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Katha to Square Feet Converter

A katha is even more state-dependent than a bigha: 1 katha is 1,361 sq ft in Bihar, only 720 sq ft in West Bengal, and a much larger 2,880 sq ft in Assam. This converter opens on the Bihar value — switch the state selector for West Bengal, Assam or Madhya Pradesh, and the conversion, equivalents and reference table update instantly.

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Regional land units vary by state and even by local custom — confirm the value used in your area's land records before relying on it for a transaction.

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How to use this tool

  1. Select your state

    Bihar, West Bengal, Assam and Madhya Pradesh each define katha very differently — the state field switches the value used.

  2. Enter the number of katha

    Type the land size in katha for your state.

  3. Read the square feet result

    The result, equivalents strip and a 1–10 reference table update instantly for your selected state.

Questions people ask

How many square feet in 1 katha in Bihar?

1,361 sq ft — and 20 katha make up 1 Bihar bigha (1,361 × 20 = 27,220 sq ft), matching our bigha-to-acre-in-Bihar figures exactly.

How many square feet in 1 katha in West Bengal?

720 sq ft — about half the Bihar value, and 20 katha make up 1 West Bengal bigha (720 × 20 = 14,400 sq ft).

How many square feet in 1 katha in Assam?

2,880 sq ft — more than double the Bihar value, making Assam's katha the largest of the four states this converter supports.

How many square feet in 1 katha in Madhya Pradesh?

600 sq ft — the smallest katha value among the states this converter covers.

Why does katha vary so much between states?

Like bigha, katha is a sub-unit each state's revenue administration standardised independently — most states define it as one-twentieth of their own local bigha, so a bigger bigha means a bigger katha, but the ratio and the absolute sizes both differ state to state.

Is this converter free and does it work offline?

Yes — no login, no upload, and the page keeps working even without an internet connection once it has loaded.

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Free because it costs us nothing to run: your browser does the work, not our servers. Made by Dynamb Technologies — we build software for businesses.