About Acre to Bigha

Why this site exists

Search for how many bigha make an acre and you will get a number. Almost always it is 1.6, and almost always it is presented without qualification. That figure is the North Indian pucca bigha of 27,225 square feet. It is correct in eastern Uttar Pradesh, Bihar and pucca Rajasthan, and it is wrong — by half or more — in West Bengal, Madhya Pradesh, Himachal Pradesh, Gujarat, Punjab, Haryana and the Uttarakhand hills.

For most search results, being wrong is a minor inconvenience. Here it is not. People make property decisions on these numbers, and an area understated by half changes what a plot is worth. That is the gap this site was built to close.

A bigha is not a standardised unit. Every figure on this site is tied to a named state, labelled as a commonly-cited approximation, and paired with a prompt to verify locally.

How the figures are derived

We do not collect quoted conversion ratios and average them. We start from each state's traditional definition — the size of its bigha in square yards, biswa, katha, kanal or guntha — convert that to square feet, and divide into the acre's fixed 43,560 square feet.

This is why most of the resulting ratios are exact rather than rounded: 27,225 square feet is precisely 1.6 bigha to an acre, 21,780 is precisely 2, 8,712 is precisely 5. A clean ratio is evidence that a definition is being followed. A ratio like 1.62 usually means a figure has been rounded and re-rounded through repetition.

Where a state runs more than one convention at once, we list all of them rather than choosing. Rajasthan's pucca and kaccha bigha, Uttarakhand's hill and plain figures, Gujarat's competing guntha counts and the disputed Punjab and Haryana bigha are all shown in the state comparison table and under every calculator result.

What this site is not

• It is not an official source. No Indian authority publishes a binding bigha-to-acre table, because the bigha is customary rather than statutory.
• It is not a legal measurement. For registration, mutation, mortgage or litigation, the governing area is the one recorded by your district land revenue office or measured by a licensed surveyor.
• It is not a substitute for local knowledge. Several states vary internally by district, and no table can resolve that for your specific parcel.

What it is good for: understanding a listing quickly, spotting when two figures cannot both be right, and knowing which question to ask next. The guides section covers the questions in detail.

Corrections and updates

The figures carry a 'last checked' date, shown on every page where a conversion appears. If you have a correction — particularly one backed by a state land revenue source — we want it. Corrections are the most valuable thing anyone can send us.

Get in touch through the contact page, or if you would like to write for the site, see write for us.