Katha to Square Feet Converter — Regional Land Area
Convert katha to square feet and other area units instantly. The katha is a traditional South Asian land-area unit whose size varies by Indian state — select your region to apply the correct conversion factor and get results in square feet, square meters, acres and hectares.
katha
Region
1 katha (west bengal) = 720 sq ft
Regional factor: 1 katha = X sq ft
Multiply kathas by the factor
- 1
Regional factor
1 katha = 720 ft² = 720 ft²80 sq yd — official West Bengal government standard - 2
Square feet
1 × 720 = 720
How does this calculator work?
Katha is a regional Indian unit: West Bengal/UP/Delhi = 720 sq ft (80 sq yd); Bihar/Jharkhand = 1361.25 sq ft (20 dhur); Assam = 2880 sq ft. To convert: sq ft = kathas × regional factor. From sq ft: sq m = sq ft × 0.0929, acres = sq ft ÷ 43,560, hectares = sq m ÷ 10,000.
Formula
How this is calculated
The katha (also spelled "kattha" or "cottah") is a traditional unit of land area used across northern and eastern India, Nepal and Bangladesh. Unlike SI units, its size is not standardised nationally — different Indian states adopted different values when they codified traditional measurements into official land records. West Bengal (and commonly UP, Delhi NCR) uses 1 katha = 720 square feet, equivalent to 80 square yards. Bihar and Jharkhand define 1 katha = 1361.25 sq ft (this is 20 dhur, with 1 dhur ≈ 68.0625 sq ft). Assam uses a larger katha of 2880 sq ft. Odisha uses approximately 1500 sq ft, though local variation exists.
Once the correct regional factor is selected, the conversion is a simple multiplication: Square feet = Kathas × factor. From square feet, all other unit conversions follow exactly: 1 m² = 1/0.09290304 sq ft (exact via the international foot definition), 1 acre = 43,560 sq ft (exact), 1 sq yd = 9 sq ft (exact).
Always verify the applicable factor with your state's land records office or the relevant revenue authority, as some districts may apply local sub-variants. The values in this calculator are the most widely cited government standards as of 2024.
Frequently asked questions
In Bihar and Jharkhand, 1 katha = 1361.25 square feet. This is the state government's official land-records standard, derived from the traditional dhur unit: 1 katha = 20 dhur, and 1 dhur = 68.0625 sq ft. So 20 × 68.0625 = 1361.25 sq ft.
In West Bengal, 1 katha = 720 square feet = 80 square yards. This is the official state government standard and is also used widely in UP and Delhi/NCR contexts. It is about half the Bihar katha, so always confirm which state's convention applies.
Yes. Nepal uses 1 katha = 338.63 m² ≈ 3645 sq ft (linked to the ropani system), which is much larger than Indian values. Bangladesh uses approximately 720 sq ft per katha (similar to West Bengal). This calculator covers Indian state values; for Nepal or Bangladesh, verify the local legal definition.
Also known as
TG we-Calculate Editorial Team. (2026). Katha to Square Feet Converter — Regional Land Area [Online calculator]. TG we-Calculate. https://we-calculate.com/calculator/katha-to-square-feet-converter
TG we-Calculate Editorial Team. "Katha to Square Feet Converter — Regional Land Area." TG we-Calculate. 2026. https://we-calculate.com/calculator/katha-to-square-feet-converter.
TG we-Calculate Editorial Team, "Katha to Square Feet Converter — Regional Land Area," TG we-Calculate, 2026. [Online]. Available: https://we-calculate.com/calculator/katha-to-square-feet-converter
@misc{wecalculate_katha_to_square_feet_converter, title = {Katha to Square Feet Converter — Regional Land Area}, author = {{TG we-Calculate Editorial Team}}, howpublished = {\url{https://we-calculate.com/calculator/katha-to-square-feet-converter}}, year = {2026}, note = {TG we-Calculate} }
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