Convert Bigha (Assam) to Hectare
Convert bighas to hectares instantly. 1 bigha (assam) = 0.13378 hectare — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Hectare to Bigha (Assam) converter for the reverse conversion.
Units explained
Bigha (Assam)
An Assam bigha is a traditional unit of land area used in Assam and parts of Northeast India, equal to approximately 1337.8 m² (functionally identical to the Bengal bigha).
Derived from the same colonial Bengali standardization that produced the Bengal bigha. Assam land records share much of Bengal's traditional unit system.
Assam bighas are used in property transactions and agricultural records across Assam and several other Northeast states. The unit equals 14,400 sq ft.
Standardized in colonial Bengal/Northeast India administration.
Hectare
A hectare is a metric unit of area equal to 10,000 square meters, or one square hectometer. It is the most widely used metric unit for land measurement worldwide.
Defined as 100 ares, equal to one square hectometer. The name was introduced in 1795 in France as part of the metric system.
Hectares are the standard unit for agricultural land measurement worldwide except in the US (which uses acres). 1 hectare equals 2.47105 acres. In India, hectares are used in modern agricultural census and land records alongside traditional regional units.
Adopted in France in 1795; standardized internationally through the SI system.
Bigha (Assam) to Hectare conversion formula
The relationship between bighas and hectares:
To convert bighas to hectares, multiply the value in bighas by 0.13378. To reverse, multiply hectares by 7.4749588877.
How to use this converter
Type a value into the calculator. The result in hectares updates as you type. Tap a quick value, copy the result with one click, or use the swap arrow to jump straight to the Hectare to Bigha (Assam) converter for the reverse direction.
Step-by-step: convert bighas to hectares
- Write down the value in bighas (bigha).
- Multiply that value by the factor 0.13378.
- The product is the equivalent value in hectares (ha).
- To reverse, multiply the hectare value by 7.4749588877.
Worked examples
Example 1 — Convert 1 bigha to ha:
1 × 0.13378 = 0.13378 ha
Example 2 — Convert 100 bigha to ha:
100 × 0.13378 = 13.378 ha
Real-world example — Road-sign distances across systems
A 100-bigha (assam) road sign converts cleanly into hectares — exactly the conversion drivers planning trips abroad rely on when reading road signs in a different measurement system.
100 bigha × 0.13378 = 13.378 ha
Real-world example — Endurance race distances
A 50-bigha (assam) cycling or running race converts to a recognizable distance in hectares. Endurance athletes coming from a different measurement system use this conversion to compare training plans across regions.
50 bigha × 0.13378 = 6.689 ha
Real-world example — Maritime exclusion zone
A 200-bigha (assam) exclusion zone (a common maritime boundary) converts to a different value in hectares that's useful when describing the same zone in everyday land-distance units.
200 bigha × 0.13378 = 26.756 ha
Bigha (Assam) to Hectare conversion table
Standard reference values for converting bighas to hectares:
| Bigha (Assam) [bigha] | Hectare [ha] |
|---|---|
| 0.01 | 0.0013378 |
| 0.1 | 0.013378 |
| 1 | 0.13378 |
| 2 | 0.26756 |
| 3 | 0.40134 |
| 4 | 0.53512 |
| 5 | 0.6689 |
| 10 | 1.3378 |
| 20 | 2.6756 |
| 30 | 4.0134 |
| 40 | 5.3512 |
| 50 | 6.689 |
| 100 | 13.378 |
| 500 | 66.89 |
| 1000 | 133.78 |
Frequently asked questions
How many hectares is 1 bigha (assam)?
How do I convert bighas to hectares?
How do I convert hectares back to bighas?
How many hectares is 100 bighas?
Popular area unit conversions
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Metric / SI (5 units)
Imperial / US Customary (3 units)
Indian Subcontinent (15 units)
Sources & references
Conversion factor (1 bigha = 0.13378 ha) verified against the following authoritative sources:
- BIPM — The International System of Units (SI Brochure 9th ed.)
Official BIPM publication defining the seven SI base units (including the meter) and the rules for their use. The global authority on units of measurement.
- NIST — Guide to the SI
US National Institute of Standards and Technology reference covering the SI base and derived units with definitions and usage rules for US technical practice.
- NIST Special Publication 811 — Guide for the Use of the International System of Units
Detailed NIST guide covering exact conversion factors between SI and US customary units along with formatting and rounding conventions.
- NIST — Refinement of values for the yard and pound (Federal Register 1959)
The treaty (signed by US
- International Hydrographic Organization — Resolution on the Nautical Mile
International authority that standardised the nautical mile at exactly 1852 m in 1929 — the value adopted worldwide for sea and air navigation.