Nepali land area converter (Ropani, Aana, Bigha, Kattha & sq. ft.)
Convert accurately between Hill units (Ropani, Aana, Paisa, Daam), Terai units (Bigha, Kattha, Dhur), Square Feet, Square Metres, Acres, and Hectares.
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Nepali Land Area Converter
Hill · Terai · MetricKathmandu & hilly districts
1 Ropani = 16 Aana = 64 Paisa = 256 Daam = 5,476 sq. ft. (508.737 sq. m.). 1 Aana equals 342.25 sq. ft.
Southern plains of Nepal
1 Bigha = 20 Kattha = 400 Dhur = 72,900 sq. ft. (6,772.63 sq. m.). 1 Kattha equals 3,645 sq. ft. (approx. 10.65 Aana).
Compare all systems at once
Every conversion automatically displays the equivalent Ropani/Aana, Bigha/Kattha, Square Feet, and Square Metres together.
How to use the Nepali land area converter
Enter your numeric area, select the starting unit (such as Ropani, Aana, Bigha, Kattha, or Square Feet), and choose your target unit. The result box updates immediately with the exact converted value plus a side-by-side summary across the Hill (Ropani/Aana), Terai (Bigha/Kattha), and Metric/Imperial (sq. ft. / sq. m.) systems.
Avoid the decimal trap with mixed Ropani-Aana or Bigha-Kattha records
In Nepal lalpurja (land ownership certificates), areas are written as hyphenated subunits such as 0-4-2-0 (0 Ropani, 4 Aana, 2 Paisa, 0 Daam). Because there are 16 Aana in 1 Ropani (not 10), 1 Ropani 8 Aana is 1.5 Ropani, never 1.8 Ropani. Similarly, because there are 20 Kattha in 1 Bigha, 1 Bigha 10 Kattha is 1.5 Bigha.
Typical residential plot sizes and Kitta / Lalpurja verification in Nepal
In urban municipalities across the Kathmandu Valley (Kathmandu, Lalitpur, and Bhaktapur) and Pokhara, residential building plots (ghaderi) are commonly traded in Aana—with typical urban plots ranging from 3 Aana to 5 Aana (1,026.75 sq. ft. to 1,711.25 sq. ft.). In Terai municipalities such as Biratnagar, Janakpur, Birgunj, Butwal, and Nepalgunj, residential plots are commonly measured in Dhur and Kattha (for example, 10 Dhur = 1,822.50 sq. ft., or roughly 5.325 Aana). Always check the metric Square Metre column on newer digital lalpurja certificates as your primary cross-check.
Complete Nepal land unit conversion table
| Nepali Land Unit | Subunit Breakdown | Square Feet (sq. ft.) | Square Metres (sq. m.) |
|---|---|---|---|
| 1 Ropani (रोपनी) | 16 Aana / 64 Paisa / 256 Daam | 5,476.00 sq. ft. | 508.74 sq. m. |
| 1 Aana (आना) | 4 Paisa / 16 Daam | 342.25 sq. ft. | 31.796 sq. m. |
| 1 Paisa (पैसा) | 4 Daam | 85.5625 sq. ft. | 7.95 sq. m. |
| 1 Daam (दाम) | Smallest Hill unit | 21.3906 sq. ft. | 1.99 sq. m. |
| 1 Bigha (बिघा) | 20 Kattha / 400 Dhur (approx. 13.31 Ropani) | 72,900.00 sq. ft. | 6,772.63 sq. m. |
| 1 Kattha (कठ्ठा) | 20 Dhur (approx. 10.65 Aana) | 3,645.00 sq. ft. | 338.63 sq. m. |
| 1 Dhur (धुर) | Smallest Terai unit | 182.25 sq. ft. | 16.93 sq. m. |
| 1 Hectare (Metric) | 10,000 sq. m. (approx. 19.6565 Ropani / 1.4765 Bigha) | 107,639.10 sq. ft. | 10,000.00 sq. m. |
| 1 Acre (Imperial) | 43,560 sq. ft. (approx. 7.9547 Ropani / 0.5975 Bigha) | 43,560.00 sq. ft. | 4,046.86 sq. m. |
Common questions
How many Aana are in 1 Kattha?
1 Kattha is 3,645 sq. ft. and 1 Aana is 342.25 sq. ft., so 1 Kattha equals approximately 10.6501 Aana.
How many Ropani are in 1 Bigha?
1 Bigha (72,900 sq. ft.) divided by 1 Ropani (5,476 sq. ft.) equals approximately 13.3126 Ropani.
Can I use this calculation in place of an official amin/surveyor map?
Use this converter as a mathematical reference. Actual plot boundaries, road setbacks, and legal transfers rely on certified Nepal Survey Department (Napi) maps and lalpurja records.
How many Square Feet and Square Metres are in a 4 Aana residential plot?
Since 1 Aana = 342.25 sq. ft., a 4 Aana plot equals exactly 1,369.00 square feet, or approximately 127.184 square metres (one-quarter of a Ropani).
How do I convert a lalpurja area like 0-4-2-0 (Ropani-Aana-Paisa-Daam)?
Convert each subunit to Paisa or Daam first (4 Aana = 16 Paisa; plus 2 Paisa = 18 Paisa total), then enter 18 Paisa into the converter to get 1,540.125 sq. ft. (4.5 Aana).
Need to verify a source or report an issue?
All formulas, datasets, and official references used on Yannis are documented openly.