring · Ankanam is regional. This row is the Standard; also 0.0000299 |
| Square Centimeter to Ares | Square Centimeter × 0.000001 | Exact |
| Square Centimeter to Bigha | Square Centimeter ÷ 25,292,852.64 | Recurring · Bigha is regional. This row is the UP pucca / Bihar / Rajasthan pucca; also 0.000000119, 0.000000158, 0.0000000618 and 5 more |
| Square Centimeter to Biswa | Square Centimeter ÷ 1,264,642.632 | Recurring · Biswa is regional. This row is the UP / Rajasthan pucca; also 0.00000124, 0.00000237, 0.00000247 |
| Square Centimeter to Biswa Kacha | Square Centimeter ÷ 421,547.544 | Recurring · Biswa Kacha is regional. This row is the Punjab / Haryana revenue; also 0.00000124 |
| Square Centimeter to Cent | Square Centimeter ÷ 404,685.64224 | Recurring |
| Square Centimeter to Chatak | Square Centimeter ÷ 41,806.368 | Recurring |
| Square Centimeter to Decimal | Square Centimeter ÷ 404,685.64224 | Recurring |
| Square Centimeter to Dhur | Square Centimeter ÷ 63,232.1316 | Recurring · Dhur is regional. This row is the Bihar / Jharkhand (Patna chain); also 0.000299 |
| Square Centimeter to Dismil | Square Centimeter ÷ 404,685.64224 | Recurring |
| Square Centimeter to Gaj | Square Centimeter ÷ 8,361.2736 | Recurring |
| Square Centimeter to Gajam | Square Centimeter ÷ 8,361.2736 | Recurring |
| Square Centimeter to Ground | Square Centimeter ÷ 2,229,672.96 | Recurring |
| Square Centimeter to Guntha | Square Centimeter ÷ 1,011,714.1056 | Recurring |
| Square Centimeter to Hectare | Square Centimeter × 0.00000001 | Exact |
| Square Centimeter to Kanal | Square Centimeter ÷ 5,058,570.528 | Recurring · Kanal is regional. This row is the Standard (66-inch karam); also 0.000000239, 0.000000260, 0.000000295 |
| Square Centimeter to Katha | Square Centimeter ÷ 1,264,642.632 | Recurring · Katha is regional. This row is the Bihar state standard; also 0.00000149, 0.000000374, 0.000000618 and 2 more |
| Square Centimeter to Killa | Square Centimeter ÷ 40,468,564.224 | Recurring |
| Square Centimeter to Lessa | Square Centimeter ÷ 133,780.3776 | Recurring |
| Square Centimeter to Marla | Square Centimeter ÷ 252,928.5264 | Recurring · Marla is regional. This row is the Standard (66-inch karam); also 0.00000478, 0.00000521, 0.00000591 and 1 more |
| Square Centimeter to Murabba | Square Centimeter ÷ 1,011,714,105.6 | Recurring · Murabba is regional. This row is the Punjab canal colony; also 0.00000000158 |
| Square Centimeter to Nali | Square Centimeter ÷ 2,006,705.664 | Recurring |
| Square Centimeter to Perch | Square Centimeter ÷ 252,928.5264 | Recurring |
| Square Centimeter to Pura | Square Centimeter ÷ 53,512,151.04 | Recurring |
| Square Centimeter to Square Feet | Square Centimeter ÷ 929.0304 | Recurring |
| Square Centimeter to Square Inch | Square Centimeter ÷ 6.4516 | Recurring |
| Square Centimeter to Square Karam | Square Centimeter ÷ 28,103.1696 | Recurring · Square Karam is regional. This row is the Standard (66-inch karam); also 0.0000431, 0.0000469, 0.0000532 |
| Square Centimeter to Square Kilometer | Square Centimeter × 0.0000000001 | Exact |
| Square Centimeter to Square Meter | Square Centimeter × 0.0001 | Exact |
| Square Centimeter to Square Mile | Square Centimeter ÷ 25,899,881,103.36 | Recurring |
| Square Centimeter to Square Yard | Square Centimeter ÷ 8,361.2736 | Recurring |
Of the fifty-five statutory documents read for this page, this is the one where a square centimetre decides what a thing is worth in rupees, and it is live, central and current.
Reserve Bank of India (Note Refund) Rules, 2009, rule 8(1), as substituted by Notification No. RBI/DCM (NE) No. 631/08.01.01/2018-19 dated 5 September 2018:
"(i) if the area of the single largest undivided piece of the note presented is more than 50 percent of the area of the respective denomination, rounded off to the next complete square centimetre, full value on mutilated notes of the above denominations shall be payable;
(ii) If the area of the largest undivided piece of the note presented is less than or equal to 50 percent of the area of the note, the claim shall be rejected."
And the rule prints the table that makes it operable, with the footnote "Indicated as the next complete higher square centimetre after half of the area of the notes in a particular denomination":
| Denomination | Length (cm) | Width (cm) | Area (cm²) | Minimum area for full value (cm²) |
|---|---|---|---|---|
| ₹1 | 9.7 | 6.3 | 61.11 | 31 |
| ₹2 | 10.7 | 6.3 | 67.41 | 34 |
| ₹5 | 11.7 | 6.3 | 73.71 | 37 |
| ₹10 | 13.7 | 6.3 | 86.31 | 44 |
| ₹10 (New MG Series) | 12.3 | 6.3 | 77.49 | 39 |
| ₹20 | 14.7 | 6.3 | 92.61 | 47 |
| ₹20 (New MG Series) | 12.9 | 6.3 | 81.27 | 41 |
Every cell in it checks out. Length times width equals the stated area in all seven rows, and the fifth column is the ceiling of half the fourth in all seven. That is worth saying because the Square Mile page checked another statutory schedule cell by cell and found one entry that did not reconcile with another four rows above it.
Half a ₹1 note is 30.555 cm². The table requires 31. Half a ₹10 note is 43.155 cm²; the table requires 44.
| Denomination | Half the note | Required | The rounding costs | As a share of the note |
|---|---|---|---|---|
| ₹1 | 30.555 | 31 | 0.445 cm² | 0.728% |
| ₹2 | 33.705 | 34 | 0.295 cm² | 0.438% |
| ₹5 | 36.855 | 37 | 0.145 cm² | 0.197% |
| ₹10 | 43.155 | 44 | 0.845 cm² | 0.979% |
| ₹10 (MG) | 38.745 | 39 | 0.255 cm² | 0.329% |
| ₹20 | 46.305 | 47 | 0.695 cm² | 0.750% |
| ₹20 (MG) | 40.635 | 41 | 0.365 cm² | 0.449% |
Between 0.145 and 0.845 square centimetres, up to about one per cent of the note, is what "the next complete square centimetre" costs the claimant. In every row. In the same direction.
Nothing improper is happening: rounding to whole square centimetres is what makes the rule administrable by someone holding a torn note over a grid, and the alternative is a counter clerk computing 30.555. What is worth setting out is that the decision is visible, quantified, and falls the same way in all seven rows.
Rule 8(2), for ₹50 and above: full value if the largest single piece is more than 80% of the note's area, a figure substituted for 65 by the same 2018 notification, half value between 40% and 80%, and rejection below 40%.
Then rule 8(2)(iv), inserted at the same time:
"if the claim of mutilated notes of rupees fifty and above denominations consist of a note composed of two pieces of the same note and the two pieces, individually have an area equal to or more than 40 percent of the total area of the note in that denomination, then the claim may be refunded for full value of the note."
Do the arithmetic on that, and it is stronger than it looks. Sub-rule (2)(i) tests the single largest undivided piece. If two pieces each hold at least 40% of the note, the larger of them can hold at most 60%, because the other is taking 40% or more. So a claim that qualifies under (iv) can never satisfy (i)'s more-than-80% test, in any case at all.
(iv) is therefore not a clarification of (i) and not an extension at one boundary. It is a separate route to full value that (i) could not have reached, and every claim it pays in full is a claim (i) would have paid at half.
And a drafting detail, observed and not interpreted: rule 8(1) spells the unit "square centimetre" and rule 8(2), two sub-rules later, spells it "square centimeter". Both spellings sit in the same rule.
Indian Telegraph Rules, 1951, rule 130B, on charging for a phototelegram:
"…on the basis of the area of phototelegram in square centimetres, a fraction of a square centimetre being reckoned as one square centimetre."
Rule 130C gives the tariff it feeds: "(a) Upto 335 square centimetres is Rs. 65. (b) For every additional 100 square centimetres…"
Two Indian instruments (one of 1951 and one of 2009, the latter read in the form the 2018 notification substituted) both making the square centimetre indivisible and both resolving the fraction upward. In 1951 the sender pays for a square centimetre they did not use. In 2009 the claimant must produce a square centimetre more note than half. Both round-ups fall on the same side of the counter, though only the Reserve Bank's is quantified here. The telegraph tariff steps in hundreds of square centimetres, so a one-square-centimetre round-up changes the charge only when it crosses a step, and how often that happened is not something this page can compute from the rule.
(335 square centimetres is 51.9251… square inches, which is not a round imperial figure, so no conversion origin is claimed for it. The 100-square-centimetre step is a round metric one.)
There is one place in Indian law that legislates about which unit an area below a square metre should be expressed in. It does not say square centimetre.
Legal Metrology (Packaged Commodities) Rules, 2011, rule 13(2), and word for word in its predecessor, the Standards of Weights and Measures (Packaged Commodities) Rules, 1977:
"When expressing a quantity less than, — (a) one kilogram, the unit of weight shall be the gram; (b) one metre, the unit of length shall be the centimetre; (c) one square metre, the unit of area shall be the square decimetre; (d) one cubic metre, the unit of volume shall be one cubic centimetre; (e) one cubic decimetre, the unit of volume shall be the cubic centimetre; (f) one litre, the unit of volume shall be the millilitre."
It is a labelling rule, and its reach is narrow. Rule 13 sits in Chapter II of those Rules, headed "Provisions applicable to packages intended for retail sale", and rule 3 takes even that further back: the Chapter "shall not apply to, — (a) packages of commodities containing quantity of more than 25 kg or 25 litre excluding cement and fertilizer sold in bags up to 50 kg; and (b) packaged commodities meant for industrial consumers or institutional consumers."
So rule 13 tells a packer what to print on a retail pack. It is not addressed to legislative drafters, it does not prohibit anything, and it says nothing at all about areas of one square metre or more. An earlier draft of this page called it a drafting rule. It is not one, and the correction is recorded here rather than quietly made.
What it is still worth, on that narrow footing: it is the only Indian provision located in this research that answers the question "below a square metre, which unit?", and its answer is the square decimetre.
Length below a metre goes to the centimetre: a hundredth of a metre. Area below a square metre goes to the square decimetre: a hundredth of a square metre.
Those two clauses share a ratio and not a prefix, and they do so because area scales as the square of length. Divide a length by ten and you divide an area by a hundred. To step down by a hundred in area you take deci, not centi.
(The rule is not consistent in ratio across all six of its clauses, and this page does not claim it is: (a) steps down by a thousand, (d) by a million, (f) by a thousand. It is the (b)–(c) pair that shares the hundredth, and that pair is the one worth looking at.)
And the arithmetic point stands on its own, without the rule. A square centimetre is a ten-thousandth of a square metre, not a hundredth. Anyone who reaches for it as the small-area unit by analogy with the centimetre has reached a hundred times too far down. That is true of the language and of the arithmetic, whoever is drafting and whatever they are drafting.
| Documents in the statutory corpus | |
|---|---|
"square centimetre" |
55 |
"square centimeter" |
35 |
"square decimetre" |
6 |
"square decimeter" |
1 |
No document contains both decimetre spellings, so the union is seven, and all seven are accounted for: rule 13 and its 1977 predecessor, each indexed once as a section and once as a whole instrument, four documents, plus rules 69 and 70 of the Orissa Motor Vehicles Rules, 1993, which set passenger capacity by "the area in square decimetres of the floor of the vehicle divided by sixty-five" and by "dividing the floor area of the vehicle in square decimetres by forty". The seventh is the single American-spelling document, which was counted and not read.
So outside the packaging rule and its predecessor, the unit Indian law names for a small area appears in one state's motor vehicle rules.
Bihar Contract Labour (Regulation and Abolition) Rules, 1972, rule 41:
"…provide at least a floor area of 110 square centimetres for each person making use of the rest room…"
110 square centimetres is 0.011 square metres, 0.118 square feet. It is smaller than a postcard. As a floor area per person it is not a strict standard; it is not a standard at all.
Now the same kind of provision from another state. Maharashtra Factories Rules, 1963, rule 86:
"…there shall be at least 11,000 square centimetres of floor area for every person employed…"
11,000 square centimetres is 1.1 square metres, 11.84 square feet, which is a floor-space standard a person can stand in.
And 110 square decimetres is 11,000 square centimetres, exactly.
Conjecture, and flagged as one: the Bihar figure looks like the right number carrying the wrong prefix. Nothing in either instrument says so; no amendment or judicial correction was found; the two rules are of different states and different decades and nothing connects them but their subject; and this page does not assert it. Nor does it offer rule 13 as an explanation. That rule is a retail-packaging provision of 1977 and 2011, and the Bihar rule it would be offered to explain is of 1972, five years earlier than the older of the two.
What the page does assert is the arithmetic: 110 cm² is 0.118 square feet, 11,000 cm² is 11.84 square feet, and 110 square decimetres is 11,000 square centimetres exactly.
Bihar State Regulation of Cold Storage Licensing Rules, 1993, rule 3:
"Provision of electrification of one watt, per 40.45 square centimetre (5 square feet) shall be made inside the cold storage…"
Five square feet is 4,645.152 square centimetres. The rule's own parenthesis equates it with 40.45. The two figures differ by a factor of 114.84.
Here the rule supplies its own correction, the imperial figure in brackets is unambiguous, so a reader is not actually stranded. What the discrepancy shows is that the metric figure was never checked against the imperial one printed beside it.
Conjecture again, and again flagged: five square feet is 46.45152 square decimetres, which is one digit and one prefix away from "40.45 square centimetre". Offered as a possible origin, not as a finding, and note that it needs the digits changed as well as the prefix. Reading 40.45 as decimetres gives 4,045 cm², which is 4.354 square feet and still not the five the rule states. The finding is the factor of 114.84.
Neither of these is out by a factor of anything. Both are worth seeing, because they show what happens when an imperial threshold is written in metric.
Bombay Lifts Rules, 1958, on lift-car glazing: glass "more than 930 square centimetres in dimension" must be laminated. One square foot is 929.0304 square centimetres, so 930 is 0.9696 cm² above a square foot and 0.104% larger than it. Whether the drafter had a square foot in mind is not stated in the rule and is not asserted here; what the arithmetic shows is that a pane of exactly one square foot falls outside this threshold, by less than one square centimetre.
Merchant Shipping (Crew Accommodation) Rules, 1960, rule 12, as substituted by G.S.R. 61 dated 6 January 1967: an opening in a bulkhead or door "shall be at least [38.71 square centimetre]". Six square inches is 38.7096 cm², so 38.71 is six square inches at two decimals, 6.000062 square inches, keeping the value to within 0.0004 cm². A 1967 amendment metricating a figure and not moving it.
Put the two beside each other and the difference is the number of decimals kept. 930 overshoots a square foot by 0.104%; 38.71 overshoots 38.7096 by 0.00103%, a factor of 101 between them, which is a decimal place either side of the digit each drafter stopped at.
Fifty-five documents in the indexed statutory corpus contain the phrase in the British spelling, and all fifty-five result rows were read. Documents are not instruments: Indian Kanoon indexes a rule and its parent instrument separately, so the Faridabad building rules below appear more than once, and fifty-five documents are fewer than fifty-five distinct rules.
The uses fall into two kinds, and the balance is the opposite of what the imperial small unit turns out to show. The two kinds are not a partition and cannot be subtracted from one another (the Faridabad rules supply both, one in rule 45 and another in rules 49 and 77), so the only count given here is the one that was measured.
As a denominator. "per square centimetre" returns 24 documents against the phrase's 55, 43.6%.
"…hydrants with minimum water pressure of seven kilograms per square centimetre…" (Static and Mobile Pressure Vessels (Unfired) Rules 1981 r.28, repeated in the 2016 Rules r.26) · "…show at all times, the internal pressure in kilogram per square centimetre…" (Building and Other Construction Workers Central Rules 1998 r.207, and the Bihar, Chhattisgarh, Tamil Nadu and Delhi versions of the same rule) · "…shall not exceed 1/5 ampere per square centimetre and at the cathode 1/50 ampere per square centimetre" (Indian Electricity Rules 1956 r.143) · "Maximum stress in kg/square centimetre" (Faridabad Complex Administration Building Rules 1989 r.45) · "…specify in terms of kilograms per square centimetre" (Gujarat Gas Act 2001 s.2).
One of them carries both this unit and its imperial twin in a single clause. Bihar Factories Rules 1950, r.57, on air receivers: the gauge must show the pressure "in lbs. per square inch, or in kilogram per square centimetre".
As an area that is the operative quantity, the kind that dominates the rest of what was read.
A banknote (the RBI rule above) · pesticide labels, "not less than 130 square centimetres… the three panel label shall not be less than 210 square centimetres" (Insecticides Rules 1971 r.19) · "the minimum illuminated area of each direction indicator shall be 60 square centimetres", a rear indicator lamp "of not less than 100 square centimetres", and reflectors "of not less than seven square centimetres" (Central Motor Vehicles Rules 1989, rr.102, 105 and 110) · lift glazing above 930 cm² (Bombay Lifts Rules 1958) · a domestic boiler chimney "not exceeding 500 square centimetres in area" and a rainwater down pipe "of minimum area of 75 square centimetres… for every 50 square metre of the flat roof area" (Faridabad Complex Administration Building Rules 1989, rr.49 and 77) · explosion relief "not less than 2200 square centimetres for every one cubic meter of volume of the oven" (M.P. Factories Rules 1962 r.73A; U.P. Factories Rules 1950 r.62A) · "an area of not less than 3600 square centimetres of the floor of the vehicle… kept open for each person" (M.P. and Chhattisgarh Motor Vehicles Rules 1994, r.97) · floor space per person (Maharashtra r.86 and Bihar r.41) · phototelegram area (Telegraph Rules 1951).
Why the balance runs this way is not something the corpus states, and no reason is offered here. The one fact that can be set beside it is the size: a square centimetre is a square a shade under two-fifths of an inch on a side, one eighty-sixth of a ₹10 note, a square inch is 6.4516 times bigger, and the things these rules specify (a label, a lamp, a reflector, a note) are in the first range rather than the second.
No Indian record of rights written in square centimetres was found, and none is likely. The smallest metric unit an Indian land record uses is the square metre, established from the Punjab manual, the UP khatauni and the Maharashtra 7/12. Records of rights are not in the database searched for this page, so the statement rests on that sibling and on the scale argument below, not on a search of records.
In the Supreme Court corpus, counting both spellings and removing the overlap, this unit appears in 2 documents and the square metre in 306, 153 to one.
The scale gap is the reason, and it is one line of arithmetic. A record field kept to whole square metres carries 10,000 square centimetres of granularity. Any square-centimetre figure a land document could carry would vanish inside the rounding of the field it sat in.
One methodological finding, because it changes what a reader searching for this unit will find.
Indian Kanoon lemmatises inflection but not orthography. "square inch" and "square inches" return the same set. "square centimetre" and "square centimeter" do not: 55 documents against 35, with 5 carrying both, a union of 85 distinct documents. A search in the British spelling misses 30 of the 85, about a third; a search in the American spelling misses 50, nearly three-fifths.
The Reserve Bank's own rule is the demonstration: sub-rule 8(1) says centimetre and sub-rule 8(2) says centimeter, so a reader searching either spelling finds the rule and only half of what it says about the unit.
Counts on this page are labelled by spelling. Where a union figure is given (the 85 above, the seven square-decimetre documents, the Supreme Court comparison) it is computed from three searches and said to be. Where a single figure is given without a union, it is the British spelling, and the 24 "per square centimetre" documents and the 55 are both of that kind.
Square metres = Square centimetres ÷ 10,000 · reverse Square centimetres = Square metres × 10,000
| One square centimetre is | …and one of them is this many square centimetres | |
|---|---|---|
| Square metres | 0.0001 | 10,000 |
| Square decimetres | 0.01 | 100 |
| Square inches | 0.1550003100006… | 6.4516 |
| Square feet | 0.0010763910416… | 929.0304 |
| Square yards | 0.0001195990046… | 8,361.2736 |
| Ares | 0.000001 | 1,000,000 |
| Hectares | 0.00000001 | 100,000,000 |
Read the two columns together and the whole behaviour of this unit is visible. Every figure in the right-hand column is exact. Only the metric rows of the left-hand column are.
Use the square-metre relation. It is a shift of the decimal point four places and it is exact in both directions, and where an Indian land record carries a metric area at all, the square metre is the unit it carries it in.
The imperial relations recur and there is nothing to be done about it. 6.4516 square centimetres make a square inch exactly, so going the other way divides by 6.4516 and never stops. Convert into square centimetres, not out of them, whenever the choice is yours.
There is nothing below a square centimetre in this series. Above it, the four metric units convert exactly in both directions, and every non-metric one is exact only in the direction below:
6.4516 to the square inch · 929.0304 to the square foot · 8,361.2736 to the square yard · 1,011,714.1056 to the guntha · 252,928.5264 to the marla · 40,468,564.224 to the acre · 25,899,881,103.36 to the square mile.
Every one of those is exact, and every one is a number nobody will ever use.
They are printed anyway, and the reason is mechanical rather than editorial. Every page in this series converts its unit into all thirty-two of the others on the same quantity ladder, so the same conversion appears twice, once here as square centimetres to the acre, once on the Acre page as acres to the square centimetre, and the two are generated from one registry of definitions and checked against each other. A conversion nobody runs is still doing work: it is a constraint on the conversions people do run. That uniform ladder is also what lets a reader who lands on any page of the series find the target they came for, rather than discovering that the page they happened to open is the one that omits it.
Recurring figures on this page carry an ellipsis and are truncated at the cut, never rounded up into it, so a printed digit is a digit that is actually there.
Using 6.45 instead of 6.4516 for the square inch. Low by 0.0016 cm² per square inch, which is one part in 4,032. Trivial once and compounding in a chain, and the exact figure is four digits long. That comparison is worked out where the imperial small unit is taken.
Reading a "per square centimetre" figure as an area. Nearly half the unit's appearances in Indian statute are rates, kilograms per square centimetre, amperes per square centimetre, watts per square centimetre. Seven kilograms per square centimetre is a pressure, not a size. Establish what the square centimetre is of before converting it.
Treating a square centimetre as the hundredth of a square metre. It is the ten-thousandth. A hundredth of a square metre is a square decimetre, 100 square centimetres, and that is the unit rule 13(2)(c) of the Legal Metrology (Packaged Commodities) Rules 2011 names for an area below a square metre on a retail package label. The error is not hypothetical: one Bihar rule prescribes a rest-room floor area of 110 square centimetres, a hundredth of what the same standard is in Maharashtra, and a second equates 40.45 square centimetres with five square feet, which is out by a factor of 114.84.
How many square centimetres in a square metre? Exactly 10,000. Both directions are a shift of the decimal point four places, and it is the only conversion on this page a reader is likely to need twice.
How many square centimetres in a square inch? 6.4516, exactly, because an inch is exactly 25.4 millimetres. Going the other way divides by it and recurs: one square centimetre is 0.1550003100006… square inches.
How many square centimetres in a square foot? 929.0304, exactly. In a square yard, 8,361.2736. In an acre, 40,468,564.224: all exact, and all of them numbers nobody uses.
Why do the metric conversions terminate and the imperial ones recur? Because the foot is defined as 0.3048 metre exactly, so imperial units convert into metric exactly and the return journey divides by a number that never clears. The Hectare page sets that out for metric units generally and the Square Kilometer page gives the mechanism; this page adds only the scale at which it happens.
Is a square centimetre a hundredth of a square metre? No: a ten-thousandth. A hundredth of a square metre is a square decimetre, which is 100 square centimetres. Area scales as the square of length, so dividing a length by ten divides an area by a hundred.
Which unit does Indian law name for an area below one square metre? The square decimetre: in the one place it legislates about the question at all. Rule 13(2)(c) of the Legal Metrology (Packaged Commodities) Rules 2011, and its 1977 predecessor, provide that when expressing a quantity less than one square metre "the unit of area shall be the square decimetre". That rule is a retail-package labelling provision: it sits in a chapter headed "Provisions applicable to packages intended for retail sale" and does not reach areas of a square metre or more. Across the whole statutory corpus the square decimetre appears in seven documents, four of them that rule and its predecessor, two index rows each, with the Orissa Motor Vehicles Rules supplying two more and one American-spelling document the seventh.
Is the square centimetre used in Indian land records? None was found. It appears in no land area across the fifty-five statutory documents read for this page, and records of rights are not in that database, so the answer rests on the scale argument and on the Square Metre page: a record kept to whole square metres carries 10,000 square centimetres of granularity, four orders of magnitude coarser than this unit. In the Supreme Court corpus, both spellings counted and the overlap removed, it appears in 2 documents against 306 for the square metre.
What does the Reserve Bank use it for? Deciding what a torn banknote is worth. Rule 8 of the RBI (Note Refund) Rules 2009 pays full value on a note below ₹50 if the largest undivided piece exceeds half the note's area "rounded off to the next complete square centimetre", and the rule prints a table of note areas: a ₹10 note is 13.7 by 6.3 centimetres, 86.31 cm², and 44 cm² of it must survive.
Does that rounding matter? It costs the claimant between 0.145 and 0.845 square centimetres, up to about one per cent of the note, and it runs the same way in all seven rows. Half a ₹10 note is 43.155 cm² and the table requires 44.
Why do searches for this unit give different answers?
Because the two spellings are indexed separately. "square centimetre" returns 55 statutory documents and "square centimeter" 35, with 5 carrying both, a union of 85, so the British spelling alone misses about a third and the American alone nearly three-fifths. The Reserve Bank's own rule uses both spellings, two sub-rules apart.
Statutes and rules. Every quotation was read in a text of the instrument as Indian Kanoon indexes it, amendment footnotes included, rather than in a description of it, with one exception marked in place: the scope of Chapter II of the Packaged Commodities Rules, and rule 3's exclusions, were read in the West Bengal consumer department's published copy of those Rules. The gazette texts were not retrieved and no claim rests on a gazette reading.
Two conjectures, kept out of the findings. Bihar's 110 square centimetres resolves exactly if read as decimetres; its 40.45 square centimetres does not resolve on a prefix alone and would need different digits too. Neither is asserted, and rule 13 is not offered as an explanation for either. It is a retail-packaging provision of 1977 and 2011, and the Bihar rest-room rule is of 1972. What is asserted in each case is arithmetic: 110 cm² is 0.118 square feet against Maharashtra's 11.84 for the same standard, and 110 dm² is 11,000 cm² exactly; five square feet is 4,645.152 cm², so the printed 40.45 is out by a factor of 114.84.
How the corpus was counted, and the spelling problem. Every count was run on Indian Kanoon on 10 September 2026 against two controls: a nonsense term under the same filter returns nothing, and the unfiltered figure (79) differs from the statutory-corpus figure (55), so the filter is applied rather than silently ignored. All 55 result rows in the British spelling were read. The American-spelling set was counted, not read, and the classification claims are bounded to the 55. The union figure of 85 distinct documents is computed from three searches, 55 plus 35 less the 5 that contain both, and is stated as computed.
A correction recorded rather than quietly made. An earlier draft of this page described rule 13 of the Packaged Commodities Rules as Indian law's drafting rule for units of area, and used it to explain two Bihar figures. It is a retail-package labelling rule in a chapter that says so, it binds no drafter, and its 1977 predecessor post-dates the 1972 Bihar rule it was offered to explain. The section is rewritten and the explanation withdrawn; the arithmetic it rested on is unchanged.
Arithmetic. Two definitions carry this page: the metre, and the inch at 25.4 millimetres exactly. Every figure is held as a ratio of whole numbers and turned into a decimal only when printed. A figure carrying an ellipsis is truncated at the cut, never rounded up into it; figures given to a stated number of places without one are ordinary roundings: 43.6%, 71.6%, 114.84, 0.104%, 0.00103%, 0.118, 11.84, 153, and each of the seven percentages in the rounding table. Two are truncations rather than roundings and are marked here because they are not marked there: 4,032 stands for 4,032.25 and 6.000062 for 6.0000620001. The exact values (0.0001, 0.9696, 6.4516, 929.0304, 8,361.2736, 40,468,564.224) are not roundings at all, and neither is the factor of 101 between the two overshoots. The termination counts (four of thirty-two out, thirty-two of thirty-two in) were computed by testing every unit's exact ratio for a prime factor other than 2 or 5, and the conversion core below was re-derived by a second program that did not write it. The conversion tables round to six decimal places, or to as many places as three significant digits need, whichever is more, which on this page is usually the second, because a square centimetre is 0.0000000247 acres and six places would have printed that as nothing at all.
Computed here and stated in no source. Every one of these is arithmetic on figures the instruments themselves print: every figure in the rounding table, which is the ceiling of half each note's area less half that area; the 114.84 factor and the 4,645.152 cm² behind it; the 11,000-versus-110 comparison and the 110 dm² identity; the 0.9696 cm² and 0.104% by which the Bombay Lifts threshold exceeds a square foot; the 6.000062 square inches behind the Merchant Shipping figure; the 43.6%, the union of 85 and the 153-to-one Supreme Court ratio; and the 10,000 square centimetres of granularity in a whole-square-metre record field. The rounding table, the two Bihar factors and the two conjectures are flagged where they appear; the rest are declared here.
Searched for and not found, and asserted nowhere. Any Indian instrument stating a land area in square centimetres (none across the 55 documents read · any government statement of the scales at which Indian cadastral maps are drawn, which would let a square centimetre of map be converted to ground; the Square Metre page owns the one scale this series has sourced and this page adds none · the gazette texts of the RBI rules and the 2018 notification · any amendment or judicial correction of the two Bihar figures, so their status today is unknown · any explanation for rule 13(2)(d) prescribing the cubic centimetre for volumes below a cubic metre while (e) prescribes the same unit for volumes below a cubic decimetre, which makes (e) redundant on its face) noted, not interpreted.
On the sibling pages. The Square Inch page owns the imperial small unit and its 71.6% denominator share; the Square Metre page owns what Indian records are kept in and at what precision; the Hectare page owns the direction rule for metric exactness; the Square Kilometer page owns its mechanism; the Square Feet page owns India's property market. All are cited here and none is restated.
| Conversion | 1 Square Centimeter | Note |
|---|---|---|
| Acre | 0.0000000247 | Recurring; Exact by definition: 43,560 sq ft = 4,840 sq yd |
| Ankanam | 0.0000149 (Standard) | Region-specific; also 0.0000299 (Tirupati) |
| Ares | 0.000001 | Exact; 100 m², the metric are |
| Bigha | 0.0000000395 (UP pucca / Bihar / Rajasthan pucca) | Region-specific; also 0.000000119 (UP kachha (6⅔ biswa)) · 0.000000158 (UP kachha (5 biswa) / Uttarakhand hills) · 0.0000000618 (Rajasthan kachha / Gujarat vigha / Uttarakhand Terai) |
| Biswa | 0.000000791 (UP / Rajasthan pucca) | Region-specific; also 0.00000124 (Rajasthan kachha) · 0.00000237 (Punjab / Haryana old records) · 0.00000247 (Himachal Pradesh) |
| Biswa Kacha | 0.00000237 (Punjab / Haryana revenue definition) | Region-specific; also 0.00000124 (Rajasthan kachha reading) |
| Cent | 0.00000247 | Recurring; One hundredth of an acre, exactly |
| Chatak | 0.0000239 | Recurring; 5 sq yd exactly; 16 to the cottah, 968 to the acre. Reported, not stated by any instrument located |
| Decimal | 0.00000247 | Recurring; One hundredth of an acre, exactly |
| Dhur | 0.0000158 (Bihar / Jharkhand (Patna chain)) | Region-specific; also 0.000299 (Tripura) |
| Dismil | 0.00000247 | Recurring; The decimal under another name |
| Gaj | 0.000120 | Recurring; The square yard, 9 sq ft |
| Gajam | 0.000120 | Recurring; The square yard in Telugu, 9 sq ft |
| Ground | 0.000000448 | Recurring; Tamil Nadu Urban Land Tax Act 1966, s.2(8-A): "an area comprising two hundred and twenty three square metres (two thousand and four hundred square feet)" |
| Guntha | 0.000000988 | Recurring; 121 sq yd; 40 guntha = 1 acre exactly |
| Hectare | 0.00000001 | Exact; 10,000 m² exactly |
| Kanal | 0.000000198 (Standard (66-inch karam)) | Region-specific; also 0.000000239 (Majha belt (60-inch karam)) · 0.000000260 (Doaba belt (57.5-inch karam)) · 0.000000295 (Kapurthala belt (54-inch karam)) |
| Katha | 0.000000791 (Bihar state standard) | Region-specific; also 0.00000149 (West Bengal / Jharkhand) · 0.000000374 (Assam) · 0.000000618 (Bihar (Chhapra)) |
| Killa | 0.0000000247 | Recurring; The acre under its Punjabi name |
| Lessa | 0.00000747 | Recurring; The 12-foot mauzadari jar squared (Assam Land Records Manual r.117); 20 to a katha, 100 to a bigha |
| Marla | 0.00000395 (Standard (66-inch karam)) | Region-specific; also 0.00000478 (Majha belt (60-inch karam)) · 0.00000521 (Doaba belt (57.5-inch karam)) · 0.00000591 (Kapurthala belt (54-inch karam)) |
| Murabba | 0.000000000988 (Punjab canal colony) | Region-specific; also 0.00000000158 (Rajasthan (Indira Gandhi Canal)) |
| Nali | 0.000000498 | Recurring; 240 sq yd; 16 mutthi of 135 sq ft. No instrument located states the figure |
| Perch | 0.00000395 | Recurring; 30.25 sq yd; 160 perches = 1 acre |
| Pura | 0.0000000187 | Recurring; 4 Assam bigha of 14,400 sq ft. The 4:1 ratio is SOURCED -- the Supreme Court states it in 1961 and 1971 and the Gauhati High Court in 1986, 2023, 2024 and 2026 -- but no instrument, judgment or manual states the square-foot figure, which is derived from the Assam bigha |
| Square Feet | 0.001076 | Recurring; The base of this series |
| Square Inch | 0.155 | Recurring; One 144th of a square foot |
| Square Karam | 0.0000356 (Standard (66-inch karam)) | Region-specific; also 0.0000431 (Majha belt (60-inch karam)) · 0.0000469 (Doaba belt (57.5-inch karam)) · 0.0000532 (Kapurthala belt (54-inch karam)) |
| Square Kilometer | 0.0000000001 | Exact; 1,000,000 m² |
| Square Meter | 0.0001 | Exact; The SI unit of area |
| Square Mile | 0.0000000000386 | Recurring; Standards of Weights and Measures Act 1976, Schedule (see s.79): "1 square mile = 2 589 988.110 336 square metres"; 640 acres exactly |
| Square Yard | 0.000120 | Recurring; 9 sq ft exactly |
1 square centimetre = 0.0000000247 acres, recurring. An acre is exact by definition: 43,560 sq ft = 4,840 sq yd.
The ratio is the fraction 125/5,058,570,528, 0.0000000247…, which recurs.
Acre = Square Centimeter ÷ 40,468,564.224
| Square Centimeter | Acre |
|---|---|
| 1 | 0.0000000247 |
| 2 | 0.0000000494 |
| 3 | 0.0000000741 |
| 5 | 0.000000124 |
| 10 | 0.000000247 |
| 20 | 0.000000494 |
| 50 | 0.00000124 |
| 100 | 0.00000247 |
| 200 | 0.00000494 |
| 500 | 0.0000124 |
| 1,000 | 0.0000247 |
5 square centimetres ÷ 40,468,564.224 = 0.000000124 acres
Square Centimeter = Acre × 40,468,564.224
1 square centimetre = 0.000001 ares, exact. An are is 100 m², the metric are.
Ares = Square Centimeter × 0.000001
| Square Centimeter | Ares |
|---|---|
| 1 | 0.000001 |
| 2 | 0.000002 |
| 3 | 0.000003 |
| 5 | 0.000005 |
| 10 | 0.00001 |
| 20 | 0.00002 |
| 50 | 0.00005 |
| 100 | 0.0001 |
| 200 | 0.0002 |
| 500 | 0.0005 |
| 1,000 | 0.001 |
5 square centimetres × 0.000001 = 0.000005 ares
Square Centimeter = Ares × 1,000,000
1 square centimetre = 0.00000001 hectares, exact. A hectare is 10,000 m² exactly.
Hectare = Square Centimeter × 0.00000001
| Square Centimeter | Hectare |
|---|---|
| 1 | 0.00000001 |
| 2 | 0.00000002 |
| 3 | 0.00000003 |
| 5 | 0.00000005 |
| 10 | 0.0000001 |
| 20 | 0.0000002 |
| 50 | 0.0000005 |
| 100 | 0.000001 |
| 200 | 0.000002 |
| 500 | 0.000005 |
| 1,000 | 0.00001 |
5 square centimetres × 0.00000001 = 0.00000005 hectares
Square Centimeter = Hectare × 100,000,000
1 square centimetre = 0.001076 square feet, recurring. A square foot is the base of this series.
929.0304 square centimetres to the square foot, exact, because the international foot is exactly 0.3048 metres. The figure terminates in this direction and recurs in the other.
The ratio is the fraction 625/580,644, 0.00107639…, which recurs.
Square Feet = Square Centimeter ÷ 929.0304
| Square Centimeter | Square Feet |
|---|---|
| 1 | 0.001076 |
| 2 | 0.002153 |
| 3 | 0.003229 |
| 5 | 0.005382 |
| 10 | 0.010764 |
| 20 | 0.021528 |
| 50 | 0.05382 |
| 100 | 0.107639 |
| 200 | 0.215278 |
| 500 | 0.538196 |
| 1,000 | 1.076391 |
5 square centimetres ÷ 929.0304 = 0.005382 square feet
Square Centimeter = Square Feet × 929.0304
1 square centimetre = 0.155 square inches, recurring. A square inch is one 144th of a square foot.
The ratio is the fraction 2,500/16,129, 0.15500031…, which recurs.
Square Inch = Square Centimeter ÷ 6.4516
| Square Centimeter | Square Inch |
|---|---|
| 1 | 0.155 |
| 2 | 0.310001 |
| 3 | 0.465001 |
| 5 | 0.775002 |
| 10 | 1.550003 |
| 20 | 3.100006 |
| 50 | 7.750016 |
| 100 | 15.500031 |
| 200 | 31.000062 |
| 500 | 77.500155 |
| 1,000 | 155.00031 |
5 square centimetres ÷ 6.4516 = 0.775002 square inches
Square Centimeter = Square Inch × 6.4516
1 square centimetre = 0.0000000001 square kilometres, exact. A square kilometre is 1,000,000 m².
Square Kilometer = Square Centimeter × 0.0000000001
| Square Centimeter | Square Kilometer |
|---|---|
| 1 | 0.0000000001 |
| 2 | 0.0000000002 |
| 3 | 0.0000000003 |
| 5 | 0.0000000005 |
| 10 | 0.000000001 |
| 20 | 0.000000002 |
| 50 | 0.000000005 |
| 100 | 0.00000001 |
| 200 | 0.00000002 |
| 500 | 0.00000005 |
| 1,000 | 0.0000001 |
5 square centimetres × 0.0000000001 = 0.0000000005 square kilometres
Square Centimeter = Square Kilometer × 10,000,000,000
1 square centimetre = 0.0001 square metres, exact. A square metre is the SI unit of area.
Ten thousand square centimetres to the square metre, exactly.
Square Meter = Square Centimeter × 0.0001
| Square Centimeter | Square Meter |
|---|---|
| 1 | 0.0001 |
| 2 | 0.0002 |
| 3 | 0.0003 |
| 5 | 0.0005 |
| 10 | 0.001 |
| 20 | 0.002 |
| 50 | 0.005 |
| 100 | 0.01 |
| 200 | 0.02 |
| 500 | 0.05 |
| 1,000 | 0.1 |
5 square centimetres × 0.0001 = 0.0005 square metres
Square Centimeter = Square Meter × 10,000
1 square centimetre = 0.0000000000386 square miles, recurring. A square mile is standards of Weights and Measures Act 1976, Schedule (see s.79): "1 square mile = 2 589 988.110 336 square metres"; 640 acres exactly.
The ratio is the fraction 25/647,497,027,584, 0.0000000000386…, which recurs.
Square Mile = Square Centimeter ÷ 25,899,881,103.36
| Square Centimeter | Square Mile |
|---|---|
| 1 | 0.0000000000386 |
| 2 | 0.0000000000772 |
| 3 | 0.000000000116 |
| 5 | 0.000000000193 |
| 10 | 0.000000000386 |
| 20 | 0.000000000772 |
| 50 | 0.00000000193 |
| 100 | 0.00000000386 |
| 200 | 0.00000000772 |
| 500 | 0.0000000193 |
| 1,000 | 0.0000000386 |
5 square centimetres ÷ 25,899,881,103.36 = 0.000000000193 square miles
Square Centimeter = Square Mile × 25,899,881,103.36
Exactness of the method is not exactness of the result: where a ratio does not terminate, the table says so and the formula gives the fraction.
1 square centimetre = 0.0000149 ankanam on the Standard definition; 0.0000299 on the Tirupati definition. Ankanam = Square Centimeter ÷ 66,890.1888 (Standard) · reverse Square Centimeter = Ankanam × 66,890.1888
| Square Centimeter | Ankanam (Standard) |
|---|---|
| 1 | 0.0000149 |
| 2 | 0.0000299 |
| 3 | 0.0000448 |
| 5 | 0.0000747 |
| 10 | 0.000149 |
| 20 | 0.000299 |
| 50 | 0.000747 |
| 100 | 0.001495 |
| 200 | 0.00299 |
| 500 | 0.007475 |
| 1,000 | 0.01495 |
Ankanam, Tirupati (36 sq ft):
| Square Centimeter | Ankanam (Tirupati) |
|---|---|
| 1 | 0.0000299 |
| 2 | 0.0000598 |
| 3 | 0.0000897 |
| 5 | 0.000149 |
| 10 | 0.000299 |
| 20 | 0.000598 |
| 50 | 0.001495 |
| 100 | 0.00299 |
| 200 | 0.00598 |
| 500 | 0.01495 |
| 1,000 | 0.0299 |
1 square centimetre = 0.0000000395 bigha on the UP pucca / Bihar / Rajasthan pucca definition; 0.000000119 on the UP kachha (6⅔ biswa) definition · 0.000000158 on the UP kachha (5 biswa) / Uttarakhand hills definition · 0.0000000618 on the Rajasthan kachha / Gujarat vigha / Uttarakhand Terai definition · 0.0000000897 on the Madhya Pradesh definition · 0.0000000747 on the West Bengal / Assam / Jharkhand definition · 0.000000124 on the Himachal Pradesh / Haryana Rohtak belt definition · 0.0000000494 on the Punjab / west Haryana definition · 0.000000133 on the Haryana Ambala belt definition. Bigha = Square Centimeter ÷ 25,292,852.64 (UP pucca / Bihar / Rajasthan pucca) · reverse Square Centimeter = Bigha × 25,292,852.64
| Square Centimeter | Bigha (UP pucca / Bihar / Rajasthan pucca) |
|---|---|
| 1 | 0.0000000395 |
| 2 | 0.0000000791 |
| 3 | 0.000000119 |
| 5 | 0.000000198 |
| 10 | 0.000000395 |
| 20 | 0.000000791 |
| 50 | 0.00000198 |
| 100 | 0.00000395 |
| 200 | 0.00000791 |
| 500 | 0.0000198 |
| 1,000 | 0.0000395 |
Every definition as a factor. Multiply square centimetre by the figure shown.
| Bigha definition | Where | Bigha per square centimetre |
|---|---|---|
| UP pucca / Bihar / Rajasthan pucca (the definition used here) | Purvanchal, Awadh, Patna belt, east Rajasthan | 0.0000000395 |
| UP kachha (6⅔ biswa) | West Uttar Pradesh | 0.000000119 |
| UP kachha (5 biswa) / Uttarakhand hills | West UP, Kumaon and Garhwal hills | 0.000000158 |
| Rajasthan kachha / Gujarat vigha / Uttarakhand Terai | Marwar, Gujarat, Terai | 0.0000000618 |
| Madhya Pradesh; reported, not sourced | Madhya Pradesh | 0.0000000897 |
| West Bengal / Assam / Jharkhand | West Bengal, Assam, Ranchi | 0.0000000747 |
| Himachal Pradesh / Haryana Rohtak belt | Himachal Pradesh, Rohtak, Hisar | 0.000000124 |
| Punjab / west Haryana | Punjab, kanal belt of Haryana | 0.0000000494 |
| Haryana Ambala belt | Ambala, Gurugram, Faridabad, Karnal, Panipat | 0.000000133 |
1 square centimetre = 0.000000791 biswa on the UP / Rajasthan pucca definition; 0.00000124 on the Rajasthan kachha definition · 0.00000237 on the Punjab / Haryana old records definition · 0.00000247 on the Himachal Pradesh definition. Biswa = Square Centimeter ÷ 1,264,642.632 (UP / Rajasthan pucca) · reverse Square Centimeter = Biswa × 1,264,642.632
| Square Centimeter | Biswa (UP / Rajasthan pucca) |
|---|---|
| 1 | 0.000000791 |
| 2 | 0.00000158 |
| 3 | 0.00000237 |
| 5 | 0.00000395 |
| 10 | 0.00000791 |
| 20 | 0.0000158 |
| 50 | 0.0000395 |
| 100 | 0.0000791 |
| 200 | 0.000158 |
| 500 | 0.000395 |
| 1,000 | 0.000791 |
Biswa, Rajasthan kachha (871.2 sq ft):
| Square Centimeter | Biswa (Rajasthan kachha) |
|---|---|
| 1 | 0.00000124 |
| 2 | 0.00000247 |
| 3 | 0.00000371 |
| 5 | 0.00000618 |
| 10 | 0.0000124 |
| 20 | 0.0000247 |
| 50 | 0.0000618 |
| 100 | 0.000124 |
| 200 | 0.000247 |
| 500 | 0.000618 |
| 1,000 | 0.001236 |
Biswa, Punjab / Haryana old records (453.75 sq ft):
| Square Centimeter | Biswa (Punjab / Haryana old records) |
|---|---|
| 1 | 0.00000237 |
| 2 | 0.00000474 |
| 3 | 0.00000712 |
| 5 | 0.0000119 |
| 10 | 0.0000237 |
| 20 | 0.0000474 |
| 50 | 0.000119 |
| 100 | 0.000237 |
| 200 | 0.000474 |
| 500 | 0.001186 |
| 1,000 | 0.002372 |
Biswa, Himachal Pradesh (435.6 sq ft):
| Square Centimeter | Biswa (Himachal Pradesh) |
|---|---|
| 1 | 0.00000247 |
| 2 | 0.00000494 |
| 3 | 0.00000741 |
| 5 | 0.0000124 |
| 10 | 0.0000247 |
| 20 | 0.0000494 |
| 50 | 0.000124 |
| 100 | 0.000247 |
| 200 | 0.000494 |
| 500 | 0.001236 |
| 1,000 | 0.002471 |
1 square centimetre = 0.00000237 biswa kacha on the Punjab / Haryana revenue definition; 0.00000124 on the Rajasthan kachha reading definition. Biswa Kacha = Square Centimeter ÷ 421,547.544 (Punjab / Haryana revenue) · reverse Square Centimeter = Biswa Kacha × 421,547.544
453.75 square feet either way, so the Square Centimeter to Biswa, Punjab / Haryana old records figures apply unchanged. What differs between the two is the record each word belongs to, not the size.
Biswa Kacha, Rajasthan kachha reading (871.2 sq ft):
871.2 square feet either way, so the Square Centimeter to Biswa, Rajasthan kachha figures apply unchanged. What differs between the two is the record each word belongs to, not the size.
1 square centimetre = 0.0000158 dhur on the Bihar / Jharkhand (Patna chain) definition; 0.000299 on the Tripura definition. Dhur = Square Centimeter ÷ 63,232.1316 (Bihar / Jharkhand (Patna chain)) · reverse Square Centimeter = Dhur × 63,232.1316
| Square Centimeter | Dhur (Bihar / Jharkhand (Patna chain)) |
|---|---|
| 1 | 0.0000158 |
| 2 | 0.0000316 |
| 3 | 0.0000474 |
| 5 | 0.0000791 |
| 10 | 0.000158 |
| 20 | 0.000316 |
| 50 | 0.000791 |
| 100 | 0.001581 |
| 200 | 0.003163 |
| 500 | 0.007907 |
| 1,000 | 0.015815 |
Dhur, Tripura (3.6 sq ft):
| Square Centimeter | Dhur (Tripura) |
|---|---|
| 1 | 0.000299 |
| 2 | 0.000598 |
| 3 | 0.000897 |
| 5 | 0.001495 |
| 10 | 0.00299 |
| 20 | 0.00598 |
| 50 | 0.01495 |
| 100 | 0.0299 |
| 200 | 0.0598 |
| 500 | 0.149499 |
| 1,000 | 0.298998 |
1 square centimetre = 0.000000198 kanal on the Standard (66-inch karam) definition; 0.000000239 on the Majha belt (60-inch karam) definition · 0.000000260 on the Doaba belt (57.5-inch karam) definition · 0.000000295 on the Kapurthala belt (54-inch karam) definition. Kanal = Square Centimeter ÷ 5,058,570.528 (Standard (66-inch karam)) · reverse Square Centimeter = Kanal × 5,058,570.528
| Square Centimeter | Kanal (Standard (66-inch karam)) |
|---|---|
| 1 | 0.000000198 |
| 2 | 0.000000395 |
| 3 | 0.000000593 |
| 5 | 0.000000988 |
| 10 | 0.00000198 |
| 20 | 0.00000395 |
| 50 | 0.00000988 |
| 100 | 0.0000198 |
| 200 | 0.0000395 |
| 500 | 0.0000988 |
| 1,000 | 0.000198 |
Kanal, Majha belt (60-inch karam) (4,500 sq ft):
| Square Centimeter | Kanal (Majha belt (60-inch karam)) |
|---|---|
| 1 | 0.000000239 |
| 2 | 0.000000478 |
| 3 | 0.000000718 |
| 5 | 0.00000120 |
| 10 | 0.00000239 |
| 20 | 0.00000478 |
| 50 | 0.0000120 |
| 100 | 0.0000239 |
| 200 | 0.0000478 |
| 500 | 0.000120 |
| 1,000 | 0.000239 |
Kanal, Doaba belt (57.5-inch karam) (4,132.8125 sq ft):
| Square Centimeter | Kanal (Doaba belt (57.5-inch karam)) |
|---|---|
| 1 | 0.000000260 |
| 2 | 0.000000521 |
| 3 | 0.000000781 |
| 5 | 0.00000130 |
| 10 | 0.00000260 |
| 20 | 0.00000521 |
| 50 | 0.0000130 |
| 100 | 0.0000260 |
| 200 | 0.0000521 |
| 500 | 0.000130 |
| 1,000 | 0.000260 |
Kanal, Kapurthala belt (54-inch karam) (3,645 sq ft):
| Square Centimeter | Kanal (Kapurthala belt (54-inch karam)) |
|---|---|
| 1 | 0.000000295 |
| 2 | 0.000000591 |
| 3 | 0.000000886 |
| 5 | 0.00000148 |
| 10 | 0.00000295 |
| 20 | 0.00000591 |
| 50 | 0.0000148 |
| 100 | 0.0000295 |
| 200 | 0.0000591 |
| 500 | 0.000148 |
| 1,000 | 0.000295 |
1 square centimetre = 0.000000791 katha on the Bihar state standard definition; 0.00000149 on the West Bengal / Jharkhand definition · 0.000000374 on the Assam definition · 0.000000618 on the Bihar (Chhapra) definition · 0.000000566 on the Bihar (Hajipur) definition · 0.000000329 on the Bihar (Bettiah) definition. Katha = Square Centimeter ÷ 1,264,642.632 (Bihar state standard) · reverse Square Centimeter = Katha × 1,264,642.632
1,361.25 square feet either way, so the Square Centimeter to Biswa figures apply unchanged. What differs between the two is the record each word belongs to, not the size.
Every definition as a factor. Multiply square centimetre by the figure shown.
| Katha definition | Where | Katha per square centimetre |
|---|---|---|
| Bihar state standard (the definition used here) | Patna, Arrah | 0.000000791 |
| West Bengal / Jharkhand | Rural West Bengal, Ranchi | 0.00000149 |
| Assam | Assam (except Barak Valley) | 0.000000374 |
| Bihar (Chhapra) | Saran | 0.000000618 |
| Bihar (Hajipur) | Vaishali | 0.000000566 |
| Bihar (Bettiah) | West Champaran | 0.000000329 |
1 square centimetre = 0.00000395 marla on the Standard (66-inch karam) definition; 0.00000478 on the Majha belt (60-inch karam) definition · 0.00000521 on the Doaba belt (57.5-inch karam) definition · 0.00000591 on the Kapurthala belt (54-inch karam) definition · 0.00000478 on the HSVP urban estate definition. Marla = Square Centimeter ÷ 252,928.5264 (Standard (66-inch karam)) · reverse Square Centimeter = Marla × 252,928.5264
| Square Centimeter | Marla (Standard (66-inch karam)) |
|---|---|
| 1 | 0.00000395 |
| 2 | 0.00000791 |
| 3 | 0.0000119 |
| 5 | 0.0000198 |
| 10 | 0.0000395 |
| 20 | 0.0000791 |
| 50 | 0.000198 |
| 100 | 0.000395 |
| 200 | 0.000791 |
| 500 | 0.001977 |
| 1,000 | 0.003954 |
Every definition as a factor. Multiply square centimetre by the figure shown.
| Marla definition | Where | Marla per square centimetre |
|---|---|---|
| Standard (66-inch karam) (the definition used here) | Most of Punjab, Haryana, Himachal, J&K | 0.00000395 |
| Majha belt (60-inch karam); reported, not sourced | Amritsar, Gurdaspur, Tarn Taran | 0.00000478 |
| Doaba belt (57.5-inch karam); reported, not sourced | Jalandhar, Kapurthala and Hoshiarpur, and Kangra in Himachal | 0.00000521 |
| Kapurthala belt (54-inch karam); reported, not sourced | Parts of Kapurthala | 0.00000591 |
| HSVP urban estate | Haryana urban estates | 0.00000478 |
1 square centimetre = 0.000000000988 murabba on the Punjab canal colony definition; 0.00000000158 on the Rajasthan (Indira Gandhi Canal) definition. Murabba = Square Centimeter ÷ 1,011,714,105.6 (Punjab canal colony) · reverse Square Centimeter = Murabba × 1,011,714,105.6
| Square Centimeter | Murabba (Punjab canal colony) |
|---|---|
| 1 | 0.000000000988 |
| 2 | 0.00000000198 |
| 3 | 0.00000000297 |
| 5 | 0.00000000494 |
| 10 | 0.00000000988 |
| 20 | 0.0000000198 |
| 50 | 0.0000000494 |
| 100 | 0.0000000988 |
| 200 | 0.000000198 |
| 500 | 0.000000494 |
| 1,000 | 0.000000988 |
Murabba, Rajasthan (Indira Gandhi Canal) (680,625 sq ft):
| Square Centimeter | Murabba (Rajasthan (Indira Gandhi Canal)) |
|---|---|
| 1 | 0.00000000158 |
| 2 | 0.00000000316 |
| 3 | 0.00000000474 |
| 5 | 0.00000000791 |
| 10 | 0.0000000158 |
| 20 | 0.0000000316 |
| 50 | 0.0000000791 |
| 100 | 0.000000158 |
| 200 | 0.000000316 |
| 500 | 0.000000791 |
| 1,000 | 0.00000158 |
1 square centimetre = 0.0000356 square karam on the Standard (66-inch karam) definition; 0.0000431 on the Majha belt (60-inch karam) definition · 0.0000469 on the Doaba belt (57.5-inch karam) definition · 0.0000532 on the Kapurthala belt (54-inch karam) definition. Square Karam = Square Centimeter ÷ 28,103.1696 (Standard (66-inch karam)) · reverse Square Centimeter = Square Karam × 28,103.1696
| Square Centimeter | Square Karam (Standard (66-inch karam)) |
|---|---|
| 1 | 0.0000356 |
| 2 | 0.0000712 |
| 3 | 0.000107 |
| 5 | 0.000178 |
| 10 | 0.000356 |
| 20 | 0.000712 |
| 50 | 0.001779 |
| 100 | 0.003558 |
| 200 | 0.007117 |
| 500 | 0.017792 |
| 1,000 | 0.035583 |
Square Karam, Majha belt (60-inch karam) (25 sq ft):
| Square Centimeter | Square Karam (Majha belt (60-inch karam)) |
|---|---|
| 1 | 0.0000431 |
| 2 | 0.0000861 |
| 3 | 0.000129 |
| 5 | 0.000215 |
| 10 | 0.000431 |
| 20 | 0.000861 |
| 50 | 0.002153 |
| 100 | 0.004306 |
| 200 | 0.008611 |
| 500 | 0.021528 |
| 1,000 | 0.043056 |
Square Karam, Doaba belt (57.5-inch karam) (22.960069 sq ft):
| Square Centimeter | Square Karam (Doaba belt (57.5-inch karam)) |
|---|---|
| 1 | 0.0000469 |
| 2 | 0.0000938 |
| 3 | 0.000141 |
| 5 | 0.000234 |
| 10 | 0.000469 |
| 20 | 0.000938 |
| 50 | 0.002344 |
| 100 | 0.004688 |
| 200 | 0.009376 |
| 500 | 0.023441 |
| 1,000 | 0.046881 |
Square Karam, Kapurthala belt (54-inch karam) (20.25 sq ft):
| Square Centimeter | Square Karam (Kapurthala belt (54-inch karam)) |
|---|---|
| 1 | 0.0000532 |
| 2 | 0.000106 |
| 3 | 0.000159 |
| 5 | 0.000266 |
| 10 | 0.000532 |
| 20 | 0.001063 |
| 50 | 0.002658 |
| 100 | 0.005316 |
| 200 | 0.010631 |
| 500 | 0.026578 |
| 1,000 | 0.053155 |
1 square centimeter = 0.00000247 cent (recurring). Cent = Square Centimeter ÷ 404,685.64224 · reverse Square Centimeter = Cent × 404,685.64224
435.6 square feet either way, so the Square Centimeter to Biswa, Himachal Pradesh figures apply unchanged. What differs between the two is the record each word belongs to, not the size.
1 square centimeter = 0.0000239 chatak (recurring). Chatak = Square Centimeter ÷ 41,806.368 · reverse Square Centimeter = Chatak × 41,806.368
| Square Centimeter | Chatak |
|---|---|
| 1 | 0.0000239 |
| 2 | 0.0000478 |
| 3 | 0.0000718 |
| 5 | 0.000120 |
| 10 | 0.000239 |
| 20 | 0.000478 |
| 50 | 0.001196 |
| 100 | 0.002392 |
| 200 | 0.004784 |
| 500 | 0.01196 |
| 1,000 | 0.02392 |
1 square centimeter = 0.000120 gaj (recurring). Gaj = Square Centimeter ÷ 8,361.2736 · reverse Square Centimeter = Gaj × 8,361.2736
| Square Centimeter | Gaj |
|---|---|
| 1 | 0.000120 |
| 2 | 0.000239 |
| 3 | 0.000359 |
| 5 | 0.000598 |
| 10 | 0.001196 |
| 20 | 0.002392 |
| 50 | 0.00598 |
| 100 | 0.01196 |
| 200 | 0.02392 |
| 500 | 0.0598 |
| 1,000 | 0.119599 |
1 square centimeter = 0.000000448 ground (recurring). Ground = Square Centimeter ÷ 2,229,672.96 · reverse Square Centimeter = Ground × 2,229,672.96
| Square Centimeter | Ground |
|---|---|
| 1 | 0.000000448 |
| 2 | 0.000000897 |
| 3 | 0.00000135 |
| 5 | 0.00000224 |
| 10 | 0.00000448 |
| 20 | 0.00000897 |
| 50 | 0.0000224 |
| 100 | 0.0000448 |
| 200 | 0.0000897 |
| 500 | 0.000224 |
| 1,000 | 0.000448 |
1 square centimeter = 0.000000988 guntha (recurring). Guntha = Square Centimeter ÷ 1,011,714.1056 · reverse Square Centimeter = Guntha × 1,011,714.1056
| Square Centimeter | Guntha |
|---|---|
| 1 | 0.000000988 |
| 2 | 0.00000198 |
| 3 | 0.00000297 |
| 5 | 0.00000494 |
| 10 | 0.00000988 |
| 20 | 0.0000198 |
| 50 | 0.0000494 |
| 100 | 0.0000988 |
| 200 | 0.000198 |
| 500 | 0.000494 |
| 1,000 | 0.000988 |
1 square centimeter = 0.00000747 lessa (recurring). Lessa = Square Centimeter ÷ 133,780.3776 · reverse Square Centimeter = Lessa × 133,780.3776
| Square Centimeter | Lessa |
|---|---|
| 1 | 0.00000747 |
| 2 | 0.0000149 |
| 3 | 0.0000224 |
| 5 | 0.0000374 |
| 10 | 0.0000747 |
| 20 | 0.000149 |
| 50 | 0.000374 |
| 100 | 0.000747 |
| 200 | 0.001495 |
| 500 | 0.003737 |
| 1,000 | 0.007475 |
1 square centimeter = 0.000000498 nali (recurring). Nali = Square Centimeter ÷ 2,006,705.664 · reverse Square Centimeter = Nali × 2,006,705.664
| Square Centimeter | Nali |
|---|---|
| 1 | 0.000000498 |
| 2 | 0.000000997 |
| 3 | 0.00000149 |
| 5 | 0.00000249 |
| 10 | 0.00000498 |
| 20 | 0.00000997 |
| 50 | 0.0000249 |
| 100 | 0.0000498 |
| 200 | 0.0000997 |
| 500 | 0.000249 |
| 1,000 | 0.000498 |
1 square centimeter = 0.0000000187 pura (recurring). Pura = Square Centimeter ÷ 53,512,151.04 · reverse Square Centimeter = Pura × 53,512,151.04
| Square Centimeter | Pura |
|---|---|
| 1 | 0.0000000187 |
| 2 | 0.0000000374 |
| 3 | 0.0000000561 |
| 5 | 0.0000000934 |
| 10 | 0.000000187 |
| 20 | 0.000000374 |
| 50 | 0.000000934 |
| 100 | 0.00000187 |
| 200 | 0.00000374 |
| 500 | 0.00000934 |
| 1,000 | 0.0000187 |
Six of the thirty-two units are two names for one area with another, so their figures are identical to the last digit.
1 square centimetre = 0.00000247 decimal. A decimal and a cent are the same area, 435.6 square feet, so any Square Centimeter figure converts to the same number of either. Decimal = Square Centimeter ÷ 404,685.64224 · reverse Square Centimeter = Decimal × 404,685.64224
1 square centimetre = 0.00000247 dismil. A dismil and a cent are the same area, 435.6 square feet, so any Square Centimeter figure converts to the same number of either. Dismil = Square Centimeter ÷ 404,685.64224 · reverse Square Centimeter = Dismil × 404,685.64224
1 square centimetre = 0.000120 gajam. A gajam and a gaj are the same area, 9 square feet, so any Square Centimeter figure converts to the same number of either. Gajam = Square Centimeter ÷ 8,361.2736 · reverse Square Centimeter = Gajam × 8,361.2736
1 square centimetre = 0.0000000247 killa. A killa and an acre are the same area, 43,560 square feet, so any Square Centimeter figure converts to the same number of either. Killa = Square Centimeter ÷ 40,468,564.224 · reverse Square Centimeter = Killa × 40,468,564.224
1 square centimetre = 0.00000395 perches. A perch and a marla are the same area, 272.25 square feet, so any Square Centimeter figure converts to the same number of either. Perch = Square Centimeter ÷ 252,928.5264 · reverse Square Centimeter = Perch × 252,928.5264
1 square centimetre = 0.000120 square yards. A square yard and a gaj are the same area, 9 square feet, so any Square Centimeter figure converts to the same number of either. Square Yard = Square Centimeter ÷ 8,361.2736 · reverse Square Centimeter = Square Yard × 8,361.2736
The tables above are arithmetic, and for a square centimetre the arithmetic is the easy half. What decides whether the figure you started with is the right one to convert at all is The Reserve Bank Measures a Torn Banknote in Square Centimetres.
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