Land Area Converter: Ropani, Aana, Bigha, Kattha & Haat
Nepal uses two different traditional land measurement systems depending on the region: the hill system (Ropani-Aana-Paisa-Daam), standard across the hills and mountains, and the Terai system (Bigha-Kattha-Dhur), standard in the southern plains. The calculator above converts between both, plus square feet and square metres, all through the same exact constants.
In some hill areas, small house plots are instead quoted in Haat (a hand/cubit-length unit, about 1.5 feet) as a length × width, rather than in Ropani directly -- the calculator's Haat section handles that conversion too.
Land Area Converter
Convert Nepali land area between Ropani-Aana-Paisa-Daam, Bigha-Kattha-Dhur, and square feet/metres -- instantly, in your browser.
Ropani - Aana - Paisa - Daam (hill system)
Bigha - Kattha - Dhur (Terai system)
Haat (हात) system — plot length x width
Common in the hills for small house plots quoted as "so many haat by so many haat" rather than in Ropani. 1 Haat = 1.5 ft (18 inches).
Quick convert: square feet or square metres
Enter either value -- the other one, and both traditional systems, fill in automatically.
Uses the officially published conversion constants (1 Ropani = 5476 sq.ft; 1 Bigha = 72900 sq.ft; 1 Haat = 1.5 ft; 1 sq.ft = 0.092903 sq.m). Ropani-system figures are standard across the hills; Bigha-system figures are the standard Terai measure; the Haat (hand) figure is the common informal length used to quote small hill house plots -- some districts use slightly different local variants, so confirm against your land document (lalpurja) for legal or transaction purposes.
Frequently Asked Questions
How many square feet is 1 Ropani?
1 Ropani = 5,476 square feet, which is 508.74 square metres.
1 Aana is how many square metres?
1 Aana = 342.25 square feet, which is about 31.80 square metres. There are 16 Aana in 1 Ropani.
1 Bigha is how many Kattha?
1 Bigha = 20 Kattha = 400 Dhur. In square feet, 1 Bigha = 72,900 sq ft (6,772.63 sq m).
How do I convert Ropani to Bigha?
Enter your Ropani-Aana-Paisa-Daam figures in the calculator above -- it converts through square feet automatically and shows the exact equivalent in Bigha-Kattha-Dhur underneath.
How many Ropani is 1 Aana?
1 Aana is 1/16 of a Ropani (16 Aana = 1 Ropani = 5,476 sq ft).
How do I convert Haat to Aana?
Haat is a length (about 1.5 ft), not an area, so there is no single fixed "Haat to Aana" number on its own -- you need both the length and width of the plot in Haat. Enter both in the Haat section of the calculator above and it converts the resulting area directly into Aana, along with every other unit.