Perch Converter – Perch to Square Feet, Square Metre, Marla & Acre

Written and fact-checked by Aadil Saif. Arithmetic independently re-verified · Last updated September 2026

Part of the India Land Unit Converter series.

The perch is the only unit in this series that has a founding instrument, an English ordinance of about 1300 that fixes it by name, in a sentence that also fixes the inch, the foot, the yard and the acre. So the historical half of this page rests on a statute rather than on secondary summaries, and Blackstone is cited where he attributes the same words to it. The Indian half rests on counting: the perch is very nearly absent from the Indian legal record, and the identical area under a different name is not, and both are countable. Every arithmetic figure was held as an exact fraction and rounded once, at printing.

The Answer, First

1 perch = 272.25 square feet = 30.25 square yards = 25.29285264 square metres, exactly. 160 perches make an acre.

A perch is a square rod, also called a square pole, and in older documents simply a perch. The rod, pole and perch are three names for one length of 16½ feet, and 16.5 squared is 272.25.

One perch, in	Amount	Where that unit comes from
Roods	0.025	the ordinance, 40 perches to a rood
Acres	0.00625	the ordinance, 40 by 4
Standard marla	1	the Punjab karam chain
Square feet	272.25	the rod, squared
Square yards	30.25	the yard the ordinance also fixes
Square metres	25.29285264	the defined yard of 1959

Popular Perch Conversions

Perch	Square Feet	Square Yard	Marla (Standard)	Acre	Hectare
1	272.25	30.25	1	0.00625	0.002529285264
2	544.5	60.5	2	0.0125	0.005058570528
3	816.75	90.75	3	0.01875	0.007587855792
5	1,361.25	151.25	5	0.03125	0.01264642632
10	2,722.5	302.5	10	0.0625	0.02529285264
20	5,445	605	20	0.125	0.05058570528
50	13,612.5	1,512.5	50	0.3125	0.1264642632
100	27,225	3,025	100	0.625	0.2529285264
200	54,450	6,050	200	1.25	0.5058570528
500	136,125	15,125	500	3.125	1.264642632
1,000	272,250	30,250	1,000	6.25	2.529285264

Two things follow that are not on any converter. The perch is not derived from the acre. The acre is derived from the perch, and the ordinance that says so is still on the books as a statute of uncertain date. And the perch is alive in Indian land records under a different name: a standard Punjab marla is one square perch, exactly, and the two chains reach the same rod from opposite ends.

Contents

Convert The answer, first · To square feet, yards and metres · The English ladder · The small units

Understand The statute that defines it · Two rods, one length · Where the perch actually survives · Three mistakes

Act How to read an A-R-P figure · Where a perch is still the working unit

Check 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 · Pura · Square Centimeter · 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.

Perch to Other Units – Quick Conversion Formula

Every factor is a perch's own size, 272.25 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
Perch to Acre	Perch × 0.00625	Exact
Perch to Ankanam	Perch × 3.78125	Exact · Ankanam is regional. This row is the Standard; also 7.5625
Perch to Ares	Perch × 0.2529285264	Exact
Perch to Bigha	Perch × 0.0125	Exact · Bigha is regional. This row is the Punjab / west Haryana; also 0.01, 0.03, 0.04 and 5 more
Perch to Biswa	Perch × 0.6	Exact · Biswa is regional. This row is the Punjab / Haryana old records; also 0.2, 0.3125, 0.625
Perch to Biswa Kacha	Perch × 0.6	Exact · Biswa Kacha is regional. This row is the Punjab / Haryana revenue; also 0.3125
Perch to Cent	Perch × 0.625	Exact
Perch to Chatak	Perch × 6.05	Exact
Perch to Decimal	Perch × 0.625	Exact
Perch to Dhur	Perch × 4	Exact · Dhur is regional. This row is the Bihar / Jharkhand (Patna chain); also 75.625
Perch to Dismil	Perch × 0.625	Exact
Perch to Gaj	Perch × 30.25	Exact
Perch to Gajam	Perch × 30.25	Exact
Perch to Ground	Perch × 0.1134375	Exact
Perch to Guntha	Perch × 0.25	Exact
Perch to Hectare	Perch × 0.002529285264	Exact
Perch to Kanal	Perch × 0.05	Exact · Kanal is regional. This row is the Standard (66-inch karam); also 0.0605, 0.065875, 0.074691
Perch to Katha	Perch × 0.2	Exact · Katha is regional. This row is the Bihar state standard; also 0.378125, 0.09453125, 0.15625 and 2 more
Perch to Killa	Perch × 0.00625	Exact
Perch to Lessa	Perch × 1.890625	Exact
Perch to Marla	Perch × 1	Exact · Marla is regional. This row is the Standard (66-inch karam); also 1.21, 1.317505, 1.493827 and 1 more
Perch to Murabba	Perch × 0.00025	Exact · Murabba is regional. This row is the Punjab canal colony; also 0.0004
Perch to Nali	Perch × 121/960	Recurring
Perch to Pura	Perch × 0.0047265625	Exact
Perch to Square Centimeter	Perch × 252,928.5264	Exact
Perch to Square Feet	Perch × 272.25	Exact
Perch to Square Inch	Perch × 39,204	Exact
Perch to Square Karam	Perch × 9	Exact · Square Karam is regional. This row is the Standard (66-inch karam); also 10.89, 11.857543, 13.444444
Perch to Square Kilometer	Perch × 0.00002529285264	Exact
Perch to Square Meter	Perch × 25.29285264	Exact
Perch to Square Mile	Perch × 0.000009765625	Exact
Perch to Square Yard	Perch × 30.25	Exact

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The Statute That Defines It

Most traditional land units in this series have no defining instrument. The bigha has an Ain describing it, the marla has a stamp rule naming it, the gajam has nothing at all. The perch is the exception: it is defined, by name, in an ordinance.

The Composition of Yards and Perches (Compositio Ulnarum et Perticarum, also called the Statute of Ells and Perches) is an English ordinance of uncertain date, placed between about 1266 and 1303 and printed among the statutes of uncertain date. It reads, in the received English rendering:

"It is ordained that 3 grains of barley dry and round do make an inch, 12 inches make 1 foot, 3 feet make 1 yard, 5 yards and a half make a perch, and 40 perches in length and 4 in breadth make an acre."

That single sentence is the whole English land-measurement system, and the perch is the hinge of it.

What the ordinance says	The length it fixes	In inches	In feet
"3 grains of barley dry and round do make an inch"	1 inch	1	one twelfth
"12 inches make 1 foot"	1 foot	12	1
"3 feet make 1 yard"	1 yard	36	3
"5 yards and a half make a perch"	1 perch (rod)	198	16.5
"40 perches in length and 4 in breadth make an acre"	1 acre	n/a	43,560 sq ft

Blackstone attributes the same chain to the same statute in the Commentaries, giving the perch as "five yards and an half" and the inch as three barleycorns, and noting that the yard standard itself was set earlier, by Henry I, to the length of his own arm. So the perch has something no other unit here has: a legal authority naming the ordinance that fixes it.

Read the last line again

"40 perches in length and 4 in breadth make an acre."

The acre is not defined in feet. It is defined as a count of perches (forty by four, which is 160), and the square-foot figure everybody quotes, 43,560, is a consequence of that count rather than the definition of it. That is why 43,560 looks arbitrary: it is what you get when you square a rod of sixteen and a half feet and take a hundred and sixty of them.

So the perch is the generator and the acre is the product, which is the reverse of how every modern converter presents the pair. The acre's own history is set out separately; this is the sentence underneath it.

The acre those two numbers describe is long and thin rather than square, because it was a furlong of ploughing by a chain of width, forty rods by four.

The barley grain

One detail is worth a moment because it recurs somewhere unexpected. The ordinance does not begin with the inch, it begins with three grains of barley, dry and round, and builds the inch out of them. A measuring system with no physical prototype has to start somewhere reproducible, and a barley grain was what a thirteenth-century English clerk could ask any two people to agree on.

Four thousand miles away and three centuries later, the Ain-i-Akbari does the same thing: its tassuj is defined as six, seven or eight barley-corns placed breadthways, depending on which gaz is being described. Two systems that never met, both bottoming out in barley. The Mughal chain is set out with the gaj; the point here is only that the coincidence is real and neither system had a better option.

Two Rods, One Length

Here is the fact that makes this page useful to an Indian reader rather than a curiosity.

	The English rod	The Punjab karam
Length	198 in · 16.5 ft	66 in · 5.5 ft
Three of them	n/a	198 in · 16.5 ft
Its square	272.25 sq ft, a perch	30.25 sq ft, a sarsahi
Nine of that square	n/a	272.25 sq ft, a marla
To the acre	160	160

The English rod is 198 inches. Three Punjab karams are 198 inches. Not approximately: exactly, because the standard karam is 66 inches and three sixty-sixes are a hundred and ninety-eight.

Square that and the two systems land on the same area from opposite directions. The English square the rod once and call it a perch. The Punjab system squares the karam once and calls it a sarsahi, then takes nine of them (a three-by-three square of karams, which is a rod square), and calls that a marla. Same 272.25 square feet, reached by two different routes, and 160 of either make an acre.

Is that a coincidence?

Almost certainly not, and this page will not pretend to know more than it does. What can be said with confidence is arithmetic: the coincidence is exact, not approximate, and exact coincidences between measuring systems are usually inherited rather than accidental. What cannot be said is by what route the 66-inch karam and the 16½-foot rod came to agree. This series has not been able to reach an instrument stating any karam length at all (the Marla page records that, and the square karam is the unit that owes the answer), so the honest position is that the identity is certain and its history is not established here.

What follows from it is practical either way. A Punjab jamabandi written in marla and a Sri Lankan title written in perches are stating areas in the same unit. A reader who knows one knows the other, with no conversion factor to remember and no rounding to introduce.

The one qualification

The identity holds at the 66-inch karam, which is the standard one, Malwa and urban Punjab and Haryana. In the three other belts the marla is smaller and the identity fails: a Majha marla is 225 square feet against the perch's 272.25, and it takes 193.6 of them to make an acre rather than 160. The belts are set out with the marla, and this series states plainly that it could not source their lengths.

So the correct sentence is "the standard marla is a perch", and any statement that drops the qualifier is one belt's truth stated as four belts' truth.

Where the Perch Actually Survives

The perch is not much used in India, and this page can put a number on how little.

Search	Documents	What it shows
"perches of land"	0	the phrase does not occur
"roods" "perches"	5	one clear land usage, from 1936
"per marla" with "per square yard"	93	the same area, alive, under a Punjabi name
"sarsahi"	235	its ninth part, also alive

What the counts show

The phrase "perches of land" does not occur in the Indian legal corpus at all. Not rarely: not once, in a full-text search of the whole judgments corpus run in September 2026.

Searching for the classic English triple, acres, roods and perches, returns five documents, and only one of them is clearly a land measurement: D. Kondal Rao Naidu and another v. Dhanakoti Ammal, Madras High Court, 6 October 1936: "purchase there was found to be only 2 acres 1 rood 12 perches". The other four are service matters before administrative tribunals where the word appears for other reasons.

Ninety years, one clear instance, and it is from before independence. The perch reached Indian records through Anglo-Indian survey practice and left with it.

Now set that against the same area under its Indian name. Ninety-three documents pair a per-marla figure with a per-square-yard figure; two hundred and thirty-five contain sarsahi, the marla's ninth part. The unit is not obsolete in India. Its English name is.

A note on the sibling pages, and what this confirms

The Acre page records that it could not verify current Indian use of the perch and declined to assert any. That finding is confirmed here and sharpened: it is not merely unverified, it is measurably absent, with the single clear instance dated and named. What that page also says, that a marla and a perch are the same unit, is right in substance and is qualified above: it holds at the standard karam and not in the other three belts.

Where the perch is genuinely current is Sri Lanka, where it is the working unit of residential property and the one a listing is quoted in, and Jamaica, where it survives in government survey. This series has not reached a Sri Lankan instrument stating it, so that is recorded here as reported rather than sourced, the same standard applied to the karam lengths.

The rood went too

The same story one rung up. A rood is forty perches, a quarter of an acre, and it was the middle unit of every English land description for six hundred years. It is now essentially gone from Indian records as well: the same five-document search that finds one land usage of perches finds one of roods, in the same 1936 judgment. What that means for anyone holding an old deed is set out in how to read an A-R-P figure.

Why it left here and stayed there

This is inference rather than evidence, and it is offered as such. Two accounts fit the counts. The first: India already had names for this area before the English arrived and kept them (the marla in the north, the cent and the guntha further south, all of which divide the acre cleanly), so the perch had nothing to displace and nothing to defend. The second, simpler: India metricated its land records from 1956 and Sri Lanka's residential market never followed, so the English units went where the English record-keeping went.

They are not exclusive and this page cannot choose between them. What the counts do establish, and this part is not inference, is that the area did not go anywhere. Only the word did.

How to Read an A-R-P Figure

Older deeds (Anglo-Indian, British, Sri Lankan) state an area as three numbers, and a reader meeting the notation for the first time usually mistakes it for something else.

"2-1-12" is two acres, one rood, twelve perches. Not a date, not a decimal. It comes to 2.325 acres, or 101,277 square feet.

The three positions are always acres, roods and perches, in that order and never abbreviated differently. Two rules make the notation self-checking:

• The middle number never exceeds 3, because four roods make an acre and a fourth would have been carried.
• The last number never exceeds 39, because forty perches make a rood.

So a figure whose second position is 4 or more is not this notation, and a figure whose third position is 40 or more has been written by somebody who did not know it. That is worth knowing before you convert: a deed reading "2-1-12" read as a decimal gives 2.112 acres, which understates the plot by about a fifth of an acre, a shade over nine thousand square feet.

To convert, multiply out and add: acres × 43,560, plus roods × 10,890, plus perches × 272.25.

Where a Perch Is Still the Working Unit

Everything above is about a unit that has left the Indian record. It has not left everywhere, and this section is for the reader who is holding a live document rather than an old one.

Sri Lanka is where the perch is the ordinary unit of residential property. A plot is advertised, negotiated and sold in perches; the acre and the rood survive above it for larger and rural parcels; and the A-R-P notation above is the one a title deed still uses. Jamaica retains it in government survey.

For a reader in either place the useful figures are the ones above, read in the other direction: a perch is 272.25 square feet or 25.29285264 square metres, forty make a rood and a hundred and sixty an acre. A residential plot quoted at ten perches is 2,722.5 square feet; at twenty, 5,445.

This series has not reached an instrument from either country, and says so rather than dressing reported practice as sourced fact, the same standard applied to the Punjab karam lengths on the Marla page. What is stated here as sourced is the ordinance and the arithmetic; what is stated as reported is where the unit is still used.

The English Ladder

Every unit above the perch in the English system is a count of perches with a shape attached.

Unit	Square feet	In perches	Its shape in rods
Perch (square rod, square pole)	272.25	1	1 × 1
Rood	10,890	40	40 × 1
Square chain	4,356	16	4 × 4
Acre	43,560	160	40 × 4

Read the last column. A rood is forty perches in a line; an acre is that line four deep. The shape is not decorative. It is what the ordinance says, and it is why an acre is long and thin rather than square. A square acre is 208.71 feet on a side and no traditional English field was laid out that way; the acre was a furlong of ploughing by a chain of width, which is the strip a team could work without turning too often.

The square chain is in the table because it is the bridge to everything metric-adjacent: ten square chains make an acre, a chain is four rods, and the chain is where the surveyor's tape and the ploughman's furrow agree. The Square Yard page works through why so many Indian units turn out to be whole numbers of square yards, and the twenty-two-yard chain is the reason.

Perch to Square Feet, Yards and Metres

Perches	Square feet	Square yards	Square metres	Roods	Acres
1	272.25	30.25	25.2929	0.025	0.00625
2	544.5	60.5	50.5857	0.05	0.0125
5	1,361.25	151.25	126.4643	0.125	0.03125
10	2,722.5	302.5	252.9285	0.25	0.0625
15	4,083.75	453.75	379.3928	0.375	0.09375
20	5,445	605	505.8571	0.5	0.125
25	6,806.25	756.25	632.3213	0.625	0.15625
40	10,890	1,210	1,011.7141	1	0.25
50	13,612.5	1,512.5	1,264.6426	1.25	0.3125
80	21,780	2,420	2,023.4282	2	0.5
100	27,225	3,025	2,529.2853	2.5	0.625
120	32,670	3,630	3,035.1423	3	0.75
160	43,560	4,840	4,046.8564	4	1
200	54,450	6,050	5,058.5705	5	1.25
320	87,120	9,680	8,093.7128	8	2

Three rows are worth remembering. Forty perches is a rood. A hundred and sixty is an acre. One perch is 272.25 square feet, which is also one standard marla.

Every row terminates in square feet and square yards, and every row terminates in square metres too. The perch is 1089/4 square feet, and a denominator of 4 cannot resist the decimal system. What does not terminate is the reverse direction, and the Square Metre page sets out why.

The Small Units

Down to	One perch comes to	Does it stop?
Square inch	39,204	Yes
Square foot	272.25	Yes
Square yard	30.25	Yes
Square metre	25.29285264	Yes
Are	0.2529285264	Yes

Four Mistakes That Change the Answer

1. Treating the perch as a length. A perch is an area, a square rod. The rod itself is the length, 16½ feet, and in older documents "perch" is sometimes used for the rod as well, which is why a figure quoted in perches beside a boundary description needs reading twice. If it describes a frontage it is a length; if it describes a plot it is an area.

2. Assuming any marla is a perch. The standard one is, exactly. The Majha, Doaba and Kapurthala marla are not, and the difference reaches a third at the small end. The Marla page sets out the belts.

3. Converting through the acre when you could convert through the rod. A perch is a square rod and 160 make an acre; both figures are exact whole numbers, so a chain of conversions that passes through 43,560 square feet and back introduces nothing. Any answer that comes out with a stray decimal has been through a rounded factor somewhere, most often a square-metre value truncated to four places.

4. Reading an old A-R-P figure as a decimal. "2-1-12" in a pre-independence deed is two acres, one rood and twelve perches, 2.325 acres, and reading it as 2.112 acres understates the plot by about a fifth of an acre. The tell is that the middle number never exceeds 3.

Frequently Asked Questions

How many square feet in a perch? 272.25, exactly, the square of a rod of 16½ feet.

Is a perch the same as a marla? The standard Punjab and Haryana marla is one square perch exactly, and 160 of either make an acre. In the Majha, Doaba and Kapurthala belts the marla is smaller and the identity does not hold.

How many perches in an acre? 160, exactly. The defining ordinance puts it as "40 perches in length and 4 in breadth".

What is a rood? Forty perches, a quarter of an acre, 10,890 square feet. It is the middle rung of the English ladder and it has almost entirely fallen out of use.

What is a rod, a pole and a perch? Three names for the same length, 16½ feet or 5½ yards. The area is properly a square rod, pole or perch, and in practice "perch" alone is used for the area.

Is the perch used in India? Almost not at all. A full-text search of the Indian judgments corpus returns no occurrence of "perches of land", and the one clear use of acres-roods-perches is a Madras High Court judgment from 1936. The same area is in daily use as the marla.

Where is the perch still official? Sri Lanka, where residential property is quoted in perches, and Jamaica, where it survives in government survey. This series has not reached an instrument from either, so both are recorded as reported rather than sourced.

How many square metres in a perch? 25.29285264, exactly. Going back the other way does not terminate.

What does "2-1-12" mean in an old title deed? Two acres, one rood, twelve perches, 2.325 acres, or 101,277 square feet. Acres, roods and perches in that order; the middle figure never exceeds 3 and the last never exceeds 39.

Why is an acre 43,560 square feet? Because it is 160 square rods and a rod is 16½ feet. The ordinance defines the acre as forty perches by four, so the square-foot figure is the consequence rather than the definition.

Is a perch a length or an area? An area: the square of the rod. The rod, pole or perch as a length is 16½ feet, and older documents sometimes use the bare word for that, which is worth watching for in boundary descriptions.

Sources and Method

What each figure rests on

Statement	Source
"3 grains of barley … 5 yards and a half make a perch, and 40 perches in length and 4 in breadth make an acre"	Compositio Ulnarum et Perticarum, English ordinance of uncertain date, c. 1266–1303
"five yards and an half make a perch"; the barleycorn inch; the yard set to Henry I's arm	Blackstone, Commentaries, i. 264–68, attributing the chain to that statute
"purchase there was found to be only 2 acres 1 rood 12 perches"	Madras High Court, D. Kondal Rao Naidu and another v. Dhanakoti Ammal, 6 October 1936
The four counts, 0, 5, 93 and 235	Full-text searches of Indian Kanoon run in September 2026, counting documents rather than decisions
The karam at 66 inches, and the other three belts	Reported, not sourced; see the Marla page, which carries the series' non-assertion
Marla, sarsahi and acre sizes	Each unit's own page in this series
Sri Lankan and Jamaican usage	Reported; no instrument from either reached

What we looked for and did not find

1. Any Indian instrument using the perch. None; "perches of land" does not occur in the corpus.
2. Any post-independence Indian judgment stating an area in perches. None; the clear instance is from 1936.
3. Any account of how the karam and the rod came to agree. The identity is exact; its history is not established here.
4. A Sri Lankan or Jamaican instrument fixing the perch. Not reached, so both are marked as reported.

Method

One stored value carries the arithmetic: the perch at 1089/4 square feet, the square of 33/2 feet. Every other figure is derived from it as a ratio of whole numbers, rounded once at printing.

The control here is historical rather than arithmetical. The ordinance's chain (barleycorn, inch, foot, yard, perch, acre) is walked step by step in a table whose columns are computed from the previous row rather than typed, so the page cannot state the statute's arithmetic and its own differently. The script also recomputes the two-rod identity from each rod independently and fails if 3 × 66 inches stops equalling 16½ feet.

On the sibling pages

This is the only unit in the series that is not Indian, and it earns a page because the area it names is. What belongs here is the ordinance and the identity: where the number was fixed, and how an English rod and a Punjab one came to be the same length. What belongs elsewhere: the same area under its Indian name, and the two figures the courts write for it, are the Marla page's subject; the sarsahi and the unresolved karam length are the Square Karam page's; and the acre's own history, together with the ladder both systems climb, is on the Acre page. All three are cited above and none is restated.

Perch Conversion Quick Reference

Conversion	1 Perch	Note
Acre	0.00625	Exact; Exact by definition: 43,560 sq ft = 4,840 sq yd
Ankanam	3.78125 (Standard)	Region-specific; also 7.5625 (Tirupati)
Ares	0.2529285264	Exact; 100 m², the metric are
Bigha	0.0125 (Punjab / west Haryana)	Region-specific; also 0.01 (UP pucca / Bihar / Rajasthan pucca) · 0.03 (UP kachha (6⅔ biswa)) · 0.04 (UP kachha (5 biswa) / Uttarakhand hills)
Biswa	0.6 (Punjab / Haryana old records)	Region-specific; also 0.2 (UP / Rajasthan pucca) · 0.3125 (Rajasthan kachha) · 0.625 (Himachal Pradesh)
Biswa Kacha	0.6 (Punjab / Haryana revenue definition)	Region-specific; also 0.3125 (Rajasthan kachha reading)
Cent	0.625	Exact; One hundredth of an acre, exactly
Chatak	6.05	Exact; 5 sq yd exactly; 16 to the cottah, 968 to the acre. Reported, not stated by any instrument located
Decimal	0.625	Exact; One hundredth of an acre, exactly
Dhur	4 (Bihar / Jharkhand (Patna chain))	Region-specific; also 75.625 (Tripura)
Dismil	0.625	Exact; The decimal under another name
Gaj	30.25	Exact; The square yard, 9 sq ft
Gajam	30.25	Exact; The square yard in Telugu, 9 sq ft
Ground	0.1134375	Exact; 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	0.25	Exact; 121 sq yd; 40 guntha = 1 acre exactly
Hectare	0.002529285264	Exact; 10,000 m² exactly
Kanal	0.05 (Standard (66-inch karam))	Region-specific; also 0.0605 (Majha belt (60-inch karam)) · 0.065875 (Doaba belt (57.5-inch karam)) · 0.074691 (Kapurthala belt (54-inch karam))
Katha	0.2 (Bihar state standard)	Region-specific; also 0.378125 (West Bengal / Jharkhand) · 0.09453125 (Assam) · 0.15625 (Bihar (Chhapra))
Killa	0.00625	Exact; The acre under its Punjabi name
Lessa	1.890625	Exact; The 12-foot mauzadari jar squared (Assam Land Records Manual r.117); 20 to a katha, 100 to a bigha
Marla	1 (Standard (66-inch karam))	Region-specific; also 1.21 (Majha belt (60-inch karam)) · 1.317505 (Doaba belt (57.5-inch karam)) · 1.493827 (Kapurthala belt (54-inch karam))
Murabba	0.00025 (Punjab canal colony)	Region-specific; also 0.0004 (Rajasthan (Indira Gandhi Canal))
Nali	0.126042	Recurring; 240 sq yd; 16 mutthi of 135 sq ft. No instrument located states the figure
Pura	0.0047265625	Exact; 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 Centimeter	252,928.5264	Exact; One ten-thousandth of a square metre
Square Feet	272.25	Exact; The base of this series
Square Inch	39,204	Exact; One 144th of a square foot
Square Karam	9 (Standard (66-inch karam))	Region-specific; also 10.89 (Majha belt (60-inch karam)) · 11.857543 (Doaba belt (57.5-inch karam)) · 13.444444 (Kapurthala belt (54-inch karam))
Square Kilometer	0.00002529285264	Exact; 1,000,000 m²
Square Meter	25.29285264	Exact; The SI unit of area
Square Mile	0.000009765625	Exact; 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	30.25	Exact; 9 sq ft exactly

---

Perch to Acre

1 perch = 0.00625 acres, exact. An acre is exact by definition: 43,560 sq ft = 4,840 sq yd.

Computed on the perch of 272.25 square feet, which this series grades reported, not sourced: no instrument, judgment or manual located states that figure.

160 perches to the acre, from the medieval statute that defines both: '40 perches in length and 4 in breadth make an acre.'

Perch to Acre Formula

Acre = Perch × 0.00625

Popular Perch to Acre Conversions

Perch	Acre
1	0.00625
2	0.0125
3	0.01875
5	0.03125
10	0.0625
20	0.125
50	0.3125
100	0.625
200	1.25
500	3.125
1,000	6.25

Worked Example

5 perches × 0.00625 = 0.03125 acres

Reverse Conversion: Acre to Perch

Perch = Acre × 160

---

Perch to Guntha

1 perch = 0.25 gunthas, exact. A guntha is 121 sq yd; 40 guntha = 1 acre exactly.

Computed on the perch of 272.25 square feet, which this series grades reported, not sourced: no instrument, judgment or manual located states that figure.

A perch is exactly a quarter of a guntha, 272.25 × 4 = 1,089. Two units from opposite ends of the country and of the colonial record, meeting on a whole number, because both were laid out against the same 66-foot chain.

Perch to Guntha Formula

Guntha = Perch × 0.25

Popular Perch to Guntha Conversions

Perch	Guntha
1	0.25
2	0.5
3	0.75
5	1.25
10	2.5
20	5
50	12.5
100	25
200	50
500	125
1,000	250

Worked Example

5 perches × 0.25 = 1.25 gunthas

Reverse Conversion: Guntha to Perch

Perch = Guntha × 4

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Perch to Hectare

1 perch = 0.002529285264 hectares, exact. A hectare is 10,000 m² exactly.

Computed on the perch of 272.25 square feet, which this series grades reported, not sourced: no instrument, judgment or manual located states that figure.

39.536… perches to the hectare, recurring. The perch survives in Indian records mainly in pre-independence A-R-P figures, where the metric equivalent was added later by conversion rather than by measurement.

The ratio is the fraction 158,080,329/62,500,000,000, or 0.002529285264 exactly.

Perch to Hectare Formula

Hectare = Perch × 0.002529285264

Popular Perch to Hectare Conversions

Perch	Hectare
1	0.002529285264
2	0.005058570528
3	0.007587855792
5	0.01264642632
10	0.02529285264
20	0.05058570528
50	0.1264642632
100	0.2529285264
200	0.5058570528
500	1.264642632
1,000	2.529285264

Worked Example

5 perches × 0.002529285264 = 0.01264642632 hectares

Reverse Conversion: Hectare to Perch

Perch = Hectare ÷ 0.002529285264

---

Perch to Kanal

1 perch = 0.05 kanal on the Standard (66-inch karam) definition. The kanal has no single national value. It is also 0.0605 (Majha belt (60-inch karam)) · 0.065875 (Doaba belt (57.5-inch karam)) · 0.074691 (Kapurthala belt (54-inch karam)) per perch. Every definition this series has located is set out with the evidence behind it.

Computed on the perch of 272.25 square feet, which this series grades reported, not sourced: no instrument, judgment or manual located states that figure.

Twenty perches to the kanal on the standard karam, because a kanal is twenty marla and a marla is a perch. The Punjab record never says perch, but a pre-independence deed for the same land may, and the two figures reconcile exactly on that belt and on no other.

Perch to Kanal Formula

Kanal = Perch × 0.05 (Standard (66-inch karam))

Popular Perch to Kanal Conversions

Perch	Kanal (Standard (66-inch karam))
1	0.05
2	0.1
3	0.15
5	0.25
10	0.5
20	1
50	2.5
100	5
200	10
500	25
1,000	50

Kanal by Region

Kanal definition	Where it applies	1 kanal in sq ft	Kanal per perch	Terminates?	Evidence
Standard (66-inch karam) (the definition used here)	Most of Punjab, Haryana, Himachal, J&K	5,445	0.05	Exact	sourced
Majha belt (60-inch karam)	Amritsar, Gurdaspur, Tarn Taran	4,500	0.0605	Exact	reported, not sourced
Doaba belt (57.5-inch karam)	Jalandhar, Kapurthala and Hoshiarpur, and Kangra in Himachal	4,132.8125	0.065875	Recurring	reported, not sourced
Kapurthala belt (54-inch karam)	Parts of Kapurthala	3,645	0.074691	Recurring	reported, not sourced

Not every definition above rests on an instrument. 3 of the 4 are marked reported or no instrument located: in circulation and internally consistent, but this series could not find a rule, manual or judgment stating them. What was searched for each is recorded with that unit. Terminates? answers only whether the ratio has a finite decimal, not whether the figure behind it is verified.

Popular Perch to Kanal, Majha belt (60-inch karam)

Perch	Kanal (4,500 sq ft)
1	0.0605
2	0.121
3	0.1815
5	0.3025
10	0.605
20	1.21
50	3.025
100	6.05
200	12.1
500	30.25
1,000	60.5

Popular Perch to Kanal, Doaba belt (57.5-inch karam)

Perch	Kanal (4,132.8125 sq ft)
1	0.065875
2	0.13175
3	0.197626
5	0.329376
10	0.658752
20	1.317505
50	3.293762
100	6.587524
200	13.175047
500	32.937618
1,000	65.875236

Popular Perch to Kanal, Kapurthala belt (54-inch karam)

Perch	Kanal (3,645 sq ft)
1	0.074691
2	0.149383
3	0.224074
5	0.373457
10	0.746914
20	1.493827
50	3.734568
100	7.469136
200	14.938272
500	37.345679
1,000	74.691358

Worked Example

5 perches × 0.05 = 0.25 kanal

Reverse Conversion: Kanal to Perch

Perch = Kanal × 20 (Standard (66-inch karam))

Perch = Kanal ÷ 0.0605 (Majha belt (60-inch karam)) Perch = Kanal × 66,125/4,356 (Doaba belt (57.5-inch karam)) Perch = Kanal × 1,620/121 (Kapurthala belt (54-inch karam))

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Perch to Marla

1 perch = 1 marla on the Standard (66-inch karam) definition. The marla has no single national value. It is also 1.21 (Majha belt (60-inch karam)) · 1.317505 (Doaba belt (57.5-inch karam)) · 1.493827 (Kapurthala belt (54-inch karam)) and 1 more per perch. Every definition this series has located is set out with the evidence behind it.

Computed on the perch of 272.25 square feet, which this series grades reported, not sourced: no instrument, judgment or manual located states that figure.

The standard marla and the perch are the same area, 272.25 sq ft. Both are 1/160 of an acre, and both descend from the English rod of 16½ feet. The marla reached Punjab through settlement practice and the perch through the Composition of Yards and Perches; they met at the same number by inheritance, not coincidence. This holds for the standard 66-inch karam belt only, in the Majha, Doaba and Kapurthala belts the marla is a different size and the identity breaks.

One perch and one marla are the same area. The two words name one quantity, so no arithmetic is involved.

Perch to Marla Formula

Marla = Perch × 1 (Standard (66-inch karam))

Popular Perch to Marla Conversions

On this definition the two are one area of 272.25 square feet, so any quantity of perch is the same quantity of marla, and the ladder would read 1 to 1 the whole way down.

Marla by Region

Marla definition	Where it applies	1 marla in sq ft	Marla per perch	Terminates?	Evidence
Standard (66-inch karam) (the definition used here)	Most of Punjab, Haryana, Himachal, J&K	272.25	1	Exact	sourced
Majha belt (60-inch karam)	Amritsar, Gurdaspur, Tarn Taran	225	1.21	Exact	reported, not sourced
Doaba belt (57.5-inch karam)	Jalandhar, Kapurthala and Hoshiarpur, and Kangra in Himachal	206.640625	1.317505	Recurring	reported, not sourced
Kapurthala belt (54-inch karam)	Parts of Kapurthala	182.25	1.493827	Recurring	reported, not sourced
HSVP urban estate	Haryana urban estates	225	1.21	Exact	sourced

Not every definition above rests on an instrument. 3 of the 5 are marked reported or no instrument located: in circulation and internally consistent, but this series could not find a rule, manual or judgment stating them. What was searched for each is recorded with that unit. Terminates? answers only whether the ratio has a finite decimal, not whether the figure behind it is verified.

To convert against one of the other definitions, multiply by its factor.

Worked Example

5 perches × 1 = 5 marla

Reverse Conversion: Marla to Perch

Perch = Marla × 1 (Standard (66-inch karam))

Perch = Marla ÷ 1.21 (Majha belt (60-inch karam)) Perch = Marla × 13,225/17,424 (Doaba belt (57.5-inch karam)) Perch = Marla × 81/121 (Kapurthala belt (54-inch karam)) Perch = Marla ÷ 1.21 (HSVP urban estate)

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Perch to Square Feet

1 perch = 272.25 square feet, exact. A square foot is the base of this series.

Computed on the perch of 272.25 square feet, which this series grades reported, not sourced: no instrument, judgment or manual located states that figure.

272.25 square feet to the perch, 30.25 square yards, and the same area as the standard marla. It descends from the rod of 16½ feet: a perch is that rod squared.

Where the square foot fits into the perch's own record is set out in Perch to Square Feet, Yards and Metres above; what follows is the arithmetic.

The ratio is the fraction 1,089/4, or 272.25 exactly.

Perch to Square Feet Formula

Square Feet = Perch × 272.25

Popular Perch to Square Feet Conversions

Perch	Square Feet
1	272.25
2	544.5
3	816.75
5	1,361.25
10	2,722.5
20	5,445
50	13,612.5
100	27,225
200	54,450
500	136,125
1,000	272,250

Worked Example

5 perches × 272.25 = 1,361.25 square feet

Reverse Conversion: Square Feet to Perch

Perch = Square Feet ÷ 272.25

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Perch to Square Meter

1 perch = 25.29285264 square metres, exact. A square metre is the SI unit of area.

Computed on the perch of 272.25 square feet, which this series grades reported, not sourced: no instrument, judgment or manual located states that figure.

A perch is 25.29285264 square metres, exact. Sri Lankan practice, where the perch is the standard small land unit, quotes both.

The ratio is the fraction 158,080,329/6,250,000, or 25.29285264 exactly.

Perch to Square Meter Formula

Square Meter = Perch × 25.29285264

Popular Perch to Square Meter Conversions

Perch	Square Meter
1	25.29285264
2	50.58570528
3	75.87855792
5	126.4642632
10	252.9285264
20	505.8570528
50	1,264.642632
100	2,529.285264
200	5,058.570528
500	12,646.42632
1,000	25,292.85264

Worked Example

5 perches × 25.29285264 = 126.4642632 square metres

Reverse Conversion: Square Meter to Perch

Perch = Square Meter ÷ 25.29285264

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Perch to the Remaining Units

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.

Perch to Biswa Kacha

1 perch = 0.6 biswa kacha on the Punjab / Haryana revenue definition; 0.3125 on the Rajasthan kachha reading definition. Biswa Kacha = Perch × 0.6 (Punjab / Haryana revenue) · reverse Perch = Biswa Kacha ÷ 0.6

Perch	Biswa Kacha (Punjab / Haryana revenue)
1	0.6
2	1.2
3	1.8
5	3
10	6
20	12
50	30
100	60
200	120
500	300
1,000	600

Biswa Kacha, Rajasthan kachha reading (871.2 sq ft):

Perch	Biswa Kacha (Rajasthan kachha reading)
1	0.3125
2	0.625
3	0.9375
5	1.5625
10	3.125
20	6.25
50	15.625
100	31.25
200	62.5
500	156.25
1,000	312.5

Perch to Murabba

1 perch = 0.00025 murabba on the Punjab canal colony definition; 0.0004 on the Rajasthan (Indira Gandhi Canal) definition. Murabba = Perch × 0.00025 (Punjab canal colony) · reverse Perch = Murabba × 4,000

Perch	Murabba (Punjab canal colony)
1	0.00025
2	0.0005
3	0.00075
5	0.00125
10	0.0025
20	0.005
50	0.0125
100	0.025
200	0.05
500	0.125
1,000	0.25

Murabba, Rajasthan (Indira Gandhi Canal) (680,625 sq ft):

Perch	Murabba (Rajasthan (Indira Gandhi Canal))
1	0.0004
2	0.0008
3	0.0012
5	0.002
10	0.004
20	0.008
50	0.02
100	0.04
200	0.08
500	0.2
1,000	0.4

Perch to Square Karam

1 perch = 9 square karam on the Standard (66-inch karam) definition; 10.89 on the Majha belt (60-inch karam) definition · 11.857543 on the Doaba belt (57.5-inch karam) definition · 13.444444 on the Kapurthala belt (54-inch karam) definition. Square Karam = Perch × 9 (Standard (66-inch karam)) · reverse Perch = Square Karam ÷ 9

Perch	Square Karam (Standard (66-inch karam))
1	9
2	18
3	27
5	45
10	90
20	180
50	450
100	900
200	1,800
500	4,500
1,000	9,000

Square Karam, Majha belt (60-inch karam) (25 sq ft):

Perch	Square Karam (Majha belt (60-inch karam))
1	10.89
2	21.78
3	32.67
5	54.45
10	108.9
20	217.8
50	544.5
100	1,089
200	2,178
500	5,445
1,000	10,890

Square Karam, Doaba belt (57.5-inch karam) (22.960069 sq ft):

Perch	Square Karam (Doaba belt (57.5-inch karam))
1	11.857543
2	23.715085
3	35.572628
5	59.287713
10	118.575425
20	237.150851
50	592.877127
100	1,185.754253
200	2,371.508507
500	5,928.771267
1,000	11,857.542533

Square Karam, Kapurthala belt (54-inch karam) (20.25 sq ft):

Perch	Square Karam (Kapurthala belt (54-inch karam))
1	13.444444
2	26.888889
3	40.333333
5	67.222222
10	134.444444
20	268.888889
50	672.222222
100	1,344.444444
200	2,688.888889
500	6,722.222222
1,000	13,444.444444

Perch to Bigha

1 perch = 0.0125 bigha on the Punjab / west Haryana definition; 0.01 on the UP pucca / Bihar / Rajasthan pucca definition · 0.03 on the UP kachha (6⅔ biswa) definition · 0.04 on the UP kachha (5 biswa) / Uttarakhand hills definition · 0.015625 on the Rajasthan kachha / Gujarat vigha / Uttarakhand Terai definition · 0.0226875 on the Madhya Pradesh definition · 0.01890625 on the West Bengal / Assam / Jharkhand definition · 0.03125 on the Himachal Pradesh / Haryana Rohtak belt definition · 0.033611 on the Haryana Ambala belt definition. Bigha = Perch × 0.0125 (Punjab / west Haryana) · reverse Perch = Bigha × 80

Perch	Bigha (Punjab / west Haryana)
1	0.0125
2	0.025
3	0.0375
5	0.0625
10	0.125
20	0.25
50	0.625
100	1.25
200	2.5
500	6.25
1,000	12.5

Every definition as a factor. Multiply perch by the figure shown.

Bigha definition	Where	Bigha per perch
Punjab / west Haryana (the definition used here)	Punjab, kanal belt of Haryana	0.0125
UP pucca / Bihar / Rajasthan pucca	Purvanchal, Awadh, Patna belt, east Rajasthan	0.01
UP kachha (6⅔ biswa)	West Uttar Pradesh	0.03
UP kachha (5 biswa) / Uttarakhand hills	West UP, Kumaon and Garhwal hills	0.04
Rajasthan kachha / Gujarat vigha / Uttarakhand Terai	Marwar, Gujarat, Terai	0.015625
Madhya Pradesh; reported, not sourced	Madhya Pradesh	0.0226875
West Bengal / Assam / Jharkhand	West Bengal, Assam, Ranchi	0.01890625
Himachal Pradesh / Haryana Rohtak belt	Himachal Pradesh, Rohtak, Hisar	0.03125
Haryana Ambala belt	Ambala, Gurugram, Faridabad, Karnal, Panipat	0.033611

Perch to Biswa

1 perch = 0.6 biswa on the Punjab / Haryana old records definition; 0.2 on the UP / Rajasthan pucca definition · 0.3125 on the Rajasthan kachha definition · 0.625 on the Himachal Pradesh definition. Biswa = Perch × 0.6 (Punjab / Haryana old records) · reverse Perch = Biswa ÷ 0.6

453.75 square feet either way, so the Perch to Biswa Kacha figures apply unchanged. What differs between the two is the record each word belongs to, not the size.

Biswa, UP / Rajasthan pucca (1,361.25 sq ft):

Perch	Biswa (UP / Rajasthan pucca)
1	0.2
2	0.4
3	0.6
5	1
10	2
20	4
50	10
100	20
200	40
500	100
1,000	200

Biswa, Rajasthan kachha (871.2 sq ft):

871.2 square feet either way, so the Perch to Biswa Kacha, Rajasthan kachha reading figures apply unchanged. What differs between the two is the record each word belongs to, not the size.

Biswa, Himachal Pradesh (435.6 sq ft):

Perch	Biswa (Himachal Pradesh)
1	0.625
2	1.25
3	1.875
5	3.125
10	6.25
20	12.5
50	31.25
100	62.5
200	125
500	312.5
1,000	625

Perch to Ankanam

1 perch = 3.78125 ankanam on the Standard definition; 7.5625 on the Tirupati definition. Ankanam = Perch × 3.78125 (Standard) · reverse Perch = Ankanam ÷ 3.78125

Perch	Ankanam (Standard)
1	3.78125
2	7.5625
3	11.34375
5	18.90625
10	37.8125
20	75.625
50	189.0625
100	378.125
200	756.25
500	1,890.625
1,000	3,781.25

Every definition as a factor. Multiply perch by the figure shown.

Ankanam definition	Where	Ankanam per perch
Standard (the definition used here)	Andhra Pradesh, Telangana, parts of Karnataka	3.78125
Tirupati	Tirupati and parts of Chittoor	7.5625

Perch to Dhur

1 perch = 4 dhur on the Bihar / Jharkhand (Patna chain) definition; 75.625 on the Tripura definition. Dhur = Perch × 4 (Bihar / Jharkhand (Patna chain)) · reverse Perch = Dhur × 0.25

Perch	Dhur (Bihar / Jharkhand (Patna chain))
1	4
2	8
3	12
5	20
10	40
20	80
50	200
100	400
200	800
500	2,000
1,000	4,000

Every definition as a factor. Multiply perch by the figure shown.

Dhur definition	Where	Dhur per perch
Bihar / Jharkhand (Patna chain) (the definition used here); reported, not sourced	Patna belt, and Jharkhand districts counting in the Patna katha	4
Tripura	Tripura	75.625

Perch to Katha

1 perch = 0.2 katha on the Bihar state standard definition; 0.378125 on the West Bengal / Jharkhand definition · 0.09453125 on the Assam definition · 0.15625 on the Bihar (Chhapra) definition · 0.143195 on the Bihar (Hajipur) definition · 0.083333 on the Bihar (Bettiah) definition. Katha = Perch × 0.2 (Bihar state standard) · reverse Perch = Katha × 5

1,361.25 square feet either way, so the Perch to Biswa, UP / Rajasthan pucca figures apply unchanged. What differs between the two is the record each word belongs to, not the size.

Every definition as a factor. Multiply perch by the figure shown.

Katha definition	Where	Katha per perch
Bihar state standard (the definition used here)	Patna, Arrah	0.2
West Bengal / Jharkhand	Rural West Bengal, Ranchi	0.378125
Assam	Assam (except Barak Valley)	0.09453125
Bihar (Chhapra)	Saran	0.15625
Bihar (Hajipur)	Vaishali	0.143195
Bihar (Bettiah)	West Champaran	0.083333

Perch to Ares

1 perch = 0.2529285264 ares (exact). Ares = Perch × 0.2529285264 · reverse Perch = Ares ÷ 0.2529285264

Perch	Ares
1	0.2529285264
2	0.5058570528
3	0.7587855792
5	1.264642632
10	2.529285264
20	5.058570528
50	12.64642632
100	25.29285264
200	50.58570528
500	126.4642632
1,000	252.9285264

Perch to Cent

1 perch = 0.625 cent (exact). Cent = Perch × 0.625 · reverse Perch = Cent × 1.6

435.6 square feet either way, so the Perch to Biswa, Himachal Pradesh figures apply unchanged. What differs between the two is the record each word belongs to, not the size.

Perch to Chatak

1 perch = 6.05 chatak (exact). Chatak = Perch × 6.05 · reverse Perch = Chatak ÷ 6.05

Perch	Chatak
1	6.05
2	12.1
3	18.15
5	30.25
10	60.5
20	121
50	302.5
100	605
200	1,210
500	3,025
1,000	6,050

Perch to Gaj

1 perch = 30.25 gaj (exact). Gaj = Perch × 30.25 · reverse Perch = Gaj ÷ 30.25

Perch	Gaj
1	30.25
2	60.5
3	90.75
5	151.25
10	302.5
20	605
50	1,512.5
100	3,025
200	6,050
500	15,125
1,000	30,250

Perch to Ground

1 perch = 0.1134375 ground (exact). Ground = Perch × 0.1134375 · reverse Perch = Ground ÷ 0.1134375

Perch	Ground
1	0.1134375
2	0.226875
3	0.3403125
5	0.5671875
10	1.134375
20	2.26875
50	5.671875
100	11.34375
200	22.6875
500	56.71875
1,000	113.4375

Perch to Lessa

1 perch = 1.890625 lessa (exact). Lessa = Perch × 1.890625 · reverse Perch = Lessa ÷ 1.890625

Perch	Lessa
1	1.890625
2	3.78125
3	5.671875
5	9.453125
10	18.90625
20	37.8125
50	94.53125
100	189.0625
200	378.125
500	945.3125
1,000	1,890.625

Perch to Nali

1 perch = 0.126042 nali (recurring). Nali = Perch × 121/960 · reverse Perch = Nali × 960/121

Perch	Nali
1	0.126042
2	0.252083
3	0.378125
5	0.630208
10	1.260417
20	2.520833
50	6.302083
100	12.604167
200	25.208333
500	63.020833
1,000	126.041667

Perch to Pura

1 perch = 0.0047265625 pura (exact). Pura = Perch × 0.0047265625 · reverse Perch = Pura ÷ 0.0047265625

Perch	Pura
1	0.0047265625
2	0.009453125
3	0.0141796875
5	0.0236328125
10	0.047265625
20	0.09453125
50	0.236328125
100	0.47265625
200	0.9453125
500	2.36328125
1,000	4.7265625

Perch to Square Centimeter

1 perch = 252,928.5264 square centimeter (exact). Square Centimeter = Perch × 252,928.5264 · reverse Perch = Square Centimeter ÷ 252,928.5264

Perch	Square Centimeter
1	252,928.5264
2	505,857.0528
3	758,785.5792
5	1,264,642.632
10	2,529,285.264
20	5,058,570.528
50	12,646,426.32
100	25,292,852.64
200	50,585,705.28
500	126,464,263.2
1,000	252,928,526.4

Perch to Square Inch

1 perch = 39,204 square inch (exact). Square Inch = Perch × 39,204 · reverse Perch = Square Inch ÷ 39,204

Perch	Square Inch
1	39,204
2	78,408
3	117,612
5	196,020
10	392,040
20	784,080
50	1,960,200
100	3,920,400
200	7,840,800
500	19,602,000
1,000	39,204,000

Perch to Square Kilometer

1 perch = 0.00002529285264 square kilometer (exact). Square Kilometer = Perch × 0.00002529285264 · reverse Perch = Square Kilometer ÷ 0.00002529285264

Perch	Square Kilometer
1	0.00002529285264
2	0.00005058570528
3	0.00007587855792
5	0.0001264642632
10	0.0002529285264
20	0.0005058570528
50	0.001264642632
100	0.002529285264
200	0.005058570528
500	0.01264642632
1,000	0.02529285264

Perch to Square Mile

1 perch = 0.000009765625 square mile (exact). Square Mile = Perch × 0.000009765625 · reverse Perch = Square Mile × 102,400

Perch	Square Mile
1	0.000009765625
2	0.00001953125
3	0.000029296875
5	0.000048828125
10	0.00009765625
20	0.0001953125
50	0.00048828125
100	0.0009765625
200	0.001953125
500	0.0048828125
1,000	0.009765625

Perch to the Units That Are the Same Area

Five of the thirty-two units are two names for one area with another, so their figures are identical to the last digit.

Perch to Decimal

1 perch = 0.625 decimal. A decimal and a cent are the same area, 435.6 square feet, so any Perch figure converts to the same number of either. Decimal = Perch × 0.625 · reverse Perch = Decimal × 1.6

Perch to Dismil

1 perch = 0.625 dismil. A dismil and a cent are the same area, 435.6 square feet, so any Perch figure converts to the same number of either. Dismil = Perch × 0.625 · reverse Perch = Dismil × 1.6

Perch to Gajam

1 perch = 30.25 gajam. A gajam and a gaj are the same area, 9 square feet, so any Perch figure converts to the same number of either. Gajam = Perch × 30.25 · reverse Perch = Gajam ÷ 30.25

Perch to Killa

1 perch = 0.00625 killa. A killa and an acre are the same area, 43,560 square feet, so any Perch figure converts to the same number of either. Killa = Perch × 0.00625 · reverse Perch = Killa × 160

Perch to Square Yard

1 perch = 30.25 square yards. A square yard and a gaj are the same area, 9 square feet, so any Perch figure converts to the same number of either. Square Yard = Perch × 30.25 · reverse Perch = Square Yard ÷ 30.25

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The tables above are arithmetic, and for a perch the arithmetic is the easy half. What decides whether the figure you started with is the right one to convert at all is Where the Perch Actually Survives.