Hectares to Square Kilometers Converter
Unit ConversionConvert hectares to square kilometers. 1 hectare equals exactly 0.01 square kilometers, with a conversion table, worked examples and the reverse conversion.
Square Kilometers
Equivalent area in square kilometers
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SponsoredThis converter turns hectares into square kilometers (ha to km2). Enter a value and the result updates as you type. 1 hectare equals exactly 0.01 square kilometers.
There are 100 hectares in a square kilometer, so hectares divide by 100. A hectare is a square 100 meters on each side and a square kilometer is a square 1,000 meters on each side, ten times longer and a hundred times the area. Farmland is counted in hectares, while regions and parks are often given in square kilometers.
The result is rounded to 4 decimal places, but the factor behind it never is, so long chains of conversions stay accurate. You can type decimals, thousands separators or fractions such as 2 1/2, and the conversion table below lists common values.
How to Convert Hectares to Square Kilometers
To convert hectares to square kilometers, divide by 100. For example, 250 hectares equals exactly 2.5 square kilometers.
To go from square kilometers back to hectares, multiply by 100. For example, 3 square kilometers equals exactly 300 hectares.
Hectares to Square Kilometers Conversion Table
Common values in hectares converted to square kilometers, rounded to 4 decimal places.
| Hectares | Square Kilometers |
|---|---|
| 1 ha | 0.01 km² |
| 10 ha | 0.1 km² |
| 25 ha | 0.25 km² |
| 50 ha | 0.5 km² |
| 100 ha | 1 km² |
| 250 ha | 2.5 km² |
| 500 ha | 5 km² |
| 1,000 ha | 10 km² |
| 3,000 ha | 30 km² |
| 10,000 ha | 100 km² |
The Metric Area Ladder
NIST SP 811 defines the hectare as one square hectometer, a square 100 meters on a side. Each step up the metric area ladder is a factor of 100, because each length step is a factor of 10:
| Unit | Square of | Square Meters |
|---|---|---|
| Square meter (m²) | 1 m | 1 |
| Are (a) | 10 m | 100 |
| Hectare (ha) | 100 m | 10,000 |
| Square kilometer (km²) | 1,000 m | 1,000,000 |
The length side of the ladder is in the Meter Converter and the Kilometers to Meters Converter.
Frequently Asked Questions
How many square kilometers is 750 hectares?
750 hectares equals exactly 7.5 square kilometers.
How many square kilometers is 40,000 hectares?
40,000 hectares equals exactly 400 square kilometers.
How many square kilometers is 5 hectares?
5 hectares equals exactly 0.05 square kilometers.
How many square kilometers is 125 hectares?
125 hectares equals exactly 1.25 square kilometers.
What happens if I enter a negative number?
The result shows a dash. An area is a size, so it is never below zero; a negative value usually means a typing mistake, such as a stray minus sign.
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