1 kattha is equal to 3645 square feet, or about 338.63 square metres. One kattha has 20 dhur, and 20 kattha make 1 bigha.
This is the land measuring system used across the Terai, from Jhapa to Kanchanpur. Below you will find how the numbers are built, a table that converts bigha, kattha and dhur to sq ft, m² and ropani, and a worked example.
Bigha, kattha and dhur in square feet
- 1 bigha = 20 kattha = 72,900 sq ft
- 1 kattha = 20 dhur = 3645 sq ft
- 1 dhur = 182.25 sq ft
The neat way to remember this: a bigha is a square 270 ft by 270 ft (270 × 270 = 72,900). A dhur is a square 13.5 ft by 13.5 ft (13.5 × 13.5 = 182.25). A kattha is not a whole-number square, but it fits as a rectangle of 67.5 ft by 54 ft, which gives 3645 sq ft.
To change square feet into square metres, multiply by 0.09290304. So 1 kattha = 3645 × 0.09290304 = 338.63 m².
Kattha conversion table
| Area | Square feet | Square metres | Ropani |
|---|---|---|---|
| 1 dhur | 182.25 | 16.93 | 0.033 |
| 5 dhur | 911.25 | 84.66 | 0.166 |
| 10 dhur | 1822.5 | 169.32 | 0.333 |
| 1 kattha | 3645 | 338.63 | 0.666 |
| 2 kattha | 7290 | 677.26 | 1.331 |
| 5 kattha | 18,225 | 1693.16 | 3.328 |
| 10 kattha | 36,450 | 3386.32 | 6.656 |
| 1 bigha | 72,900 | 6772.63 | 13.313 |
Ropani values are found by dividing square feet by 5476. One kattha is also about 10.65 aana.
Worked example
A plot in Birgunj is listed as 2 bigha, 5 kattha and 10 dhur.
2 × 72,900 = 145,800 sq ft. 5 × 3645 = 18,225 sq ft. 10 × 182.25 = 1822.5 sq ft. Total = 165,847.5 sq ft, which is 15,407.74 m² or about 30.29 ropani.
The Jagga Napi land area converter does these steps for you in both systems. For hectares, acres or other units, the engineering unit converter helps.
Frequently asked questions
How many dhur are in 1 kattha?
There are 20 dhur in 1 kattha, and 400 dhur in 1 bigha.
Is 1 kattha bigger than 1 ropani?
No. 1 kattha (3645 sq ft) is about two thirds of a ropani (5476 sq ft). Put the other way, 1 ropani is about 1.5 kattha.
How many hectares is 1 bigha?
1 bigha is 6772.63 m², which is about 0.677 hectare. For any land deal, go by the figures on the lalpurja and the survey office record.
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