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Area
Hectares to Square kilometers
Convert hectares (ha) to square kilometers (km²). Type a value below to see the result update instantly. Reference table and formula included.
Calculator
1 ha = 0.01 km²
Hectares to Square kilometers Conversion Table
Common values, ready to copy:
| hectares | square kilometers |
|---|---|
| 1 ha | 0.01 km² |
| 2 ha | 0.02 km² |
| 5 ha | 0.05 km² |
| 10 ha | 0.1 km² |
| 25 ha | 0.25 km² |
| 50 ha | 0.5 km² |
| 100 ha | 1 km² |
| 1,000 ha | 10 km² |
Formula
square kilometers = hectares × 0.01
Area conversions are derived from length: 1 ft² = (0.3048 m)² = 0.092903 m². 1 acre = 4,046.86 m². 1 hectare = 10,000 m² exactly.
About Hectares and Square kilometers
Hectares (ha): Ten thousand square meters, or 100 m × 100 m; from the Greek hekaton meaning hundred (referring to the hundred-fold of an are, an obscure unit). Common uses: Land area in metric countries — agriculture, forestry, real estate (especially rural), and conservation.
Square kilometers (km²): One kilometer squared, or one million square meters. Common uses: City area, national park sizes, agricultural land, and geographic features at the regional scale.
How the conversion works
Area conversions are derived from length: 1 ft² = (0.3048 m)² = 0.092903 m². 1 acre = 4,046.86 m². 1 hectare = 10,000 m² exactly.
The exact relationship is square kilometers = hectares × 0.01, which the calculator at the top of this page applies in both directions. Type into either field and the other updates immediately.
When this conversion matters
Converting between hectares and square kilometers comes up wherever area measurements move between systems — from one country's conventions to another's, from a scientific reference to a practical specification, or from one industry's working unit to another's. The calculator and reference table above cover the everyday range; for unusual values you can type any number into either field.