Land unit converter: katha, bigha, decimal, acre and square feet
One katha is 720 square feet and one bigha is 20 katha, or 14,400 square feet, under the Dhaka standard. One decimal — also called shotangsho — is 435.6 square feet, and 100 decimal make one acre. Katha and bigha are larger in parts of Rajshahi and Khulna, so always check which standard a listing uses.
| sq ft | 720 |
|---|---|
| sq m | 66.9 |
| decimal | 1.653 |
| acre | 0.017 |
| kani | 0.042 |
| bigha | 0.05 |
Conversion table
| Unit | standard.dhaka | standard.rajshahi | sq m |
|---|---|---|---|
| 1 sq ft | 1 sq ft | 1 sq ft | 0.093 |
| 1 sq m | 10.8 sq ft | 10.8 sq ft | 1 |
| 1 decimal | 435.6 sq ft | 435.6 sq ft | 40.5 |
| 1 acre | 43560 sq ft | 43560 sq ft | 4047 |
| 1 kani | 17280 sq ft | 17280 sq ft | 1605 |
| 1 katha | 720 sq ft | 1620 sq ft | 66.9 |
| 1 bigha | 14400 sq ft | 32400 sq ft | 1338 |
Common questions
How many square feet is one katha?
One katha is 720 square feet under the Dhaka standard. In parts of Rajshahi and Khulna a katha is about 1,620 square feet, so the same "5 katha" describes a plot more than twice the size.
How many katha are in one bigha?
One bigha is 20 katha. Under the Dhaka standard that is 14,400 square feet; under the Rajshahi standard it is about 32,400 square feet.
What is a decimal, and is it the same as shotangsho?
Yes. A decimal, also called shotangsho or shotok, is one hundredth of an acre — 435.6 square feet. Unlike katha and bigha it does not change by region.
How many decimal are in one acre?
One hundred. An acre is 43,560 square feet, which is also 60.5 katha or 3.025 bigha under the Dhaka standard.
Katha, bigha and kani vary by district. Where a deed or a mutation record states a different local standard, that record governs.