How are Nepal’s ropani and bigha land systems related to square feet?
The converter uses Nepal government-published relationships: one ropani equals 16 aana and 5,476 square feet; one bigha equals 20 kattha and 72,900 square feet; one kattha equals 20 dhur and 3,645 square feet. It converts through square metres while preserving the familiar compound-unit breakdowns.
How to use the tool
Choose the source unit
Select the hill, Terai, metric or imperial unit printed on the record.
Enter the area
Use a decimal amount or start from a compound-unit breakdown where the interface provides one.
Read both systems carefully
Review the result and the ropani–aana–paisa–daam or bigha–kattha–dhur breakdown.
At a glance
- 1 ropani
- 16 aana = 64 paisa = 256 daam = 5,476 ft²
- 1 aana
- 4 paisa = 16 daam = 342.25 ft²
- 1 bigha
- 20 kattha = 400 dhur = 72,900 ft²
- 1 kattha
- 20 dhur = 3,645 ft²
Two customary systems, one calculation base
Ropani, aana, paisa and daam are commonly associated with Nepal’s hill land system. Bigha, kattha and dhur are commonly associated with the Terai system. The unit names alone are not interchangeable, so the converter makes the system visible beside every result.
To reduce accumulated rounding, the calculation converts each unit through a square-metre base derived from the published square-foot relationships. Displayed decimal places are presentation, not a change to the underlying relationship.
- Confirm that a document uses the Nepal definition when it says bigha or kattha; neighbouring countries can use different regional values.
- Preserve the original units when transcribing a deed or valuation notice.
- Use survey records—not a general converter—to settle a property boundary.
- Treat “haat” as a customary length convention, not a land-area unit.
Rounding and legal records
Government documents can show square-metre equivalents rounded to two decimals while the traditional breakdown remains exact within the stated system. Small differences can therefore appear when a displayed rounded value is converted back and forth.
For a purchase, subdivision, tax filing or boundary dispute, use the measurements recorded by the authorised survey and land administration offices. This tool is an arithmetic aid and does not create a cadastral measurement.
Important limitations
- The bigha and kattha values are the Nepal definitions; regional definitions elsewhere can differ.
- Displayed metric values may be rounded even when the traditional-unit relationship is exact.
- The converter does not account for map projection, slope, boundary geometry or survey error.
- Legal property work requires the relevant cadastral and survey records.
Questions people ask
How many aana are in one ropani?
There are 16 aana in one ropani. Each aana contains four paisa, and each paisa contains four daam.
How many dhur are in one bigha?
Using the Nepal Terai relationship, one bigha contains 20 kattha and each kattha contains 20 dhur, so one bigha contains 400 dhur.
Is haat a land-area unit?
No. Haat is a customary length. The tool uses an explicitly labelled 18-inch convention for approximate length conversion, not cadastral area.
Primary and project sources
- Construction Handbook — Department of Urban Development and Building Construction, NepalGovernment handbook containing Nepal land-area conversion tables.
- Minimum land valuation booklet — Department of Land Management and Archive, NepalOfficial booklet listing hill and Terai unit relationships.
- National Sample Census of Agriculture 2021/22 — National Statistics Office, NepalOfficial use of the two land-unit systems in national data.
- SI length conversion — NISTPrimary reference for the exact international inch-to-metre relationship.