Acre to Bigha Calculator

Convert acres to bigha. Because a bigha's size differs by state, pick your state for an accurate result — the calculator also shows square feet and hectares.

An acre is a fixed 43,560 square feet, but a bigha varies by state, so the number of bigha in an acre changes with your region — from about 1.6 (Rajasthan, Haryana) to 6.4 (Uttarakhand). Pick your state below for an accurate acre-to-bigha conversion, with square feet and hectares too.

How acre to bigha is calculated

Bigha = acre × 43,560 ÷ (state sq ft per bigha)
StateBigha per acre
Rajasthan (Pucca) / Haryana / Bihar1.60
Uttar Pradesh1.61
Gujarat2.50
West Bengal / Assam3.03
Madhya Pradesh3.63
Punjab4.80
Himachal Pradesh5.00
Uttarakhand6.40

Worked example

2 acres in Uttar Pradesh: 2 × 43,560 ÷ 27,000 = 3.23 bigha (about 0.81 hectares).

Why bigha per acre differs by state

Because bigha is a traditional, non-standardised unit, each state fixed its own bigha size — so the smaller the state's bigha, the more bigha fit into one acre. Himachal Pradesh (5 bigha/acre) and Uttarakhand (6.4) sit at one end; Rajasthan and Haryana (1.6) at the other. Always confirm the local definition before a land deal.

Frequently asked questions

How many bigha in 1 acre?
It depends on the state — about 1.6 in Rajasthan/Haryana, 1.61 in UP, up to 6.4 in Uttarakhand. Pick your state above.
Why does bigha per acre vary?
Bigha is non-standardised; each state defines its own bigha size, so the count per acre changes accordingly.
How many acres is 1 bigha?
Roughly 0.16–0.63 acre depending on the state (the inverse of bigha per acre).
Is an acre standard?
Yes — an acre is always 43,560 square feet, unlike bigha.

Related converters

Conversions are for general guidance. Traditional Indian land units vary by region and even by district; always confirm the local definition and official land records before any property transaction.
Written by the CalcPine team · Reviewed for accuracy · Last updated 14 July 2026 · Method: bigha = acre × 43,560 ÷ state sq-ft-per-bigha.