Land Measurement in Assam: Bigha, Katha, Lessa to Sq Ft Guide

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Land Measurement in Assam

Land measurement in Assam follows a North-East India survey ladder based on Bigha, Katha, and Lessa (also spelled Lecha). These units appear in mutation papers, sale deeds, and village land records across Assam and neighbouring North-East states.

For instant conversions while you read, use the free Assam Land Measurement Calculator or the full online land measurement units converter.

Assam Land Measurement Units (Official Ladder)

Unit	Equals	Square Feet
1 Lessa (Lecha)	base unit	144 Sq Ft
1 Katha	20 Lessa	2,880 Sq Ft
1 Bigha	5 Katha = 100 Lessa	14,400 Sq Ft
1 Acre	≈ 3.025 Assam Bigha	43,560 Sq Ft

Quick formulas

Sq Ft = Lessa × 144

Sq Ft = Katha × 2,880

Sq Ft = Bigha × 14,400

Acre = Sq Ft ÷ 43,560

Assam vs West Bengal Bigha

Both Assam and West Bengal commonly use a 14,400 Sq Ft Bigha, but the subdivisions differ:

Assam: 1 Bigha = 5 Katha = 100 Lessa

West Bengal / Bangladesh: 1 Bigha = 20 Katha = 33 Shatak (approx.)

Never mix Assam Katha with Bengal Katha — Assam Katha is 2,880 Sq Ft, while Bengal Katha is 720 Sq Ft.

Worked Examples

Example 1: Convert 2 Assam Bigha to Square Feet

2 \times 14{,}400 = 28{,}800 Sq Ft

Example 2: Convert 3 Katha 10 Lessa to Square Feet

(3 \times 2{,}880) + (10 \times 144) = 8{,}640 + 1{,}440 = 10{,}080 Sq Ft

Example 3: Convert 1 Acre to Assam Bigha

43{,}560 \div 14{,}400 \approx 3.025 Assam Bigha

How to Do Land Measurement Online for Assam

1.Open the Assam land measurement tool.

2.Enter the value from your deed (Bigha / Katha / Lessa).

3.Convert to Acre, Sq Ft, or Sq Meters for bank, registry, or sale negotiations.

4.Cross-check with the online land area calculator if you have plot side lengths.

Frequently Asked Questions

What is land measurement in Assam based on?

Assam land measurement is based on Bigha, Katha, and Lessa (Lecha), with 1 Assam Bigha = 14,400 square feet.

How many Lessa make 1 Bigha in Assam?

Exactly 100 Lessa make 1 Assam Bigha.

Is Assam Lessa the same as Lecha?

Yes — Lessa and Lecha refer to the same Assam land unit of 144 square feet.

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