Bigha to Kattha Converter — West Bengal

A practical West Bengal reference used in many converters and local explanations is:

• 1 Bigha = 20 Kattha
• 1 Kattha = 720 square feet
• 1 Bigha = 14,400 square feet (about 0.33 acre)

That is why a “2 Kattha plot in Kolkata suburbs” is a very different absolute area from a “2 Kattha plot in Bihar”. Always convert to sq ft before comparing interstate listings.

Urban apartments are usually marketed in sq ft or sq m; peri-urban and rural Bengal still mix Bigha/Kattha in verbal negotiation. This page locks the Bengal multipliers so you do not paste a Bihar number by mistake.

1. Ask whether the quoted Kattha uses the 720 sq ft convention.
2. Convert to sq ft and acre, then compare with circle rates published in sq ft where applicable.
3. If a broker quotes “Bigha” for a small urban parcel, double-check — many city deals are actually in Katha/Chatak variants; clarify the exact unit.

Use the calculator below for quick Bengal conversions, then verify critical deals with a local deed writer or advocate.