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Convert Katha to Square Feet

Katha size changes by state. 1 Katha = 1,361 Sq Ft (Bihar) or 720 Sq Ft (Bengal).

1,361.25

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What is a Katha?

The Katha (or Kattha) is a land unit popular in Eastern India, specifically Bihar, Jharkhand, parts of Uttar Pradesh, West Bengal, and Assam. Unlike the Acre, its value fluctuates wildly depending on the state and sometimes even the district (due to the "Laggi" system).

Katha Variations

  • Bihar/Jharkhand: Typically 1,361.25 Sq Ft. (20 Dhurs).
  • West Bengal: Exactly 720 Sq Ft. (1/20th of a Bigha).
  • Assam: Exactly 2,880 Sq Ft. (1 Bigha = 5 Kathas).

The Laggi Factor

In Bihar, the size of a Katha is determined by the length of a measuring rod called "Laggi". A 5.5 cubit Laggi gives 1,361 Sq Ft, while a larger Laggi yields a larger Katha.

Katha to Sq Ft Chart (Bihar Standard)

Katha Square Feet
1 Katha 1,361.25
2 Katha 2,722.50
5 Katha 6,806.25
10 Katha 13,612.50
20 Katha 27,225 (1 Bigha)

Bihar Land Guide

See how Laggi affects your land measurement.

Bengal Land Guide

Learn about Chatak and Katha in Bengal.