Dismil to Square Feet: The Complete 2026 Conversion Guide

Last updated: August 08, 2026

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1 dismil = 435.6 square feet.

That single number answers most searches for this term. The formula behind it is just as simple:

Square Feet = Dismil × 435.6

Dismil = Square Feet ÷ 435.6

Dismil	Square Feet
1	435.6
2	871.2
5	2,178
10	4,356
20	8,712

The reason the figure is exactly 435.6 and not an approximation is that a dismil is defined as one-hundredth of an acre, and an acre is exactly 43,560 sq ft. Divide 43,560 by 100 and you get 435.6 — no rounding involved.

But if you are reading this because a seller quoted you a plot in dismil, the arithmetic is only half the job. The rest of this guide covers what dismil actually means, how it compares with decimal, cent, acre, bigha and katha, which states use the term, how to check a dismil figure against the actual land record before you pay for anything, and where property area does and does not affect a home loan.

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What Is a Dismil?

A dismil is a unit of area used in Indian land measurement, equal to one-hundredth of an acre.

It belongs to the acre-based measurement system that became standard in Indian revenue records during the colonial survey era, and it survived into today's digitised land records because it is small enough to describe an ordinary residential plot while still connecting cleanly to the acre used for agricultural land.

Everything you need to place the unit sits in four lines:

Measurement	Equivalent
1 dismil	435.6 sq ft
1 dismil	0.01 acre
100 dismil	1 acre
1 acre	43,560 sq ft

The most common mistake beginners make is treating a dismil as a length. It is not.

Dismil measures area. It does not tell you the length and width of a plot.

A 5 dismil plot contains 2,178 sq ft of land. That same 2,178 sq ft could be a 33 ft × 66 ft rectangle, a 22 ft × 99 ft strip, or an irregular four-sided plot with no right angles at all. The area is identical in every case, but the usability is not. A 22 ft wide frontage limits what you can build far more than a 66 ft frontage does, even though both are "5 dismil".

This matters practically. Two plots advertised at the same dismil figure and the same price can be worth very different amounts once you factor in frontage, depth, road access and shape. When you see a dismil figure in a listing, treat it as the answer to "how much land", never as the answer to "what shape is the land".

You will also encounter the same unit under a different name. Dismil and decimal refer to the same 1/100-acre area. "Dismil" is closer to how the word is spoken in Hindi-speaking and eastern regions; "decimal" is how it is usually printed in English-language records. You may also see the spellings desimal, dismal or decimil in listings and older documents. They all point to the same 435.6 sq ft.

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Where Dismil Comes From

The origin of the unit is straightforward and worth exactly one paragraph.

Revenue administration in British India used the acre as its base unit for land area. For records to be workable, officials needed a smaller subdivision that could describe homestead plots and fragmented holdings without resorting to fractions of an acre. Dividing the acre into 100 equal parts gave them one — and the name follows directly from that decimal division. "Dismil" is the spoken form of "decimal".

This explains why the unit behaves so differently from India's older indigenous units. Bigha, katha, biswa, guntha and marla developed regionally over centuries, often tied to local ideas of how much land a plough team could work or how much seed it took to sow. They vary from district to district because they were never designed to be nationally comparable. Dismil was designed as arithmetic from the start, which is why it has a single fixed value everywhere it appears.

That is also why dismil and decimal carried over so cleanly into digitised land records. When states began computerising their record of rights, a unit that was already an exact fraction of the acre needed no reconciliation. A unit like bigha did.

One practical consequence: if a document gives you an area in dismil or decimal, you can convert it with confidence. If it gives you an area in bigha or katha, you first have to establish which local standard the document is using. That distinction runs through the rest of this guide.

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Dismil to Square Feet: Formula and Worked Examples

This is the section most readers came for, so it gets the most detail.

The formula

Square Feet = Dismil × 435.6

The reverse formula

Dismil = Square Feet ÷ 435.6

Both directions use the same constant. There is no state-wise variation to apply and no adjustment factor to look up.

Worked examples

1 dismil 1 × 435.6 = 435.6 sq ft Roughly a 19.8 ft × 22 ft rectangle, or a square of about 20.9 ft on each side. Small — usually part of a larger holding rather than a standalone plot.

2 dismil 2 × 435.6 = 871.2 sq ft Comparable to a compact 2BHK apartment carpet area, though this is open land, not built-up space.

3 dismil 3 × 435.6 = 1,306.8 sq ft A common small residential plot size in semi-urban parts of eastern India.

5 dismil 5 × 435.6 = 2,178 sq ft The single most searched conversion in this set. A 33 ft × 66 ft plot works out to exactly 2,178 sq ft, which is why that dimension pairing appears so often in listings.

10 dismil 10 × 435.6 = 4,356 sq ft One-tenth of an acre. Enough for a generously sized independent house with setbacks and parking in most municipal zoning regimes.

20 dismil 20 × 435.6 = 8,712 sq ft One-fifth of an acre. At this size, listings frequently switch to quoting in acres or katha instead.

50 dismil 50 × 435.6 = 21,780 sq ft Exactly half an acre.

100 dismil 100 × 435.6 = 43,560 sq ft Exactly one acre. If your calculation of 100 dismil does not land on 43,560, you have used the wrong multiplier.

Complete calculation table

Dismil	Calculation	Square Feet
1	1 × 435.6	435.6
2	2 × 435.6	871.2
3	3 × 435.6	1,306.8
4	4 × 435.6	1,742.4
5	5 × 435.6	2,178
6	6 × 435.6	2,613.6
7	7 × 435.6	3,049.2
8	8 × 435.6	3,484.8
9	9 × 435.6	3,920.4
10	10 × 435.6	4,356
15	15 × 435.6	6,534
20	20 × 435.6	8,712
25	25 × 435.6	10,890
50	50 × 435.6	21,780
100	100 × 435.6	43,560

Handling fractions

Dismil figures in real records are rarely whole numbers. Inheritance, partition and boundary adjustments produce values like 7.5 or 12.34 dismil. The formula does not change.

• 7.5 dismil → 7.5 × 435.6 = 3,267 sq ft
• 12.34 dismil → 12.34 × 435.6 = 5,375.3 sq ft
• 0.5 dismil → 0.5 × 435.6 = 217.8 sq ft

If an 8 dismil plot is divided equally among three heirs, each share is 8 ÷ 3 = 2.67 dismil, or about 1,161.6 sq ft. Round the dismil figure only at the very end, and only for presentation — rounding mid-calculation is how small errors become large ones on bigger plots.

Reverse conversion

Sometimes the listing gives square feet and the land record gives dismil. Divide:

• 2,178 ÷ 435.6 = 5 dismil
• 1,800 ÷ 435.6 = 4.13 dismil
• 5,000 ÷ 435.6 = 11.48 dismil
• 43,560 ÷ 435.6 = 100 dismil

The reverse direction is where discrepancies usually surface. If a seller says "5 dismil" and the brochure separately says "1,800 sq ft", those two claims do not agree — 1,800 sq ft is 4.13 dismil, about 17% less land than claimed. Running the reverse calculation on any listing that quotes both figures is a five-second check that catches a surprising number of inconsistencies.

Converting the price, not just the area

Land in dismil-using regions is often quoted at a rate per dismil, while buyers compare properties in rupees per square foot. Convert with the same constant:

Price per sq ft = Price per dismil ÷ 435.6

At ?3,00,000 per dismil, the rate works out to ?688.7 per sq ft. At ?1,50,000 per dismil, it is ?344.4 per sq ft. Doing this once lets you compare a village plot quoted per dismil against an urban plot quoted per square foot on the same scale.

The distinction that matters most

The formula converts a number. It does not verify a property.

5 dismil = 2,178 sq ft. Always true.

"This plot contains 5 dismil." Only true if the land record says so.

The first is arithmetic and cannot be wrong. The second is a factual claim about a specific piece of land, and the only things that can confirm it are the title documents, the revenue record and, where necessary, a physical survey. Keep these two ideas separate and most land-measurement disputes become much easier to spot early.

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Which Indian States Actually Use Dismil?

Dismil and decimal are encountered most consistently across eastern and parts of northern India, in both spoken usage and written records.

State / Region	Common term in use	Where you typically see it	What to check
Bihar	Decimal (spoken as dismil)	Jamabandi entries, sale deeds, plot listings	Area is often written alongside katha–dhur; reconcile both
Jharkhand	Dismil / decimal	Khata–khesra records, rural and semi-urban deeds	Katha values follow the Bihar pattern in most districts
Odisha	Decimal	Record of Rights (khatiyan), urban plot listings	Records commonly state area as acre + decimal
West Bengal	Decimal (shotok / shotangsho)	Khatian, porcha, deeds, listings	Katha and chatak dominate local speech; decimal appears in records
Assam & parts of the Northeast	Decimal	Land records alongside bigha–katha–lecha	Bigha chain here is smaller than in Bihar or UP
Eastern Uttar Pradesh	Dismil (informal)	Conversation and listings more than official records	UP records lean on bigha–biswa; confirm which unit a document uses
Chhattisgarh, parts of MP	Decimal	Rural land transactions	Local bigha values differ; do not assume

Two points about this list.

First, the terminology in conversation and the terminology in the document are often different. A seller in rural Bihar may speak in katha and dhur while the jamabandi records the same plot in decimal. Neither is wrong. They are two ways of describing the same area, and part of your job as a buyer is to confirm they agree.

Second, southern India uses cent for the identical 1/100-acre area — Tamil Nadu, Kerala, Karnataka, Andhra Pradesh and Telangana all use it widely. The word is different; the area is not.

Critical caution: the fact that a state uses dismil does not mean every traditional unit in that state has a fixed nationwide conversion. Dismil and decimal have a standardised relationship to the acre. Bigha and katha do not. A single state can use both a fixed unit and a variable one in the same document.

Terminology and record-keeping practice also change over time, and district-level practice can differ from state-level convention. Where a transaction is involved, confirm the unit used in the actual document rather than relying on a general list.

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Dismil vs Cent vs Bigha vs Katha: Why They Don't Convert the Same Way

This is the single biggest source of confusion in Indian land measurement, and it resolves cleanly once you sort units into two groups: fixed and regional.

The fixed group

Dismil / decimal — 435.6 sq ft. One-hundredth of an acre. Same value everywhere.

Cent — 435.6 sq ft. Also one-hundredth of an acre. Numerically identical to a dismil. The difference is geographic vocabulary, not measurement. If a Kerala seller quotes 5 cent and a Bihar seller quotes 5 dismil, both are describing 2,178 sq ft.

Acre — 43,560 sq ft. 100 dismil, 100 cent.

Because all three are defined off the acre, you can convert between them arithmetically without knowing which state the land is in.

The regional group

Bigha — no single value. Bigha is a traditional unit with different established sizes in different states, and sometimes in different parts of the same state. Commonly cited values include:

State / Region	1 bigha ≈ sq ft	≈ dismil
Uttar Pradesh (pucca, 20 biswa)	27,225	62.5
Bihar (20 katha)	27,225	62.5
Rajasthan (pucca)	27,225	62.5
Rajasthan (kachha)	17,424	40
West Bengal	14,400	33.06
Assam	14,400	33.06
Punjab	9,070	20.82
Himachal Pradesh	8,712	20
Uttarakhand (5 biswa type)	6,806.25	15.63

Look at the spread. One bigha in Uttar Pradesh is roughly four times one bigha in Uttarakhand. A buyer who applies a UP conversion to a Bengal plot overstates the land by nearly half. These are widely referenced figures, not statutory constants — confirm the applicable local value before relying on any of them for a transaction.

Katha — no single value. Katha is usually a subdivision of bigha, but both the size of the katha and the number of katha in a bigha vary:

Region	1 katha ≈ sq ft	≈ dismil	Bigha relationship
Bihar / Jharkhand (Patna standard)	1,361.25	3.125	20 katha = 1 bigha
West Bengal	720	1.65	20 katha = 1 bigha
Assam	2,880	6.61	5 katha = 1 bigha

A West Bengal katha and an Assam katha differ by a factor of four. The word alone tells you nothing.

Smaller sub-units follow the same pattern: dhur in Bihar is about 68.06 sq ft (1 dismil = 6.4 dhur), chatak in West Bengal is 45 sq ft, and lecha in Assam is 144 sq ft.

Side-by-side summary

Unit	Standard relationship	Regional variation?
Dismil / decimal	435.6 sq ft	No — terminology varies, area does not
Cent	435.6 sq ft	No — same area, southern vocabulary
Acre	43,560 sq ft	No
Guntha	1,089 sq ft (1 dismil = 0.4 guntha)	Largely fixed at 1/40 acre
Bigha	Region-dependent	Yes — substantially
Katha	Region-dependent	Yes — substantially
Biswa, dhur, chatak, lecha	Region-dependent	Yes

The rule to carry away

Do not convert bigha or katha into dismil using a generic nationwide factor. Identify the applicable state or local standard first — ideally from the document or the local revenue office, not from a converter's default setting.

Many online converters ask you to select a state precisely because the answer changes. If a tool gives you a bigha conversion without asking where the land is, it has made an assumption on your behalf that you cannot see.

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How to Verify Your Dismil Figure Before You Buy

Conversion accuracy and property measurement accuracy are two different things.

The formula will correctly tell you that 5 dismil equals 2,178 sq ft every single time. It has no way of knowing whether the plot in front of you actually contains 5 dismil, whether the seller owns all of it, or whether the boundary wall sits where the map says it should.

What to compare

Work through these in order, because each one can contradict the last:

1. Sale deed and prior title documents — the area stated in the schedule of property, and whether it stays consistent across the chain of past transfers.
2. Land or revenue record — the current record of rights for the plot (jamabandi in Bihar, khatiyan in Odisha and West Bengal, khata–khesra in Jharkhand, khatauni in UP). This is the entry that governs valuation and registration.
3. Plot / survey number — khesra, khasra, dag or survey number depending on the state. The number in the deed must match the number in the record.
4. Site plan or cadastral map — the plot's shape and position relative to neighbours, usually via the state's bhu naksha map service.
5. Property tax or municipal records, where the land falls inside municipal limits.
6. Physical measurement on site — ideally by the circle amin or a licensed surveyor, with adjoining owners present.
7. Boundaries and possession — what is fenced or occupied, versus what is recorded.
8. Seller-provided documents — treated as a starting point for verification, not as verification.

Verification checklist

• Does the sale deed state the same area the seller quoted verbally?
• Does the current land record show the same area as the deed?
• Do the plot, khata and survey numbers match across all documents?
• Has the area stayed consistent through previous transfers, or did it jump at some point in the chain?
• Does the site plan match the physical shape and position of the plot?
• Does a physical measurement broadly correspond with the recorded figure?
• Are the boundaries clear, undisputed and consistent with the map?
• If the record uses a different unit from the listing, do the two agree after conversion?

That last check catches a specific and common problem. A record might read "8 decimal" while a brochure advertises "4 katha". In the Patna standard, 4 katha is 5,445 sq ft, whereas 8 decimal is 3,484.8 sq ft. That is a 56% overstatement, hiding entirely inside a unit swap. Converting both figures to square feet exposes it immediately.

When the numbers do not match

A discrepancy is not something to solve with a second online calculator. Depending on what is causing it, the appropriate next step may be:

• a fresh measurement by a qualified surveyor or the local revenue amin;
• a correction application through the state's land-record system, if the record itself carries an error;
• a title search and legal opinion from a property lawyer, if the chain of documents is inconsistent;
• walking away, if the seller cannot produce a record that supports the claimed area.

A mathematical conversion is free and instant. Verification takes time and sometimes costs money. On a land purchase, that is the cheaper of the two.

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Dismil and Your Home Loan

Land area does show up in lending, but not in the way people often assume.

A dismil figure by itself does not determine home-loan approval.

What the area actually feeds into is the paperwork and the valuation:

• Valuation. The lender's empanelled valuer works from the recorded area to estimate market value. A stated area that the record does not support will surface here.
• Documentation. The area in the sale deed, the land record and the loan application should agree. Mismatches typically stall the file until they are resolved.
• Loan-to-value assessment. The sanctioned amount is a percentage of the assessed property value, so an area error flows through to the amount you can borrow. Under RBI norms for banks, home-loan LTV is generally capped at 90% for properties up to ?30 lakh, 80% between ?30 lakh and ?75 lakh, and 75% above ?75 lakh — with stamp duty and registration charges excluded from the property value in most cases.
• Property eligibility. Lenders apply their own rules about land use, zoning, approvals and location.

Other factors sit alongside all of this: applicant income, credit profile, existing obligations, property type, location, clear title, and each lender's own policy.

Plot loan, construction loan, home loan — not the same product

This distinction matters more than the dismil figure itself:

Product	What it funds	Typical characteristics
Plot / land loan	Purchase of a residential plot only	Lower LTV than a home loan (commonly cited around 60–75%), shorter tenure, usually restricted to non-agricultural plots within approved limits
Composite plot + construction loan	Plot purchase and the house built on it	Often better terms than a pure plot loan; lenders typically require construction to begin within a set period
Construction loan	Building on land you already own	Assessed against construction cost
Home purchase loan	A built or under-construction house	Standard LTV slabs and tenure
Loan against property	Borrowing against property you own	Different assessment basis entirely

There is also a tax difference worth knowing before you commit: interest deduction under Section 24(b) generally becomes available only once a house has been constructed on the plot, subject to the conditions in the Income Tax Act. A plot held purely as an investment usually does not attract the same benefits as a home loan.

Terms vary considerably between lenders and change over time. Confirm current LTV, tenure, eligibility and tax treatment directly with the lender and, for tax questions, with a qualified tax professional.

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Common Mistakes Buyers Make With Dismil Land

1. Assuming bigha has one universal conversion. It does not. A bigha in Uttar Pradesh is roughly 62.5 dismil; in Himachal Pradesh it is 20. Applying the wrong one on a 5 bigha plot misstates the land by more than an acre.

2. Confusing area with dimensions. 5 dismil tells you the plot contains 2,178 sq ft. It says nothing about frontage, depth or shape — and those often matter more for what you can actually build.

3. Trusting a verbal measurement. "It's about 6 dismil" is a starting point for verification, not a fact. Compare it against the deed and the land record before it influences your price.

4. Using an incorrect conversion factor. Some converters use 435.56 or round to 435. On a single dismil the difference is negligible; on 500 dismil, using 435 instead of 435.6 loses 300 sq ft. Use 435.6 — it is exact, not approximate.

5. Assuming dismil and decimal are different areas. They are the same unit. So is cent. If a document uses one and a listing uses another, there is nothing to convert between them.

6. Comparing across units without converting. "4 katha" versus "8 decimal" looks like a small difference until you convert both to square feet and find a gap of nearly 2,000 sq ft. Always bring every figure to a common unit before comparing.

7. Assuming conversion proves ownership. Arithmetic establishes none of the following: ownership, clear title, boundaries, possession, encumbrances, or legal validity of the transaction. It converts a number.

8. Relying only on an online calculator. A calculator multiplies. It cannot read a jamabandi, spot a mutation that was never completed, or notice that the area jumped between two transfers in the chain of title.

9. Rounding too early. Round at the end, for presentation. Rounding 12.34 dismil to 12 before multiplying loses 148 sq ft.

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Quick Reference: Dismil Conversion Table

Dismil to square feet and acres

Dismil	Square Feet	Acres
1	435.6	0.01
2	871.2	0.02
3	1,306.8	0.03
5	2,178	0.05
10	4,356	0.10
20	8,712	0.20
25	10,890	0.25
50	21,780	0.50
75	32,670	0.75
100	43,560	1.00

Square feet to dismil

Square Feet	Approx. Dismil
435.6	1
871.2	2
1,306.8	3
2,178	5
4,356	10
10,890	25
21,780	50
43,560	100

One dismil in other units

Unit	1 dismil equals
Square feet	435.6
Square yards (gaj)	48.4
Square metres	40.47
Acre	0.01
Hectare	0.004047
Cent	1
Guntha	0.4
Marla	1.6
Kanal	0.08
Dhur (Bihar)	6.4
Chatak (West Bengal)	9.68
Lecha (Assam)	3.03

Metric equivalents are rounded; the square-foot and acre relationships are exact.

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Frequently Asked Questions

Is 1 dismil the same as 1 cent?

Yes. Numerically, 1 dismil and 1 cent both represent 435.6 sq ft in the standard acre-based system, because both are defined as one-hundredth of an acre. The difference is regional vocabulary: cent is the common term across Tamil Nadu, Kerala, Karnataka, Andhra Pradesh and Telangana, while dismil and decimal dominate in Bihar, Jharkhand, Odisha, West Bengal and Assam. A 5 cent plot in Kochi and a 5 dismil plot in Patna contain the same area of land.

How many dismil make one acre?

100 dismil make 1 acre. The arithmetic: 43,560 ÷ 435.6 = 100. This works in reverse too — 1 acre × 100 = 100 dismil, and 50 dismil is exactly half an acre at 21,780 sq ft. Because the relationship is exact rather than approximate, it is a useful sanity check on any dismil calculation: if your figure for 100 dismil does not come out to 43,560 sq ft, the multiplier you used is wrong.

Is dismil the same as decimal?

Yes. In Indian land and property contexts, dismil and decimal are two names for the same 1/100-acre unit equal to 435.6 sq ft. "Decimal" is the form usually printed in English-language land records; "dismil" is closer to how the word is spoken. You may also encounter the spellings dismal, desimal or decimil in listings and older documents. None of these represent a different area — if a deed says decimal and the seller says dismil, there is nothing to convert.

Can I convert bigha directly to dismil?

Not reliably without knowing the regional definition of bigha. Bigha has no single national value: it is around 27,225 sq ft (62.5 dismil) in Uttar Pradesh and Bihar, 14,400 sq ft (33.06 dismil) in West Bengal and Assam, and 8,712 sq ft (20 dismil) in Himachal Pradesh. Using the wrong one can misstate a plot by a factor of three. Establish which local standard applies — from the document itself or the local revenue office — before converting.

How many square feet is 1 katha?

That depends entirely on where the land is. In Bihar and Jharkhand, the commonly used katha is 1,361.25 sq ft (about 3.125 dismil). In West Bengal it is 720 sq ft (about 1.65 dismil). In Assam it is 2,880 sq ft (about 6.61 dismil). The number of katha in a bigha also changes — 20 in Bihar and West Bengal, 5 in Assam. Never carry a katha value across state lines.

Which government portal can I use to verify my dismil-based land record?

There is no single national portal that serves every state. Land and revenue records are maintained through state-specific systems, so the correct portal depends on where the land is — Bihar, Jharkhand, West Bengal, Odisha and Uttar Pradesh each operate their own land-record and map services under their revenue departments. Identify your state's current official portal, confirm it is a government domain, and cross-check anything you find there against the physical documents. For certified copies, the local revenue or tehsil office remains the authoritative route.

Does a dismil figure affect my home loan approval?

Property area is relevant to documentation and valuation, but the dismil figure alone does not determine home-loan approval. The lender's valuer uses the recorded area to assess property value, which in turn affects the sanctioned amount through the loan-to-value ratio. Beyond that, assessment considers applicant income, credit profile, existing obligations, property type and location, clear title, and each lender's own eligibility policy. An area mismatch between the deed and the land record is more likely to delay a file than the size of the plot itself.

How do I calculate the price per square foot from a rate quoted per dismil?

Divide the per-dismil rate by 435.6. A plot quoted at ?3,00,000 per dismil works out to about ?689 per sq ft; at ?1,50,000 per dismil it is about ?344 per sq ft. Converting both to a common unit is the only way to compare a village plot quoted per dismil against an urban plot quoted per square foot. Remember that stamp duty, registration and mutation costs sit on top of the land price.

What is the exact value — 435.6 or 435.56 sq ft?

Use 435.6. It is exact, derived by dividing 43,560 sq ft (one acre) by 100. Some converters display 435.56 because they route the calculation through the metric value of an acre and round on the way, which introduces a small error. On a single dismil the difference is trivial; across a large holding it compounds. Similarly, 1 dismil in metric is 40.4686 sq m, usually shown rounded to 40.47.

Can a dismil measurement be shown on a property map?

The map shows the plot's shape, boundaries and position, and the record states its area — the two work together. Most states publish cadastral maps through a bhu naksha service alongside the textual record. Comparing them matters because a plot can be recorded at the correct area while its mapped boundaries do not match what is fenced on the ground. If the map and the physical possession disagree, that is a survey question, not a conversion question.

Is dismil still used in official records in 2026?

Yes. Decimal remains in active use in the land records of several eastern states, often alongside acre and metric figures. Some records now present area in more than one system, which is helpful for cross-checking. What has changed is where the authority sits: the digitised record of rights, not the seller's description, is what governs registration and valuation.

How much land is 1 dismil in real terms?

435.6 sq ft — roughly a 19.8 ft × 22 ft rectangle, or about the footprint of a large single room. It is a small unit by design, which is why plots are usually quoted in multiples: 3, 5 and 10 dismil are common residential sizes in dismil-using regions, corresponding to 1,306.8, 2,178 and 4,356 sq ft respectively.

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Final Takeaway

The core numbers are fixed and worth committing to memory:

• 1 dismil = 435.6 sq ft
• 100 dismil = 1 acre
• 1 acre = 43,560 sq ft
• Dismil, decimal and cent all describe the same area
• Bigha and katha require a state-specific value — always

The conversion itself is the easy part. Multiply by 435.6 and you have a reliable square-foot figure every time, with no regional adjustment to apply.

What the conversion cannot do is confirm that the land in front of you actually contains the area someone has quoted. That answer lives in the sale deed, the land record, the survey number and, where it matters, a physical measurement by someone qualified to make one. A buyer who runs both checks — the arithmetic and the record — is in a far stronger position than one who runs only the first.

So finish with both questions answered. How much land is this? Multiply by 435.6. Is that actually what I am buying? Check the record.