Land UnitsKatha (also kattha or cottah) is the plot unit of eastern India. Like the bigha, it has no single size. We print only the two that appear in the Government of India land records data standard.
Assam: bigha, katha, lessa
The standard gives 1 lessa = 144 square feet, which is a square of 12 feet by 12 feet, and lists 20 lessa as 2,880 square feet. That 20 lessa block is the Assam katha. The Assam bigha is 14,400 square feet (3.025 bigha to the acre in the Statistical Handbook of Meghalaya, which uses the same bigha), so a bigha holds 5 katha or 100 lessa.
One note of care: the wording of the Assam lines in the standard's table is muddled, and it labels the 2,880 square feet block a bigha in one place. The arithmetic above is the reading that agrees with the handbook figure of 3.025 bigha to the acre.
Jharkhand
The standard gives the Jharkhand katha as 66.89 square metres. That is 720 square feet. It gives the dismil as 40.46 square metres, one hundredth of an acre, so a Jharkhand katha is about 1.65 dismil.
Bihar and West Bengal
Katha is the main unit in both, with dhur in Bihar and chatak in West Bengal below it. Sizes there vary by district, and we did not find an official table we could read. Use your own deed's figure with "My local unit" in the converter.
Katha (Assam): ready table
| Katha (Assam) | Square feet | Square yards | Acres |
|---|---|---|---|
| 1 | 2,880 | 320 | 0.0661 |
| 2 | 5,760 | 640 | 0.1322 |
| 3 | 8,640 | 960 | 0.1983 |
| 4 | 11,520 | 1,280 | 0.2645 |
| 5 | 14,400 | 1,600 | 0.3306 |
| 6 | 17,280 | 1,920 | 0.3967 |
| 7 | 20,160 | 2,240 | 0.4628 |
| 8 | 23,040 | 2,560 | 0.5289 |
| 9 | 25,920 | 2,880 | 0.595 |
| 10 | 28,800 | 3,200 | 0.6612 |
| 15 | 43,200 | 4,800 | 0.9917 |
| 20 | 57,600 | 6,400 | 1.3223 |
| 25 | 72,000 | 8,000 | 1.6529 |
| 30 | 86,400 | 9,600 | 1.9835 |
| 40 | 1,15,200 | 12,800 | 2.6446 |
| 50 | 1,44,000 | 16,000 | 3.3058 |
| 75 | 2,16,000 | 24,000 | 4.9587 |
| 100 | 2,88,000 | 32,000 | 6.6116 |
For a sale, a loan or a court paper, go by your own revenue record. Local units can differ between districts and between old and new records. The sizes here were read in the official documents named under Sources on 11 November 2026. This site is not a government site and gives no legal advice.
Questions people ask
How many square feet is 1 katha (Assam)?
1 katha (Assam) is 2,880 square feet, which is 320 square yards or 267.56 square metres. Source: the Government of India land records data standard.
How many square feet is 1 lessa?
1 lessa is 144 square feet, which is 16 square yards or 13.38 square metres. Source: the Government of India land records data standard.
How many square feet is 1 katha (Jharkhand)?
1 katha (Jharkhand) is 719.998 square feet, which is 79.9998 square yards or 66.89 square metres. Source: the Government of India land records data standard.
Sources
- Meta Data and Data Standards (MDDS), Annexure IV, code directory CD00.01 Measurement units, Table 1.3 Conversion Factors. Ministry of Electronics and IT, Government of India; the table credits the Department of Land Resources. Open the document