Convert bigha to acre using the bigha your state publishes, not a guessed average
Runs in your browser. Nothing you type is sent anywhere. Checked against sources on 29 Sept 2026.A bigha has no single size in India. West Bengal and Assam publish it as 14,400 square feet, about a third of an acre; Haryana’s older records use 9,075 square feet, so 4.8 bigha make an acre; Himachal Pradesh has three bighas depending on the district.
| State | Sq ft | Acres | Note |
|---|---|---|---|
| West Bengal | 14,400 | 0.3306 | 20 katha |
| Assam | 14,400 | 0.3306 | state figure |
| Haryana | 9,075 | 0.2083 | pre-settlement records |
| Himachal (pakka) | 27,225 | 0.625 | 99-inch gatha |
| Himachal (kacha) | 9,075 | 0.2083 | Sirmaur, parts of Shimla, Solan |
| Himachal (54-inch karam) | 8,100 | 0.186 | Kinnaur, Bilaspur |
| Bihar (Patna) | 27,220 | 0.6249 | approximate; varies |
The page opens on West Bengal, bigha to acre; change the State if your land is elsewhere.
Enter the number of bigha in Area.
Read the area in acres.
Open the state's units tab below to check the size of one bigha there.
Choose your state, enter the bigha figure from your land record, and read the acres, hectares and square feet together.
Square feet, square metres, square yards, acres and hectares are fixed by international definition: a foot is exactly 0.3048 metre, so an acre of 43,560 square feet is exactly 4,046.8564224 square metres. Those conversions are the same in every state and come from NIST Handbook 44, Appendix C. A gaj is the everyday name for a square yard, 9 square feet.
Local units are different. The bigha, kanal, katha, guntha and their smaller parts grew out of local measuring rods, and the same word means different areas in different places. A bigha is 14,400 square feet in West Bengal and Assam, 9,075 square feet in Haryana's older records, and anything from 8,100 to 27,225 square feet in Himachal Pradesh depending on the district. A converter that shows one bigha for all of India is wrong for most of it.
What this page includes. A state's local units appear only when we found the figure in a state or central government document: a revenue department table, a registration directorate FAQ, a state gazetteer, a land records manual or an audit report. Each state's sources are linked in the table under the converter. Bihar's glossary gives the kattha only approximately, for Patna, so those figures are marked approximate.
The rest of the article, and all 6 questions about Land Area Converter, are on the Land Area Converter page.
The answer depends on the state. West Bengal and Assam publish the bigha as 14,400 square feet. Haryana's pre-settlement bigha is 9,075 square feet, 4.8 to the acre. Himachal Pradesh uses 8,100, 9,075 or 27,225 square feet by district. Bihar's glossary gives about 27,220 square feet around Patna. Choose your state to see its figure.
Haryana's land records define 20 marla to the kanal and 8 kanal to the acre. A marla is 9 sarsai of 5.5 by 5.5 feet, which is 272.25 square feet, so a kanal is 5,445 square feet or 605 square yards. Himachal Pradesh uses the same figures where the 66-inch karam applies.
A state appears only when we found its local units in an official state or central government document. For Uttar Pradesh, Rajasthan, Punjab, Gujarat, Madhya Pradesh and several others, the only tables available were unsourced copies, and a wrong bigha can cost real money in a land deal. Standard units still work for every state.
No. Maund and seer measure weight, not area, so there is no correct way to turn them into acres or bighas. A maund of wheat is a quantity of grain, not a piece of land. Use a weight converter for those, and this page for the area of the land itself.
Rates and rules change; check the source before you rely on a figure.
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Same job, other tools: Feet to Meters Converter – Feet to meters and back: 1 foot is exactly 0.3048 m, 1 meter 3.28084 feet.
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