Bihar Bigha to Acre & Sq Ft Converter
1 Bigha = 27,225 sq ft = 0.625 acre = 2,529.29 sq m
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Square feet
27,225
in 1 bigha
Acre
0.625
in 1 bigha
Square metre
2,529.29
in 1 bigha
Square yard (gaj)
3,025
in 1 bigha
1 Bigha in Bihar
27,225 sq ft = 0.625 acre
Katha (kattha)
20
Dhur
400
Decimal (dismil)
62.5
Square feet
27,225
Square metre
2,529.29
Square yard (gaj)
3,025
Acre
0.625
Hectare
0.2529
20 katha x 1,361.25 sq ft = 27,225 sq ft (62.5 decimal), and 1 katha = 20 dhur of about 68 sq ft. Sizes can differ by district, so check with your patwari or land record before a sale.
Local units
Bihar land units: bigha and its parts
In Bihar 1 bigha = 20 katha and 1 katha = 20 dhur. The Patna High Court has taken 1 bigha as 62.5 decimal, which is 27,225 sq ft. The Bihar revenue glossary notes that the katha is not the same everywhere in the state.
| Unit | In 1 bigha | Square feet | Square metre |
|---|---|---|---|
| Bigha(बीघा) | 1 | 27,225 | 2,529.29 |
| Katha (kattha)(कट्ठा) | 20 | 1,361.25 | 126.46 |
| Dhur(धुर) | 400 | 68.0625 | 6.3232 |
| Decimal (dismil) | 62.5 | 435.6 | 40.4686 |
20 katha x 1,361.25 sq ft = 27,225 sq ft (62.5 decimal), and 1 katha = 20 dhur of about 68 sq ft. The size used around Patna and in most conversions. The katha, and so the bigha, differs in some districts.
Ready table
Bigha to acre and sq ft table (Bihar)
Using 1 bigha = 27,225 sq ft.
| Bigha | Square feet | Acre | Square metre | Hectare |
|---|---|---|---|---|
| 1 bigha | 27,225 | 0.625 | 2,529.29 | 0.2529 |
| 2 bigha | 54,450 | 1.25 | 5,058.57 | 0.5059 |
| 3 bigha | 81,675 | 1.875 | 7,587.86 | 0.7588 |
| 4 bigha | 1,08,900 | 2.5 | 10,117.14 | 1.0117 |
| 5 bigha | 1,36,125 | 3.125 | 12,646.43 | 1.2646 |
| 6 bigha | 1,63,350 | 3.75 | 15,175.71 | 1.5176 |
| 7 bigha | 1,90,575 | 4.375 | 17,705 | 1.7705 |
| 8 bigha | 2,17,800 | 5 | 20,234.28 | 2.0234 |
| 9 bigha | 2,45,025 | 5.625 | 22,763.57 | 2.2764 |
| 10 bigha | 2,72,250 | 6.25 | 25,292.85 | 2.5293 |
| 15 bigha | 4,08,375 | 9.375 | 37,939.28 | 3.7939 |
| 20 bigha | 5,44,500 | 12.5 | 50,585.71 | 5.0586 |
| 25 bigha | 6,80,625 | 15.625 | 63,232.13 | 6.3232 |
| 50 bigha | 13,61,250 | 31.25 | 1,26,464.26 | 12.6464 |
| 100 bigha | 27,22,500 | 62.5 | 2,52,928.53 | 25.2929 |
Good to know
Is the bigha the same all over Bihar?
- 27,225 sq ft (62.5 decimal) is the bigha used around Patna and in most of central Bihar.
- The katha changes by district. Bigger kathas are reported in Saran (Chhapra), Vaishali (Hajipur) and West Champaran, so a bigha there can be larger.
- If your area uses another katha, choose "Other / my own bigha size" and type 20 times your katha in sq ft.
- Bihar land records (jamabandi, khatiyan) also give the area in decimal or acre. Go by that for a sale.
The numbers here are the commonly used sizes, for a quick estimate. For a sale, registry, loan or court matter, go by the area written in your land record (jamabandi, khatauni, 7/12 or patta), which is normally also given in hectare or acre, and ask the patwari or revenue office if your area uses a different bigha.
Sources
- Bihar Revenue and Land Reforms Department: Revenue glossary
- Court judgments on the size of a bigha (Patna HC, 62.5 decimal)
Last checked: 2026-10-26
Step by step
How to convert bigha to acre in Bihar
- 1
Check the state
Bihar is already chosen. If your land is in another state, pick it from the list.
- 2
Type the area
Type the area, for example 2.5, and choose the unit it is in.
- 3
Read every unit
The answer shows in acre, hectare, sq ft, sq m, sq yd and the local units at once.
- 4
Check the record
For a sale or a loan, match the answer with the area written in your land record.
FAQ
Frequently asked questions
How many square feet are in 1 bigha in Bihar?
1 Bigha = 27,225 sq ft = 0.625 acre = 2,529.29 sq m. 20 katha x 1,361.25 sq ft = 27,225 sq ft (62.5 decimal), and 1 katha = 20 dhur of about 68 sq ft.
How many bigha make 1 acre in Bihar?
1 acre is 43,560 sq ft, so it is 1.6 bigha of 27,225 sq ft.
How many bigha make 1 hectare in Bihar?
1 hectare is 10,000 sq m (about 1,07,639 sq ft), so it is 3.9537 bigha.
How many katha (kattha) are in 1 bigha in Bihar?
1 bigha = 20 katha (kattha), and 1 katha (kattha) = 1,361.25 sq ft.
How many dhur are in 1 bigha in Bihar?
1 bigha = 400 dhur, and 1 dhur = 68.0625 sq ft.
How many decimal (dismil) are in 1 bigha in Bihar?
1 bigha = 62.5 decimal (dismil), and 1 decimal (dismil) = 435.6 sq ft.
How many decimal make 1 bigha in Bihar?
62.5 decimal for the standard 27,225 sq ft bigha. 1 katha is then 3.125 decimal.
1 katha mein kitna sq ft hota hai Bihar mein?
Patna ke aas-paas 1 katha = 1,361.25 sq ft. Kuch districts mein katha bada hota hai, isliye apne halka karmchari se pooch lein.
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