Nepal Land Area Converter

Nepal has two land systems, not one

This is the mistake that costs real money. One Bigha is about 13.31 Ropani. The Terai uses Bigha–Katha–Dhur; the hills and the Kathmandu valley use Ropani–Aana–Paisa–Dam. A converter that offers a single “Nepal” unit, or that quietly reuses the Indian Bigha (a different size again), is not slightly off on hill land — it is describing a different plot.

Why this one is exact

Both systems are defined in feet, not metres: a Ropani is 74 ft × 74 ft = 5,476 sq ft, and a Bigha is 270 ft × 270 ft = 72,900 sq ft. Everything else is an exact fraction of those. Storing the rounded metric values instead (508.74 m², 6,772.63 m²) bakes in error at the top and compounds it through every subdivision. This converter derives metric once, from the exact international foot, and reproduces every published figure: 338.63 m² per Katha, 16.93 per Dhur, 31.80 per Aana, 7.95 per Paisa, 1.99 per Dam.

Compound notation

Land papers do not say “1.27 ropani”. They say 1-4-2-3 — one Ropani, four Aana, two Paisa, three Dam. Short forms are read from the largest unit down, so 1-4 is one Ropani and four Aana. The smallest level keeps its fraction rather than being rounded away: one Dhur is nearly 17 m², which is not a rounding error.

Sources

• Traditional definitions: 1 Ropani = 74 ft × 74 ft; 1 Bigha = 270 ft × 270 ft.
• Cross-checked 26 August 2026 against published metric equivalents and the widely cited ratio of 1 Bigha = 13.31 Ropani, all of which this derivation reproduces.

A conversion aid, not a survey. For a transaction, use the figure on the official lalpurja and your Malpot office. Nothing you type leaves your device.