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Land Area ConverterAcre, Cent, Guntha, Bigha, Ground & Sq Ft
Convert any land measurement in India or abroad in one step. Type a value, choose your units and this land area converter shows the answer in 24 units at once, using the correct bigha, katha and biswa size for your state. You can also measure an irregular plot from its sides and turn a price per sq ft into a price per cent, guntha or acre.
- 24 land units
- 13 state bigha sizes
- 3 tools in one
- 0 sign-ups or uploads
Acre, cent, guntha, ground and hectare are fixed everywhere. Only bigha, katha, biswa and dhur change by state.
Popular conversions
One tap fills the converter
Same area in every unit
Tap any unit to make it the result
Plot area in common units
Bigha uses your selected state
Compare listings quoted in different units. Excludes stamp duty, registration and brokerage.
Same rate in every unit
Price per unit of land
Land measurement units in India
India uses a mix of international units and regional ones that grew out of old revenue systems. As a result, the same plot may be sold in cents in Kerala, in gunthas in Pune and in square yards in Delhi. This table lists every fixed unit in the land area converter with its exact size.
| Unit | Square feet | Square meters | Mainly used in |
|---|---|---|---|
| Acre | 43,560 | 4,046.86 | All of India, US, UK |
| Hectare | 1,07,639 | 10,000 | Government and revenue records |
| Cent | 435.6 | 40.47 | Tamil Nadu, Kerala, Karnataka, Andhra Pradesh |
| Guntha | 1,089 | 101.17 | Maharashtra, Karnataka, Telangana, Gujarat, Goa |
| Ground | 2,400 | 222.97 | Chennai and Tamil Nadu |
| Ankanam | 72 | 6.69 | Andhra Pradesh, Telangana |
| Square yard (gaj) | 9 | 0.836 | Urban plots in North India |
| Kanal | 5,445 | 505.86 | Punjab, Haryana, Himachal Pradesh, J&K |
| Marla | 272.25 | 25.29 | Punjab, Haryana, J&K |
| Decimal (dismil) | 435.6 | 40.47 | West Bengal, Odisha, Bihar, Jharkhand |
| Chatak | 45 | 4.18 | West Bengal |
| Lessa | 144 | 13.38 | Assam |
Urban marla in some Punjab and Haryana colonies is counted as 225 sq ft. Check the unit used in your layout plan.
Bigha size by state
Bigha is the unit most likely to cause costly mistakes, because its size changes from state to state. For example, one bigha in Uttar Pradesh is almost three times larger than one bigha in Himachal Pradesh. Therefore, always pick the right state before you convert bigha to acre or bigha to square feet.
| State | 1 bigha (sq ft) | Bighas in 1 acre | Katha in 1 bigha |
|---|---|---|---|
| Uttar Pradesh | 27,000 | 1.613 | 20 |
| Bihar | 27,225 | 1.600 | 20 |
| Jharkhand | 27,211 | 1.601 | 20 |
| Haryana | 27,225 | 1.600 | 20 |
| Rajasthan (pucca) | 27,225 | 1.600 | 20 |
| Rajasthan (kachha) | 17,424 | 2.500 | 20 |
| Gujarat | 17,424 | 2.500 | 20 |
| West Bengal | 14,400 | 3.025 | 20 |
| Assam | 14,400 | 3.025 | 5 |
| Madhya Pradesh | 12,000 | 3.630 | 20 |
| Punjab | 9,070 | 4.803 | 20 |
| Himachal Pradesh | 8,712 | 5.000 | 20 |
| Uttarakhand | 6,804 | 6.402 | 20 |
These are commonly used revenue values. Bigha size can also differ between districts, so confirm the figure in your sale deed, khatauni, jamabandi or tehsil records before a transaction.
A smarter land measurement calculator
Most land unit converters handle one pair of units per page and ignore regional differences. This one is built for how land is actually bought and sold in India.
State-aware bigha and katha
Choose from 13 state values so bigha, katha, biswa and dhur are never mixed up across regions.
24 units on one screen
See the same area in acres, cents, guntha, grounds, hectares, square yards and more without retyping.
Irregular plot area
Enter four uneven sides and a diagonal to get the exact area, with a sketch drawn to scale.
Land rate converter
Turn a price per sq ft into a price per cent, guntha, ground or acre, and see the total value in lakh or crore.
Shareable results
Copy a link that reopens your exact conversion, ideal for sending to a buyer, seller or family member.
Private and instant
Every calculation runs in your browser. Nothing is uploaded, and there are no ads blocking the tool.
How to use the land area converter
Enter the area
Type the figure from your deed, patta or listing. Decimals and commas both work.
Pick both units
Choose the unit you have and the unit you need. Use the swap button to reverse them.
Set your state
Only needed for bigha, katha, biswa or dhur. The highlighted box shows when it matters.
Copy or share
Copy the answer, share a link, or tap any unit tile to switch the result instantly.
Need the size of a room or a built-up area instead of open land? Use the square footage calculator for rooms and mixed shapes.
Land area conversion formulas
Every conversion goes through square feet. In other words, multiply your area by the square feet in the starting unit, then divide by the square feet in the target unit.
Acre to cent
cents = acres × 100Cent to square feet
sq ft = cents × 435.6Acre to guntha
guntha = acres × 40Guntha to square feet
sq ft = guntha × 1,089Ground to cent
cents = grounds × 5.51Hectare to acre
acres = hectares × 2.4711Square meter to sq ft
sq ft = m² × 10.7639Square yard to sq ft
sq ft = sq yd × 9Kanal to marla
marla = kanal × 20Worked example: farm land
A 2.5 acre farm is 2.5 × 43,560 = 1,08,900 sq ft. That equals 250 cents, 100 guntha or about 1.01 hectares.
Irregular plots: Heron's formula
Split the plot along a diagonal into two triangles. For each one, find s = (a + b + c) ÷ 2, then area = √(s(s−a)(s−b)(s−c)). Add both areas together.
Benefits for buyers, sellers and farmers
Compare listings fairly
Bring plots quoted in cents, grounds and square feet to one unit before you shortlist.
Check sale deeds and pattas
Verify that the area written in local units matches the survey sketch and the price.
Negotiate with real numbers
Know the true price per sq ft when a seller quotes per cent, per guntha or per acre.
Plan farm inputs
Convert acres or bighas to hectares to match seed, fertiliser and subsidy guidelines.
Work across states
NRIs and investors can read land records from any state without memorising local units.
Budget the purchase
Pair the total land value with a home loan eligibility check before you commit.
Land area converter FAQs
How many cents are there in 1 acre?
There are exactly 100 cents in 1 acre. One cent is 435.6 square feet, or about 40.47 square meters, so 1 acre is 43,560 square feet. Cent is the everyday land unit in Tamil Nadu, Kerala, Karnataka and Andhra Pradesh.
How many square feet are in 1 guntha?
One guntha equals 1,089 square feet, which is 121 square yards or about 101.17 square meters. Forty guntha make 1 acre, and 1 guntha is the same as 2.5 cents.
What is the size of 1 bigha in square feet?
Bigha has no single national size. Commonly used values are 27,000 sq ft in Uttar Pradesh, 27,225 sq ft in Bihar and Haryana, 17,424 sq ft in Gujarat, 14,400 sq ft in West Bengal and Assam, 12,000 sq ft in Madhya Pradesh and 9,070 sq ft in Punjab. Pick your state in the converter and confirm the figure with your land records.
How many square feet is 1 ground in Chennai?
One ground is 2,400 square feet, about 222.97 square meters or 5.51 cents. It is used for urban plots in Chennai and other parts of Tamil Nadu, and 1 acre equals roughly 18.15 grounds.
How do I calculate the area of an irregular plot?
Divide the plot into triangles and add up their areas. For a four-sided plot, measure all four sides plus one diagonal, then apply Heron's formula to each triangle. The Plot area tab does this for you and converts the result into cents, guntha, acres and more.
How do I convert price per square foot to price per cent or acre?
Multiply the price per square foot by 435.6 to get the price per cent, by 1,089 for the price per guntha and by 43,560 for the price per acre. The Land rate tab shows every equivalent rate and the total cost of your plot.
What is the difference between an acre and a hectare?
A hectare is the metric unit and is larger. One hectare equals 10,000 square meters or about 2.471 acres, while one acre equals about 0.4047 hectare. Government land records and acquisition notices often use hectares.
Is this land area calculator accurate for legal documents?
Fixed units such as acre, cent, guntha, hectare and square feet are exact. Regional units like bigha, katha and biswa vary by state and sometimes by district, so use the result as a guide and confirm with your sale deed, patta or tehsil office before signing anything.
Convert your land area with confidence
Whether you are reading an old patta, comparing plots or pricing farmland, this land area converter gives you a clear answer in every unit that matters. Bookmark it, share a result link, and double-check regional units before you sign.