Type a value into any field below — every other unit updates instantly, all calculated from the same total area. Covers both the hill system (Ropani–Aana–Paisa–Daam) and the Terai system (Bigha–Kattha–Dhur), plus standard metric/imperial units.
Enter land area in the Ropani–Aana–Paisa–Daam system, used in hill and Kathmandu Valley regions. Type a value in any field and the rest update automatically.
Enter land area in the Bigha–Kattha–Dhur system, used across the Terai region. Type a value in any field and the rest update automatically.
Enter area in standard metric or imperial units. Values here sync with both the Ropani and Bigha systems above.
Nepal uses two different traditional land measurement systems depending on region. The Ropani–Aana–Paisa–Daam system is used in the hill and mountain regions, including the Kathmandu Valley, Pokhara, and most mid-hill districts — it evolved from terraced hill farming. The Bigha–Kattha–Dhur system is used across the Terai (the southern plains), shared with the wider North Indian tradition. Both are still what's printed on Lalpurja (land ownership certificates) and used in Malpot (land revenue) office records, so converting between them and standard metric units comes up constantly for property buyers, sellers, and surveyors.
| 1 Ropani | = 16 Aana = 5,476 sq ft ≈ 508.72 m² |
| 1 Bigha | = 20 Kattha = 72,900 sq ft ≈ 6,772.63 m² |
| 1 Bigha | ≈ 13.31 Ropani (approximate — the two systems don't divide evenly into each other) |
These are the standard published conversion constants used across Nepal's land revenue records. For legal, financial, or official transactions, always verify against your Lalpurja, survey record, or a licensed surveyor.
All three unit groups above stay in sync — enter a value anywhere and everything else recalculates instantly. Here's the full walkthrough, plus notes on which system applies where.
Find your unit group
Use Ropani–Aana–Paisa–Daam if your land is in the hills or Kathmandu Valley, or Bigha–Kattha–Dhur if it's in the Terai. Not sure which applies? Check your Lalpurja (land ownership certificate) — it's printed there.
Type your value into any field
You don't need to enter every unit — just the one you already have. If your Lalpurja says "2 Ropani 4 Aana," start by typing 2 into Ropani, note the result, then add 4 into Aana and read the combined total from the standard units on the right.
Read every equivalent at once
All three groups update together, so you instantly see the same area in Ropani, Bigha, square feet, square meters, acres, and hectares — no need to look up conversion tables or do the math by hand. Use Clear all to reset every field and start over.
Type your Ropani value into the Ropani field in the hill-system group — the Square Feet and Square Meter fields under Standard Units update at the same time, since every unit is calculated from the same underlying total area.
Enter your value in Bigha, Kattha, or Dhur, and the Ropani–Aana–Paisa–Daam fields on the left update automatically. Keep in mind the two systems don't divide evenly into each other — 1 Bigha is approximately 13.31 Ropani, so expect decimal results rather than a clean round number.
The Ropani system developed for terraced hill farming and is used across the hills, mountains, and the Kathmandu Valley. The Bigha system came from the Terai's shared agricultural tradition with North India. Both remain legally valid and are what's printed on land ownership documents depending on where the land is located — this tool doesn't pick one as "correct," it just converts accurately between whichever systems you need.
This tool uses the standard published conversion constants used in Nepal's land revenue records, so the math itself is correct. That said, for anything legally or financially binding — a sale, a loan, a dispute — always cross-check against your actual Lalpurja, survey record, or a licensed surveyor rather than relying on any online calculator alone.
No. The conversion runs entirely in JavaScript in your browser — nothing you enter is sent to a server, stored, or logged, which matters given how sensitive property details often are.