Hectare to Square Kilometer (ha to km²) Converter
1 hectare equals 0.01 square kilometers (km²) — multiply the number of hectares by 0.01, or divide by 100, to convert. A square kilometer is 1,000,000 square meters and a hectare is 10,000, so there are exactly 100 hectares in a km².
The formula
To convert hectares to square kilometers, multiply by 0.01:
km² = hectares × 0.01
For example, 250 ha × 0.01 = 2.5 km². To reverse it, multiply square kilometers by 100.
Conversion table
| Hectares (ha) | Square Kilometers (km²) |
|---|---|
| 1 | 0.01 |
| 2 | 0.02 |
| 5 | 0.05 |
| 10 | 0.1 |
| 25 | 0.25 |
| 50 | 0.5 |
| 100 | 1 |
| 500 | 5 |
| 1,000 | 10 |
How to convert online
Let the tool shift the decimal for you:
- Enter your hectare value in the first box.
- Read the square-kilometer result instantly in the second box.
- Or type a square-kilometer value to convert back to hectares — it works both ways.
Use the Hectare to Square Kilometer Converter — free and instant in your browser.
Where this conversion is used
Land parcels and farms are measured in hectares, but regional maps, nature reserves and city districts are described in square kilometers. Converting ha to km² rolls many individual plots into a single large-area figure for planning, GIS and reporting.
FAQ
How many square kilometers are in a hectare?
One hectare equals 0.01 square kilometers. It takes 100 hectares to make one km².
What is the formula to convert hectares to square kilometers?
Multiply hectares by 0.01: km² = ha × 0.01.
How do I convert square kilometers back to hectares?
Multiply square kilometers by 100. So 5 km² = 500 hectares.
Is the conversion exact?
Yes. A square kilometer is exactly 100 hectares, so the 0.01 factor is exact.
Related converters
- Square Kilometer to Hectare Converter
- Hectare to Square Meter Converter
- Hectare to Acre Converter
- Hectare to Square Mile Converter
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