Land Area Converter
Convert bigha, katha, guntha, cent, marla and kanal into acres, hectares and square feet.
This tool runs entirely in your browser. Your data is never uploaded, never stored, and never leaves your device.
Converts a plot between the Indian land units people actually use — bigha in its several sizes, katha, biswa, guntha, cent, dismil, marla, kanal, ground and gaj — and shows every one at once rather than a single pair.
How to use it
- 1Type the area and pick the unit your land record uses.
- 2Read the whole table: the same plot expressed in every other unit.
- 3Check the definition printed beside each unit against your own record.
Example
- Input
- 1 bigha, pucca (UP, Bihar, Rajasthan)
- Output
- 0.625 acre · 0.253 hectare · 27,225 sq ft · 3,025 gaj · 20 biswa · 25 guntha · 62.5 cent
The same plot is 1.5625 kachha bigha. Both bighas circulate in UP and Rajasthan and differ by more than half again, which is the single most common reason two people disagree about the size of a field.
What happens to your data
Every figure is derived from the unit's definition rather than copied from a table, so units that are genuinely the same size read the same — a dismil and a cent are both one hundredth of an acre. Customary units vary by district, so each definition is printed beside it. Nothing you type is sent anywhere.
Last updated September 2026
Two people can stand on the same field and disagree about its size by more than half, and both be quoting a bigha.
That is not carelessness. There is no single bigha. The pucca or “ripe” bigha of UP, Bihar and Rajasthan is 3,025 square yards; the kachha or “raw” bigha circulating in the same states is 1,936, a factor of 1.5625 between them. Madhya Pradesh uses a different figure again, West Bengal a much smaller one. Katha, biswa, guntha, cent, dismil, marla, kanal and ground each carry their own regional definitions on top.
Type a plot in the unit your land record uses and this shows it in every other unit at once — one bigha pucca is 0.625 acre, 0.253 hectare, 27,225 square feet, 3,025 gaj, 20 biswa, 25 guntha and 62.5 cent — with the definition behind each figure printed beside it, so you can check it against the record rather than take it on trust.
Both bighas are listed. Every converter checked offers exactly one per state, which means a share of the people using it are handed an answer half again too big and given no way to notice.
How it works
Toolvore defines one unit — the acre, at 43,560 square feet — and derives every other from its own definition rather than from a table of decimals. A unit specified as a fraction of an acre is computed from that fraction; a unit specified as an area is computed from that area. Nothing is transcribed.
That sounds pedantic and it is the whole reliability argument. A dismil and a cent are the same thing — both one hundredth of an acre, both 435.6 square feet, one name used in Bihar and the other in Tamil Nadu and Kerala. Derived from a shared expression they cannot disagree. Copied as two decimals they can, and on the site this tool was measured against they do: its dismil is 0.040468 hectares against its cent at 0.004047, ten times apart, while its own page labels both “1/100 acre” in a single sentence. A farmer entering land in dismil there is told to buy ten times the fertilizer.
The conversions are exact rather than rounded, which is why the table lands on clean figures: one pucca bigha is exactly 20 biswa, exactly 25 guntha and exactly 62.5 cent, because a biswa is a twentieth of that bigha and a guntha is a fortieth of an acre. Round figures falling out of independent definitions is a good sign the definitions are right; a table of hand-typed decimals produces 24.998 and nobody notices.
The precision shown adapts to the number — six decimal places on a fraction of a hectare, none on a few million square feet — because one fixed setting is wrong at one end of that range or the other.
All of it is arithmetic in the page. Nothing is uploaded, nothing you type is stored, and it works with the network off. Note that customary units vary by district as well as by state, so the definitions here are the common ones and your local record may differ — which is exactly why each one is printed rather than hidden.
Common use cases
- Reading a land record written in bigha or katha when you think in acres
- Checking whether a plot described in kachha bigha matches one described in pucca
- Converting a Punjab or Haryana holding from kanal and marla into square feet
- Turning a Tamil Nadu or Kerala figure in cents into hectares for a farm form
- Working out gaj for a plot quoted in square feet before dealing with a buyer
- Settling a family disagreement about the size of a field where the two sides are using different bighas
Frequently asked questions
How many acres is one bigha?＋
It depends which bigha, and anyone giving a single answer is guessing. The pucca bigha of UP, Bihar and Rajasthan is 0.625 acre — five eighths, exactly. The kachha bigha of the same region is 0.4 acre. Madhya Pradesh works out around 0.276 acre and West Bengal 0.33. Pick your state from the list and the definition used is printed underneath it.
What is the difference between pucca and kachha bigha?＋
Pucca means “ripe” and kachha “raw”, and they are two customary sizes that circulate side by side. The pucca is 3,025 square yards, the kachha 1,936 — a ratio of exactly 1.5625, so a plot is more than half again bigger in one than the other. This is the single most common reason two people quote different sizes for the same field, and almost no converter offers both.
Are dismil and cent the same?＋
Yes. Both are one hundredth of an acre, 435.6 square feet. Dismil, sometimes decimal or shatak, is the Bihar, Jharkhand, West Bengal and Odisha name; cent is the Tamil Nadu, Kerala and Karnataka one. They read identically here because both are computed from the same fraction of an acre. If you find a converter where they differ, one of the two is wrong.
My land record does not match these numbers.＋
Check which variant the record means before assuming either is wrong. Customary units vary by district as well as by state, and the bigha, katha and biswa in particular have several live definitions. The definition used is printed beside every unit here for exactly this reason. If your local unit is genuinely a different size, work in square feet or square metres, which have one meaning everywhere.
How many square feet is a gaj?＋
Nine. A gaj is a square yard, and a yard is three feet, so a square yard is three by three. It is the unit plots are usually quoted in for residential land in north India, which is why a 200 gaj plot is 1,800 square feet.
Can I use this for a legal or registry purpose?＋
Treat it as arithmetic, not as authority. The conversions are exact and derived from the standard definitions, but which definition applies to a particular holding is a question for the land record and the revenue office, not for a web page. Use this to understand a figure or check one; use the record itself for anything that has to be right in law.
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