Bigha to Acre Converter

How to convert bigha to acres

1. Pick the region. The size of a bigha depends on where the land is. Choose the state or country; the size in square feet is shown in the list and a note explains it. If your records give a different size, type it into Custom size.
2. Enter the value and the unit. Type the number of bigha, or switch the unit to acres, hectares or square feet to convert the other way.
3. Click Convert. The result appears in acres, hectares, square feet, square yards and square metres, with the biswa or katha count for the region. Each line has a copy button.
4. Or convert a list. Paste many values, one per line, and download the table as a CSV.

The formula

acres = bigha × (square feet in one bigha) / 43,560
bigha = acres × 43,560 / (square feet in one bigha)

Everything on this page goes through square feet, using the exact definitions 1 acre = 43,560 sq ft and 1 sq ft = 0.09290304 m². Only the size of the bigha changes from place to place.

Size of a bigha by region

The converter uses these sizes. Notes on each are shown under the region list, including values that other sources give for the same state. "Per acre" is the number of bigha in one acre. For Uttar Pradesh the figure is the most commonly quoted one.

Worked example: 10 bigha

For Rajasthan: 10 × 27,225 / 43,560 = 6.25 acres. For West Bengal: 10 × 14,400 / 43,560 = 3.3058 acres. The same ten bigha therefore differ by almost a factor of two between states.

Why different websites give different answers

• There is no national standard. A bigha was fixed by local rulers and revenue systems, and it can change between districts and between pucca and kachcha measures in the same state. Rajasthan, for example, has a pucca bigha of 27,225 sq ft and a smaller kachcha bigha, published as 17,424 sq ft.
• Uttar Pradesh has several. The 27,000 sq ft figure is the one most often quoted, but other published values include 6,806.25 and 9,075 sq ft in some western districts and 27,225 sq ft in eastern UP and Lucknow.
• Some pages mix them up. Figures for the same state range from 12,000 sq ft to a full acre of 43,560 sq ft for Madhya Pradesh, and some pages give one factor for the whole country. This page uses the land-record figure and tells you where it is uncertain.
• The remedy is to use your own record. Enter the size from your land record in Custom size and the page does the arithmetic.

How to find the bigha size for your land

• Check the unit definitions printed in your state land records portal (for example the khatauni, jamabandi or Bhulekh extract) or ask the local patwari or revenue office.
• Ask whether the record uses pucca or kachcha bigha, and which district table applies.
• Where the record also gives the area in hectares or square metres, use that figure for legal purposes and treat the bigha as a convenience.

Common mistakes

• Using one factor for every state. A bigha is 0.625 acre in Rajasthan and 0.33 acre in West Bengal. Choose the right region.
• Mixing pucca and kachcha. Check which one your record uses.
• Rounding too early. Convert with the full factor and round the final answer. 0.33 acre per bigha instead of 0.3306 is an error of about 0.2% (on 1,000 bigha it is about 0.6 acre out).
• Confusing katha and biswa with their sub-units. They also differ by region; see the katha to square feet page.

What this converter does and does not do

• Presets, not law. The sizes are the commonly documented ones for each region. They are not a substitute for the definition in your own land record, and they do not cover every district.
• Exact arithmetic. Given a size, the conversion uses the exact definitions 1 acre = 43,560 sq ft and 1 sq ft = 0.09290304 m².
• No legal or valuation advice. Use the area in your registered documents for any transaction.
• Runs in your browser. Nothing is sent to a server.

Related converters

For katha see katha to square feet, for Maharashtra and Karnataka units see guntha to acre, and for Punjab and Haryana see kanal and marla to square feet. To measure a plot from coordinates, use the polygon area calculator. The Unit Converter converts other area and length units, and the guide bigha and katha to acres explains the background.