Nepal Land Unit Converter

Why Nepal Still Needs Two Land Measurement Systems, and a Converter Between Them

Sarita's family sold a small plot in Kaski to help pay for her brother's studies abroad. The Lalpurja read "2 Ropani 6 Aana." The buyer, relocating from Biratnagar, kept asking what that meant in Bigha, the unit he actually understood. Sarita's father did what most Nepalis still do in that situation: he pulled out a calculator, guessed at a conversion factor half-remembered from a bank loan years earlier, and hoped the number was close enough. It wasn't, by about eleven percent. That gap became an awkward renegotiation at the notary's desk.

This kind of mismatch happens constantly in Nepal because the country never fully retired its older land units in favour of the metric system, and it likely never will, since Ropani, Aana, Bigha, and Kattha are printed directly on Lalpurja (land ownership certificates), used in Malpot (land revenue) office records, and are how most families still describe land at the dinner table. Hill districts, including Kathmandu Valley, Pokhara, and most of the mid-hills, use the Ropani-Aana-Paisa-Daam system. The Terai plains, from Jhapa to Kanchanpur, use Bigha-Kattha-Dhur instead. Neither system is going away, and a buyer or seller who only understands one of them is at a real disadvantage in a negotiation. This page exists to remove that disadvantage: type a value in any unit, in either system, or in square meters, square feet, acres, or hectares, and every other field updates instantly using the exact same underlying area.

Ropani System vs Bigha System: What Each Unit Actually Breaks Down To

Both systems are internally consistent once you learn the pattern, but neither pattern is obvious from the unit names alone, and the two systems don't share a common sub-unit, which is exactly why manual conversion goes wrong so often.

How Big Is Each Unit, Side by Side

Numbers like 508.74 and 2,000 don't mean much until they're placed next to each other. This chart lines up every unit by its square-meter equivalent, so the jump from a Dhur to a Hectare is easy to see at a glance.

Bar length is scaled against 1 Hectare (10,000 m²), the largest unit shown here.

What These Units Look Like in Real Life

Square meters are precise but hard to picture. These comparisons use familiar spaces to make each unit easier to visualise before you walk a plot in person.

Every Unit Against Every Unit, in One Table

This is the table worth bookmarking. Each row shows what one full unit equals across every other unit this page supports. Click any row and the calculator above fills in automatically with that exact area, ready to fine-tune.

Who Reaches for a Land Unit Converter, and Why

Land conversion isn't a niche need in Nepal, it comes up constantly across very different situations.

Property buyers and sellers comparing a hill-region listing against a Terai one need a fast, trustworthy way to put both on the same footing before making an offer. Diaspora Nepalis buying ancestral or investment land from abroad often only know square feet or acres from the country they live in now, and need a bridge back to the Ropani or Bigha figure printed on the family Lalpurja. Banks and cooperatives processing land-collateral loans need the exact area in square meters to apply per-square-meter valuation rates, since loan officers can't lend against a Ropani figure directly. Real estate agents and brokers juggle listings in whichever unit the seller used, and need to standardise everything for a client comparison sheet. Surveyors, engineers, and architects convert between units routinely during Napi (survey) work and building design, where site plans are drawn in square meters but land parcels are registered in Ropani or Bigha. Families dividing inherited land among siblings need to split a Lalpurja figure into fair shares, often converting the total into smaller units like Aana or Dhur to divide cleanly. Students and Lok Sewa candidates studying land administration, survey, or revenue subjects are tested directly on these conversion factors. And farmers comparing yield or lease rates per Ropani against a neighbour's rate per Bigha need the same conversion just to compare fairly.

Where Manual Land Conversion Goes Wrong

• Assuming Bigha is the same everywhere. Bigha size varies by Indian state and even by historical region, but Nepal's Bigha is fixed at exactly 2,000 square meters. Applying an Indian Bigha figure to a Nepali plot produces a real error, not a rounding one.
• Confusing Aana the land unit with Aana the old currency subunit. Both names exist in Nepali history for different things; context always decides which one a document means, and land documents always mean the area unit.
• Rounding too early. A Lalpurja often lists area to two decimal Aana or Dhur places. Rounding that figure before converting compounds the error once it's multiplied out to square meters or a purchase price.
• Mixing hill and Terai units in one calculation without converting through square meters first. Ropani and Bigha have no shared sub-unit, so "converting" directly between them by feel, without the square-meter bridge, is guesswork.
• Trusting a remembered conversion factor from years ago. Verbal "1 Ropani is about X Bigha" estimates passed down in families are often close but not exact, and "close" is not good enough for a legal transaction.

Making Sense of the Area Written on Your Land Certificate

A Lalpurja issued in a hill district typically states area as Ropani-Aana-Paisa-Daam, for example "1-8-2-0," meaning 1 Ropani, 8 Aana, 2 Paisa, and 0 Daam. A Terai Lalpurja instead reads as Bigha-Kattha-Dhur, such as "0-15-10." Enter either figure into the matching fields above, one field at a time, or convert the whole area at once by entering just the largest unit if the smaller ones are zero, and every other unit, including the opposite system, fills in immediately. This is especially useful when a bank, buyer, or government office asks for the figure in a unit your paperwork doesn't already show.