Land Measurement Units in Nepal: Ropani, Bigha & Conversion Guide (2026)

Nepal uses two entirely different systems of land measurement depending on the geographic region — the Ropani system in the hills and mountains and the Bigha system in the Terai plains. If you are buying, selling, or inheriting land anywhere in Nepal, understanding these measurement units is not optional. Mistakes in converting between units have led to thousands of property disputes, overpriced transactions, and fraudulent land deals across the country.

This guide explains every land measurement unit used in Nepal, provides accurate conversion tables, covers the legal framework governing land surveys, and shows how measurement units appear on official documents like the Lal Purja (Jagga Dhanipurja). Whether you are a first-time property buyer, a real estate professional, or a Nepali living abroad planning to invest in land, this is the reference you need.

Our legal team at court marriage in Nepal regularly assists clients with land verification, property documentation, and resolving measurement-related disputes. If you need help understanding your land documents or verifying measurements before a purchase, we can help.

Need help with land measurement verification? Contact our property law team for document review and land survey assistance.

Why Land Measurement Matters in Nepal

Land is the most valuable asset for most Nepali families. According to the Central Bureau of Statistics, over 65% of Nepali households own some form of land. Yet land disputes account for roughly 40% of all civil cases pending in Nepal's courts. A significant portion of these disputes arise from measurement errors, boundary disagreements, and confusion between measurement systems.

Understanding land measurement units matters for several critical reasons:

• Property transactions: When buying property in Nepal, the price is quoted per unit area — per Aana in Kathmandu, per Kattha in Terai towns. Misunderstanding the unit leads to overpayment or underpayment.
• Land registration: The land registration process at the Malpot Office uses specific measurement units on all official documents. Discrepancies between the Lal Purja and actual survey measurements can halt the registration process.
• Legal disputes: Courts reference the exact measurements recorded in the Napi Naksha (survey map) when resolving boundary disputes. Incorrect measurements in sale agreements can invalidate contracts.
• Inheritance and partition: When dividing ancestral property among heirs, accurate measurement is essential for fair distribution under Part 4 of the Muluki Civil Code 2074.
• Taxation: Property tax and land revenue are calculated based on the area of land ownership. Wrong measurements mean wrong tax assessments.

Two Systems of Land Measurement in Nepal

Nepal is divided into three ecological zones — Mountain, Hill, and Terai. The measurement system used depends on which zone the land is located in. This dual system has historical roots going back centuries, long before Nepal's formal land survey began in the 1960s.

Hill and Mountain Region: Ropani System

The Ropani system (Ropani Paddhati) is used in all hill and mountain districts of Nepal, including the Kathmandu Valley, Pokhara, and other major hill cities. The hierarchy of units from largest to smallest is:

1 Ropani = 16 Aana = 64 Paisa = 256 Dam

This system is deeply embedded in daily property transactions in the hill regions. In Kathmandu Valley, land prices are commonly quoted per Aana. In less urbanized hill areas, prices may be quoted per Ropani.

Terai Region: Bigha System

The Bigha system (Bigha Paddhati) is used in all Terai districts — the flat southern plains bordering India. This system is also used in the inner Terai valleys. The hierarchy of units from largest to smallest is:

1 Bigha = 20 Kattha = 400 Dhur

In the Terai, land prices are typically quoted per Kattha for residential plots and per Bigha for agricultural land. The Bigha system units are significantly larger than Ropani system units — 1 Bigha equals approximately 13.31 Ropani.

Hill Region: Ropani System — Detailed Breakdown

The Ropani system is the measurement standard for hill districts. Here is a detailed breakdown of each unit with conversions to metric and imperial measurements.

Conversion Table: Ropani System

Understanding Each Unit

Ropani (रोपनी): The largest unit in the hill system. One Ropani is approximately 5,476 square feet or 508.72 square meters. In Kathmandu, a standard residential plot ranges from 4 Aana (approximately 1,369 sq ft) to 8 Aana (approximately 2,738 sq ft). Wealthier neighborhoods may have plots of 1 Ropani or larger.

Aana (आना): The most commonly referenced unit in urban hill areas. One Aana equals 342.25 square feet or approximately 31.80 square meters. Real estate listings in Kathmandu, Lalitpur, and Bhaktapur almost always quote prices per Aana. Current prices in prime Kathmandu areas can range from NPR 30 lakh to over NPR 2 crore per Aana depending on location.

Paisa (पैसा): One Paisa equals 85.56 square feet. This unit is used when dealing with smaller plots or when calculating fractional areas. It should not be confused with the monetary unit of the same name.

Dam (दाम): The smallest unit in the Ropani system, equal to 21.39 square feet. Dam measurements appear on Lal Purja documents when recording precise land areas. For example, a plot might be listed as "4 Aana 2 Paisa 3 Dam" for exact documentation.

Common Ropani System Conversions

Terai Region: Bigha System — Detailed Breakdown

The Bigha system is used throughout the Terai belt and inner Terai valleys. The units are substantially larger than the Ropani system because agricultural plots in the Terai are typically much larger than hill region plots.

Conversion Table: Bigha System

Understanding Each Unit

Bigha (बिघा): The largest standard unit in the Terai system. One Bigha equals 72,900 square feet or approximately 6,772.63 square meters (0.6773 hectares). Agricultural land in the Terai is primarily measured in Bigha. The land ceiling under the Land Act 2021 (1964) limits individual ownership to 10 Bigha in the Terai — this is approximately 67,726 square meters or about 16.74 acres.

Kattha (कट्ठा): One Kattha equals 3,645 square feet or approximately 338.63 square meters. Residential plots in Terai towns like Bharatpur, Butwal, Nepalgunj, and Biratnagar are commonly measured in Kattha. A typical residential plot in a Terai city ranges from 2 to 5 Kattha.

Dhur (धुर): The smallest unit in the Bigha system, equal to 182.25 square feet or approximately 16.93 square meters. Dhur appears on Lal Purja documents when recording precise measurements. A plot might be documented as "3 Kattha 15 Dhur" for exact area specification.

Common Bigha System Conversions

Cross-System Conversion: Ropani to Bigha

When comparing land prices between hill and Terai regions, or when a person from one region is buying land in another, you need to convert between the two systems. This is also essential for NRNs and investors evaluating property across different parts of Nepal.

The simplest way to convert between the two systems is to first convert the measurement to square feet or square meters, and then convert from that standard unit to the target system.

Standard International Units Comparison

For international buyers, NRNs, and anyone comparing land areas across countries, here is how Nepali measurement units relate to standard international units.

Legal Framework for Land Measurement in Nepal

Nepal's land survey and measurement system is governed by specific legislation. Understanding this framework is important for anyone involved in land transactions or disputes.

Key Laws Governing Land Measurement

The Land Survey and Measurement Act 2019 BS

This is the primary legislation governing how land is officially measured in Nepal. Key provisions include:

• Section 3: The Government of Nepal may conduct land surveys in any area and appoint survey officers for the purpose
• Section 6: Landowners must cooperate with survey officers and provide access to their land during official surveys
• Section 8: The survey officer prepares the field book (Sravekshan Kitab) recording measurements, boundaries, and ownership details
• Section 9: After the survey is complete, the Napi Naksha (survey map) is prepared and made available for public inspection
• Section 11: Objections to survey results must be filed within 35 days of public notice
• Section 15: Tampering with survey markers (Killa) or boundary stones is a criminal offense punishable under the National Criminal Code 2074

Land Ceiling Limits by Region

The Land Act 2021 (1964), as amended, sets maximum land ownership ceilings using the respective regional measurement systems:

Any land purchase that pushes the buyer above these ceiling limits is prohibited by law. Buyers should verify their existing landholdings before purchasing additional property. For detailed guidance on the purchase process, see our guide on buying property in Nepal.

How Land Measurements Appear on the Lal Purja

The Lal Purja (Jagga Dhanipurja) is the official land ownership certificate issued by the Land Revenue Office. It is the single most important land document in Nepal, and every Lal Purja includes the exact area of the land parcel in the appropriate regional measurement system.

Reading Measurements on the Lal Purja

On a Lal Purja from a hill district, the land area is recorded in the format:

Ropani-Aana-Paisa-Dam (e.g., 0-8-2-0 means 8 Aana 2 Paisa)

On a Lal Purja from a Terai district, the format is:

Bigha-Kattha-Dhur (e.g., 0-5-10 means 5 Kattha 10 Dhur)

Key Land Documents That Reference Measurements

When registering a land transfer, both the buyer and seller must verify that the area on the Lal Purja matches the Napi Naksha. Any discrepancy must be resolved at the District Survey Office (Napi Karyalaya) before registration can proceed.

Land Survey Process in Nepal

Nepal has been conducting land surveys since 2019 BS (1963 AD). The Department of Survey (Napi Bibhag) under the Ministry of Land Management, Cooperatives and Poverty Alleviation is the authority responsible for land surveys across the country.

Types of Land Surveys

• Cadastral Survey (Kitta Napi): The primary survey that maps and measures every land parcel in a district. This creates the official Napi Naksha used for all transactions.
• Re-survey (Puna Napi): Conducted in areas where the original survey data is outdated or disputed. Re-surveys update measurements and resolve boundary issues.
• Partition Survey (Chhuttyaune Napi): Conducted when a single land parcel is being divided among multiple owners — common in inheritance cases.
• Amalgamation Survey (Ekikaran Napi): When multiple adjacent plots owned by the same person are merged into one parcel.

How to Request a Land Survey

To request a survey or re-survey, you must apply at the District Survey Office with the following documents:

• Application form with plot number (Kitta Number)
• Copy of Lal Purja
• Copy of citizenship certificate
• Tax clearance receipt from the local municipality
• Survey fee payment receipt

The survey officer will visit the land, take measurements using modern GPS and digital survey equipment, and prepare the updated Napi Naksha. The process typically takes 15 to 45 days depending on the district and workload.

Common Land Measurement Disputes in Nepal

Land measurement disputes are among the most common property-related conflicts in Nepal. Understanding these common issues can help you prevent them.

Discrepancy Between Lal Purja and Actual Area

The area recorded on older Lal Purjas may not match the actual physical area of the land. This happens because original surveys conducted decades ago used less accurate manual methods. When modern GPS surveys are conducted, the actual area may be larger or smaller than what is documented. This discrepancy must be resolved through a re-survey before any transaction.

Boundary Encroachment (Killa Michieko)

Neighbors gradually encroaching on adjacent land is extremely common in Nepal, especially in rural areas. Under Section 15 of the Land Survey and Measurement Act 2019, moving or destroying survey markers (Killa) is illegal. If you suspect encroachment, you can file a complaint at the District Survey Office or the local Ward Office.

Confusion Between Measurement Systems

When land is located near the boundary between hill and Terai districts, confusion can arise about which measurement system applies. The system is determined by the district classification, not by the actual terrain. Always check which system is used in the specific district where the land is located.

Facing a land measurement dispute? Contact our legal team for expert assistance with survey disputes, boundary conflicts, and Lal Purja corrections.

Digital Land Measurement Tools and Resources

Nepal's Department of Survey has been modernizing its systems. Several digital tools are now available for landowners and property professionals.

Online Resources

• DOLIS (Department of Land Information System): The official government system for accessing land records online at dolis.dos.gov.np
• LRIMS (Land Revenue Information Management System): Used by Malpot offices for digital land records and revenue collection
• Mobile Apps: Several Nepali apps like "Nepal Land Info" and "Bhumi Naksha" provide approximate conversions and survey map access, though these should not replace official documents

GPS Survey in Nepal

Modern land surveys in Nepal increasingly use GPS technology and Total Station instruments for accurate measurements. The Department of Survey has been transitioning from traditional chain survey methods to digital GPS-based surveys since the early 2000s. GPS surveys provide accuracy within centimeters, significantly reducing measurement disputes.

Practical Conversion Examples

Here are real-world conversion examples that property buyers and sellers commonly need.

Example 1: Converting a Kathmandu Plot

A plot listed as "4 Aana 2 Paisa" in Kathmandu:

• 4 Aana = 4 x 342.25 = 1,369 sq ft
• 2 Paisa = 2 x 85.56 = 171.12 sq ft
• Total: 1,540.12 sq ft (approximately 143.1 sq m)

Example 2: Converting a Terai Plot

A plot listed as "3 Kattha 10 Dhur" in Chitwan:

• 3 Kattha = 3 x 3,645 = 10,935 sq ft
• 10 Dhur = 10 x 182.25 = 1,822.5 sq ft
• Total: 12,757.5 sq ft (approximately 1,185.1 sq m)

Example 3: Cross-System Comparison

If you own 8 Aana in Kathmandu and want to know the Bigha equivalent:

• 8 Aana = 8 x 342.25 = 2,738 sq ft
• In Bigha system: 2,738 / 3,645 = approximately 0.751 Kattha (or about 15 Dhur)

Tips for Property Buyers on Land Measurement

Whether you are buying land in the hills or Terai, follow these practical steps to avoid measurement-related problems:

• Always verify at the Survey Office: Do not rely solely on the Lal Purja. Visit the District Survey Office and request the Napi Naksha for the specific plot number to confirm the exact area and boundaries.
• Hire a licensed surveyor: Before purchasing, hire a licensed surveyor (Napi Garne) to independently measure the plot and compare it with official records.
• Check the measurement system: Confirm which system is used in the specific district. Do not assume based on terrain alone.
• Inspect boundary markers: Physically visit the land and check for survey markers (Killa). Missing or displaced markers are a red flag.
• Get measurements in writing: The agreement or Sale Agreement (Baikalpatra) should clearly state the area in both local units and square feet or square meters.
• Verify land ceiling: Ensure the purchase does not push your total ownership above the legal ceiling limit for that region.

Land Measurement and Property Tax

Land tax (Malpot) in Nepal is assessed based on the area of land you own. The local municipality or rural municipality sets tax rates per unit area, and different rates apply based on land use classification.

When filing your income tax returns, rental income from land and property must be declared. If you own multiple plots across different districts, your tax obligations depend on the total area of ownership in each district, calculated in the respective regional measurement system.

For land registration, the registration fee is typically 4% of the transaction value. The government minimum valuation is set per unit area — per Aana in hill districts and per Kattha or Dhur in Terai districts. This minimum valuation varies by ward and is updated by local governments periodically.

Conclusion

Land measurement in Nepal may seem complex because of the dual system, but once you understand the Ropani hierarchy (Ropani-Aana-Paisa-Dam) for hill districts and the Bigha hierarchy (Bigha-Kattha-Dhur) for Terai districts, conversions become straightforward. The critical step is always verifying official records — the Lal Purja and Napi Naksha — before any transaction.

Whether you are buying your first plot of land, resolving an inheritance dispute, or investing in real estate, accurate measurement knowledge protects you from fraud, overpayment, and legal disputes. When in doubt, always consult the District Survey Office or seek professional legal advice.

Need expert help with land documents, measurement verification, or property transactions? Contact our legal team today for professional assistance with all land and property matters in Nepal.