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hectare (ha) → square kilometer (km2)

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Use our free online converter to convert between units instantly. Enter any value in the field above to get accurate results. No signup or download required—all conversions run in your browser. Our calculator uses standard conversion factors for reliability.

0
ha=km2
0.01=0.0001
0.1=0.001
1=0.01
2=0.02
3=0.03
5=0.05
10=0.1
20=0.2
50=0.5
100=1
1000=10

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Brief explanation: hectare to square kilometer

Square meter is the base unit for area. Hectare = 10,000 m². Acre ≈ 4047 m². Square foot = 0.093 m². Square km = 1 million m². Area measures two-dimensional space. Hectares are used for land (farms, parks). Acres are common in the US and UK for real estate. Square feet are standard for room sizes. When converting, remember area uses squared units—so 1 m² = 10.76 ft².

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Common conversion examples: hectare to square kilometer

Reference values for quick comparison. Use the converter above for any amount.

  • 1 hectare=0.01 square kilometer
  • 10 hectare=0.10 square kilometer
  • 100 hectare=1 square kilometer

About the Units

hectare (ha)

Definition: A hectare (ha) is a unit of area equal to 10,000 square meters or 0.01 square kilometers. It is commonly used for agricultural land and forestry.
History: The hectare was adopted in 1795 as part of the metric system. The name combines the Greek hecto- (hundred) with are (100 m²). It became the standard for agricultural land in metric countries.
Current use: Hectares are used for farmland, vineyards, and forest area. Real estate for agricultural land uses hectares. One hectare is approximately 2.47 acres.

square kilometer (km2)

Definition: A square kilometer (km²) is a unit of area equal to 1,000,000 square meters. It is used for large areas such as cities, countries, and lakes.
History: The square kilometer emerged for geographical and administrative areas. It simplified expression of large land areas without excessive zeros.
Current use: Square kilometers are used for country size, city area, and park size. Geographical and demographic data use km². One km² is about 0.386 square miles.

Sources

Conversion factors and unit definitions follow international standards. For authoritative references, see: