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Bigha to Acre in Bihar

In Bihar, 1 bigha = 27,220 sq ft, which works out to approximately 0.625 acre — close to the UP value but not identical, which matters if you are comparing plots across the two states. This page locks the Bihar conversion so you get the right number immediately.

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Regional land units vary by state and even by local custom — confirm the value used in your area's land records before relying on it for a transaction.

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How to use this tool

  1. Enter the number of bigha

    The Bihar value is pre-selected — the default 1 bigha shows the base conversion.

  2. Read the acre value

    The result, an equivalents strip (sq ft, sq m, gaj) and a 1–10 reference table update instantly.

  3. Check the katha too

    In Bihar, 20 katha make 1 bigha — use our katha to square feet page if your land is quoted in katha instead.

Questions people ask

How many acres is 1 bigha in Bihar?

1 Bihar bigha = 27,220 sq ft ≈ 0.625 acre — very close to the UP value (0.62 acre) but not identical, which is why picking the right state matters for an exact figure.

How many katha in 1 bigha in Bihar?

20 katha make up 1 Bihar bigha, and each katha is 1,361 sq ft (1,361 × 20 = 27,220 sq ft, matching the bigha value).

How many bigha make 1 acre in Bihar?

About 1.6 Bihar bigha equal 1 acre — divide 43,560 sq ft by 27,220 sq ft to get this ratio.

Is the Bihar bigha value the same everywhere in the state?

27,220 sq ft is the value most widely cited for Bihar land records, but local district and even village-level custom has historically varied slightly — for a registry document, confirm with your local Anchal (revenue circle) office.

Why is Bihar bigha almost the same as UP bigha but not exact?

Both states derived their bigha from broadly similar pre-independence revenue-survey conventions, but each state's own settlement records fixed a slightly different square-footage — 27,000 for UP versus 27,220 for Bihar.

Is this converter free and does it work offline?

Yes — no login, no upload, and the page keeps working even without an internet connection once it has loaded.

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