Bigha to Acre Converter

Convert bigha to acres, hectares, square feet, katha, or decimal. Supports both the Bengal / Bangladesh bigha (14,400 sq ft) and the Bihar bigha (27,225 sq ft).

Value From To

Result 1 Bigha (West Bengal / Bangladesh · 14,400 sq ft) = 0.330579 Acre

Reference: 14,400 sq ft total.

Quick reference

1 Katha 720 sq ft Bengal
1 Bigha 20 Katha = 14,400 sq ft WB / Bangladesh, ~0.3306 acre
1 Acre 43,560 sq ft ~3 Bigha
1 Decimal 435.6 sq ft Shotok
1 Hectare 107,639 sq ft ~2.471 Acre

About this converter

Bigha (বিঘা) is a traditional land unit used across South Asia — India, Bangladesh, and Nepal. Unlike the metric acre and hectare, the bigha has no single standard size: every region historically defined its own. The two most commercially active bighas today are the Bengal / Bangladesh bigha at 14,400 square feet (0.3306 acre) and the Bihar bigha at 27,225 sq ft (0.6249 acre).

Conversion formula

Bengal / Bangladesh: acres = bigha × 0.3306, or bigha = acres × 3.025. Bihar: acres = bigha × 0.6249, or bigha = acres × 1.600.

Worked example

A 10-bigha plot in Kolkata or Dhaka is 10 × 14,400 = 144,000 sq ft = 10 × 0.3306 = 3.306 acres. The same 10 bigha if measured in Bihar would be 272,250 sq ft = 6.249 acres — nearly twice the area.

How bigha relates to katha and decimal

1 bigha (Bengal / Bangladesh) = 20 katha = 33.06 decimal. So 1 katha = 720 sq ft and 1 decimal (shotok) = 435.6 sq ft. Many Bangladeshi land registries record area in bigha–katha–chhatak notation, where 1 chhatak = 45 sq ft (1/16 of a katha).

Frequently asked questions (FAQ)

Bigha to acre FAQs

How many acres is 1 bigha?

In West Bengal and Bangladesh, 1 bigha = 14,400 sq ft = 0.3306 acre (roughly one-third of an acre). In Bihar, 1 bigha = 27,225 sq ft = 0.6249 acre. Other regions (UP, MP, Rajasthan, Gujarat) use different bigha sizes — always confirm the local convention.

What is bigha in land measurement?

Bigha is a traditional South Asian land unit used across India, Bangladesh, and Nepal. Sizes vary by region — the most common is the Bengal/Bangladesh bigha at 14,400 sq ft, which equals 20 katha.

How do I convert bigha to hectares?

1 bigha (Bengal) = 14,400 sq ft = 0.13378 hectare. So 10 bigha ≈ 1.338 hectare. The converter above gives the exact value for any quantity.

How many bigha is 1 acre?

1 acre = 43,560 sq ft = 3.025 bigha in the Bengal/Bangladesh standard, or 1.6 bigha in Bihar.

Does the converter handle the Bihar bigha?

Yes. Pick "Bigha (Bihar · 27,225 sq ft)" from the From dropdown to use the Bihar standard. Both Bengal/Bangladesh and Bihar bigha values appear in the unit list.