Land chains & naapi · Clients, engineers & designers
Enter a whole land chain like 2-3-1-2 Ropani-Aana-Paisa-Daam or 1-5-10 Bigha-Kattha-Dhur and read it back in square feet, square metres, square inches or gaj—or type an area and let both chains fill themselves in. Also converts acre, hectare and sq. yd, with full reference tables.
Land chain calculator
Land is rarely one number on a lalpurja—it is written as a chain, like 2-3-1-2 Ropani-Aana-Paisa-Daam or 1-5-10 Bigha-Kattha-Dhur. Enter the whole chain here, or type an area and let both chains fill themselves in. Every row stays in step with the others.
Ropani-Aana-Paisa-Daam
Kathmandu Valley & hill districts
1-0-0-0 · 1 Ropani
Bigha-Kattha-Dhur
Terai districts
0-1-10 · 1 Kattha 10 Dhur · plus 8.5 sq. ft. left over (smaller than one dhur)
Or type an area
Both chains update as you type
1 Ropani = 16 Aana = 64 Paisa = 256 Daam = 5,476 sq. ft. · 1 Bigha = 20 Kattha = 400 Dhur = 72,900 sq. ft. Type in any row and the others follow. Whole units only—anything smaller than one Daam or one Dhur is shown as a leftover in square feet.
Your estimate
Instant conversion between metric, imperial and both Nepali land systems—hill (ropani, aana, paisa, daam) and Terai (bigha, kattha, dhur).
1 ropani = 16 aana
Conversions use the standard square-foot definitions of each unit. Registered plot areas on a lalpurja can differ slightly from a tape survey. Use the surveyed and registered figure for any transaction, tax or approval.
Quick reference
How the two systems relate
Popular searches this tool answers
Next steps after conversion
Reference tables
| Ropani | Square feet | Square metres | Aana |
|---|---|---|---|
| 0.25 ropani | 1,369 | 127.18 | 4 |
| 0.5 ropani | 2,738 | 254.37 | 8 |
| 1 ropani | 5,476 | 508.74 | 16 |
| 2 ropani | 10,952 | 1,017.47 | 32 |
| 3 ropani | 16,428 | 1,526.21 | 48 |
| 4 ropani | 21,904 | 2,034.95 | 64 |
| 5 ropani | 27,380 | 2,543.69 | 80 |
| 10 ropani | 54,760 | 5,087.37 | 160 |
| 15 ropani | 82,140 | 7,631.06 | 240 |
| 20 ropani | 109,520 | 10,174.74 | 320 |
| 25 ropani | 136,900 | 12,718.43 | 400 |
| 50 ropani | 273,800 | 25,436.85 | 800 |
| 100 ropani | 547,600 | 50,873.7 | 1,600 |
| Bigha | Square feet | Square metres | Kattha |
|---|---|---|---|
| 0.25 bigha | 18,225 | 1,693.16 | 5 |
| 0.5 bigha | 36,450 | 3,386.32 | 10 |
| 1 bigha | 72,900 | 6,772.63 | 20 |
| 2 bigha | 145,800 | 13,545.26 | 40 |
| 3 bigha | 218,700 | 20,317.89 | 60 |
| 5 bigha | 364,500 | 33,863.16 | 100 |
| 10 bigha | 729,000 | 67,726.32 | 200 |
| 20 bigha | 1,458,000 | 135,452.63 | 400 |
| 50 bigha | 3,645,000 | 338,631.58 | 1,000 |
| Unit | Divides into | Square feet | Square inches | Square metres |
|---|---|---|---|---|
| 1 Ropani | 16 Aana / 64 Paisa / 256 Daam | 5,476 | 788,544 | 508.737 |
| 1 Aana | 4 Paisa / 16 Daam | 342.25 | 49,284 | 31.7961 |
| 1 Paisa | 4 Daam | 85.5625 | 12,321 | 7.949 |
| 1 Daam | smallest hill unit | 21.3906 | 3,080.25 | 1.9873 |
| 1 Bigha | 20 Kattha / 400 Dhur | 72,900 | 10,497,600 | 6,772.6316 |
| 1 Kattha | 20 Dhur | 3,645 | 524,880 | 338.6316 |
| 1 Dhur | smallest Terai unit | 182.25 | 26,244 | 16.9316 |
Nepal uses 1 Bigha = 72,900 sq. ft. (6,772.63 sq. m). Some Indian states define a bigha differently, so a converter built for India will not match a Nepali lalpurja—check the figure against your registered deed.
Practical guide
Read the related guide for assumptions, ordering tips and ways to compare the estimate with actual site records.
Same-category tools first so each intent stays clustered—then open the full hub if you need a different job.
Frequently asked questions
1 Ropani is 5,476 square feet (508.74 square metres). It divides into 16 Aana of 342.25 sq. ft. each, 64 Paisa of 85.5625 sq. ft., or 256 Daam of 21.390625 sq. ft.
1 Bigha in Nepal is 72,900 square feet (6,772.63 square metres). It divides into 20 Kattha of 3,645 sq. ft. each, or 400 Dhur of 182.25 sq. ft. Some Indian states define a bigha differently, so an India-based converter will not match a Nepali lalpurja.
Yes. Enter the whole chain — for example 2 Ropani, 3 Aana, 1 Paisa, 2 Daam — in the four boxes and the tool converts it to square feet, square metres, square inches and gaj at once, and also shows the equivalent Bigha-Kattha-Dhur chain. Type an area instead and both chains fill themselves in.
The hill and Terai systems only meet through area. 1 Bigha (72,900 sq. ft.) equals about 13.3126 Ropani, and 1 Ropani equals about 1.5023 Kattha. Enter either chain in this tool and the other is calculated for you.
1 square foot is 0.002922 Aana, because one Aana is 342.25 square feet. To go the other way, divide your square footage by 342.25 — for example 1,000 sq. ft. is about 2.92 Aana, or 2 Aana 3 Paisa 2 Daam as a chain.
It uses the standard square-foot definitions of each unit, so the arithmetic is exact. The registered area on a lalpurja can still differ slightly from a tape survey. Use the surveyed and registered figure for any transaction, tax filing or municipal approval.