How many square kilometre are in 1 bigha?

It depends on the state, because the bigha is not a fixed size. In Uttar Pradesh, Bihar & Rajasthan (pucca), 1 bigha = 0.002529285 square kilometre. Across the states listed, the answer ranges from 0.0008093713 to 0.002529285 square kilometre — choose your state in the converter above for an accurate result.

Why does the bigha vary by state?

The bigha is a traditional unit recorded differently in each state's revenue system, and many states use a larger "pucca" and a smaller "kachha" version. There is no single national value, so the only correct conversion is the one for your specific state or district.

How do I convert bigha to square kilometre?

Pick your state above so the tool uses that state's bigha value, then type the amount. For example, in Uttar Pradesh, Bihar & Rajasthan (pucca), multiply bigha by 0.002529285 to get square kilometre.

Which states is the bigha used in?

This converter covers: Uttar Pradesh, Bihar & Rajasthan (pucca); Rajasthan (kachha); Uttar Pradesh (kachha, western UP); West Bengal; Assam; Madhya Pradesh; Himachal Pradesh (1/5 acre); Gujarat (vigha); Haryana & Punjab (kachha basis); Haryana & Punjab (pucca basis). For legal or property transactions, always confirm the local value against your revenue records (patwari / tehsil).

Convert Bigha to Square Kilometre

The bigha is not a fixed size — it varies by state. Across the states below, 1 bigha = 0.0008093713–0.002529285 square kilometre. Pick your state for an accurate result; it runs entirely in your browser.

1 Bigha = 0.002529285 Square Kilometre (Uttar Pradesh, Bihar & Rajasthan (pucca))

Bigha value — choose your state / region

Bigha (bigha)

Square Kilometre (km²)

⇅ Reverse (Square Kilometre → Bigha)

Bigha to Square Kilometre by state

Because the bigha differs from state to state, the table below gives the value in each state we cover. The square-foot column is the standard defining value; the metre and conversion columns are computed from it.

State / region	1 Bigha (sq ft)	1 Bigha (m²)	1 Bigha → Square Kilometre	1 Square Kilometre → Bigha
Uttar Pradesh, Bihar & Rajasthan (pucca)	27,225	2,529.285	0.002529285 km²	395.3686 bigha
Rajasthan (kachha)	17,424	1,618.743	0.001618743 km²	617.7635 bigha
Uttar Pradesh (kachha, western UP)	9,075	843.0951	0.0008430951 km²	1,186.106 bigha
West Bengal	14,400	1,337.804	0.001337804 km²	747.4938 bigha
Assam	14,400	1,337.804	0.001337804 km²	747.4938 bigha
Madhya Pradesh	12,000	1,114.836	0.001114836 km²	896.9925 bigha
Himachal Pradesh (1/5 acre)	8,712	809.3713	0.0008093713 km²	1,235.527 bigha
Gujarat (vigha)	17,424	1,618.743	0.001618743 km²	617.7635 bigha
Haryana & Punjab (kachha basis) *	9,075	843.0951	0.0008430951 km²	1,186.106 bigha
Haryana & Punjab (pucca basis) *	27,225	2,529.285	0.002529285 km²	395.3686 bigha

* Haryana & Punjab (kachha basis): Bigha is not standardised in Haryana/Punjab — local 1/5, 1/4 and 1/2-acre bighas (8,712 / 10,890 / 21,780 sq ft) also exist. Confirm against local records.
* Haryana & Punjab (pucca basis): Bigha is not standardised in Haryana/Punjab — several local bases exist. Confirm against local records.

Indian land units vary by state and even by district, and local custom can differ from the standard value. For any legal, property or financial purpose, confirm the value against your local revenue records (patwari / tehsil) before relying on it.

About bigha and square kilometre

Bigha: A bigha is a traditional Indian land unit whose size is not standardised — it ranges from roughly 1,500 to 2,530 m² depending on the state and on whether a "pucca" (large) or "kachha" (small) bigha is meant.

Square Kilometre: A square kilometre is a 1 km × 1 km square — 100 hectares.

Frequently asked questions

How many square kilometre are in 1 bigha?: It depends on the state, because the bigha is not a fixed size. In Uttar Pradesh, Bihar & Rajasthan (pucca), 1 bigha = 0.002529285 square kilometre. Across the states listed, the answer ranges from 0.0008093713 to 0.002529285 square kilometre — choose your state in the converter above for an accurate result.
Why does the bigha vary by state?: The bigha is a traditional unit recorded differently in each state's revenue system, and many states use a larger "pucca" and a smaller "kachha" version. There is no single national value, so the only correct conversion is the one for your specific state or district.
How do I convert bigha to square kilometre?: Pick your state above so the tool uses that state's bigha value, then type the amount. For example, in Uttar Pradesh, Bihar & Rajasthan (pucca), multiply bigha by 0.002529285 to get square kilometre.
Which states is the bigha used in?: This converter covers: Uttar Pradesh, Bihar & Rajasthan (pucca); Rajasthan (kachha); Uttar Pradesh (kachha, western UP); West Bengal; Assam; Madhya Pradesh; Himachal Pradesh (1/5 acre); Gujarat (vigha); Haryana & Punjab (kachha basis); Haryana & Punjab (pucca basis). For legal or property transactions, always confirm the local value against your revenue records (patwari / tehsil).

Related area conversions

See all area unit conversions →

Full state-by-state size reference (bigha, biswa, katha, dhur) →

Sources

Per-state values are cross-checked against multiple references, including Wikipedia: Bigha, Wikipedia: Katha, Wikipedia: Measurement of land in Punjab and state land-record references. Where sources genuinely disagree we show the documented variants rather than a single figure.