Convert Bigha (West Bengal) to Square Kilometer
Convert bighas to square kilometers instantly. 1 bigha (west bengal) = 0.0013378 square kilometer — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Square Kilometer to Bigha (West Bengal) converter for the reverse conversion.
Units explained
Bigha (West Bengal)
A Bengal bigha is a traditional unit of land area used in West Bengal and Bangladesh, equal to approximately 1337.8 m² (about 0.33 acre).
Originated in pre-colonial Bengal land measurement. The Bengal bigha became standardized under British administration as 14,400 square feet, which equals 1337.8 m².
Bengal bighas are the standard unit in rural property transactions in West Bengal, Tripura, and Bangladesh. Land records use bigha alongside katha (1/20 bigha) and chatak (1/16 katha).
Standardized in colonial Bengal; widely used in modern West Bengal and Bangladesh.
Square Kilometer
A square kilometer is a metric unit of area equal to 1,000,000 m² (one million square meters), or 100 hectares. It is used for measuring large land areas, regional geography, and country-scale statistics.
Derived by squaring the kilometer (1000 m). The kilo- prefix comes from the Greek 'chilioi' (thousand).
Square kilometers express the area of cities, districts, lakes, forests, and entire countries. India's total area is approximately 3,287,263 km². 1 km² equals 100 hectares or about 247.105 acres.
Kilometer has been part of the metric system since 1795.
Bigha (West Bengal) to Square Kilometer conversion formula
The relationship between bighas and square kilometers:
To convert bighas to square kilometers, multiply the value in bighas by 0.0013378. To reverse, multiply square kilometers by 747.4958887726.
How to use this converter
Type a value into the calculator. The result in square kilometers updates as you type. Tap a quick value, copy the result with one click, or use the swap arrow to jump straight to the Square Kilometer to Bigha (West Bengal) converter for the reverse direction.
Step-by-step: convert bighas to square kilometers
- Write down the value in bighas (bigha).
- Multiply that value by the factor 0.0013378.
- The product is the equivalent value in square kilometers (km²).
- To reverse, multiply the square kilometer value by 747.4958887726.
Worked examples
Example 1 — Convert 1 bigha to km²:
1 × 0.0013378 = 0.0013378 km²
Example 2 — Convert 100 bigha to km²:
100 × 0.0013378 = 0.13378 km²
Real-world example — Road-sign distances across systems
A 100-bigha (west bengal) road sign converts cleanly into square kilometers — exactly the conversion drivers planning trips abroad rely on when reading road signs in a different measurement system.
100 bigha × 0.0013378 = 0.13378 km²
Real-world example — Endurance race distances
A 50-bigha (west bengal) cycling or running race converts to a recognizable distance in square kilometers. Endurance athletes coming from a different measurement system use this conversion to compare training plans across regions.
50 bigha × 0.0013378 = 0.06689 km²
Real-world example — Maritime exclusion zone
A 200-bigha (west bengal) exclusion zone (a common maritime boundary) converts to a different value in square kilometers that's useful when describing the same zone in everyday land-distance units.
200 bigha × 0.0013378 = 0.26756 km²
Bigha (West Bengal) to Square Kilometer conversion table
Standard reference values for converting bighas to square kilometers:
| Bigha (West Bengal) [bigha] | Square Kilometer [km²] |
|---|---|
| 0.01 | 1.3378e-5 |
| 0.1 | 0.00013378 |
| 1 | 0.0013378 |
| 2 | 0.0026756 |
| 3 | 0.0040134 |
| 4 | 0.0053512 |
| 5 | 0.006689 |
| 10 | 0.013378 |
| 20 | 0.026756 |
| 30 | 0.040134 |
| 40 | 0.053512 |
| 50 | 0.06689 |
| 100 | 0.13378 |
| 500 | 0.6689 |
| 1000 | 1.3378 |
Frequently asked questions
How many square kilometers is 1 bigha (west bengal)?
How do I convert bighas to square kilometers?
How do I convert square kilometers back to bighas?
How many square kilometers is 100 bighas?
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Metric / SI (5 units)
Imperial / US Customary (3 units)
Indian Subcontinent (15 units)
Sources & references
Conversion factor (1 bigha = 0.0013378 km²) 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.