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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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  • Works offline once loaded
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Convert

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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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From a free tool to your own software

Software for property and land businesses

Land units change from state to state, and every conversion done by hand is a chance to misquote a plot. Developers, brokers and land consultants handling hundreds of listings need those numbers inside their own systems, on the listing, in the CRM and on the agreement, not in a browser tab.

  • Property listing portals

    Listings that show area in the buyer's own unit, gaj, bigha, katha or square feet, with state-aware conversion, map search and enquiry capture built in.

  • Broker and developer CRMs

    Track plots, site visits and follow-ups in one place, with area, rate per unit and total price calculated the same way on every deal.

  • Land-records digitisation

    Bring survey and ownership records into a searchable system, convert historic units consistently and flag mismatches before they reach a registry office.

  • Pricing calculators for your website

    An embeddable calculator that turns plot size and rate into a clear quote, so enquiries arrive with the numbers already worked out.

Who we build this for: Real-estate developers, brokers, land consultants and property portals across India.

This tool runs entirely in your browser. The team that built it designs custom software for businesses and runs DigiSign, our own signage platform, in production.

Plan a property platform Web & Mobile Applications

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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Who makes these tools

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.