Convert hectares to square kilometers
Converting hectares to square kilometers is a common area task, whether you are checking a recipe, a spec sheet, a travel distance or a homework problem. Since 1 ha equals 0.01 km², the math is a single multiplication — and this page does it for you instantly, with the formula, a table of common values and answers to the questions people ask most.
Exact factor
How to convert hectares to square kilometers
To convert hectares to square kilometers, multiply the number of hectares by 0.01. For example, 10 ha × 0.01 = 0.1 km².
km² = ha × 0.01
- Write down the value in hectares you want to convert.
- Multiply it by 0.01 (the exact ha→km² factor).
- The result is your value in square kilometers. Check it below with the converter or the table.
Conversion table
Common values of hectares and their equivalents in square kilometers:
| ha | km² |
|---|---|
| 1 | 0.01 |
| 2 | 0.02 |
| 3 | 0.03 |
| 4 | 0.04 |
| 5 | 0.05 |
| 10 | 0.1 |
| 20 | 0.2 |
| 25 | 0.25 |
| 50 | 0.5 |
| 100 | 1 |
| 250 | 2.5 |
| 500 | 5 |
About these units
Hectare (ha). A hectare equals 10,000 square meters, or 100 m × 100 m. It is the standard land unit for farms, forests and parks in metric countries.
Square Kilometer (km²). A square kilometer equals one million square meters, or 100 hectares. Cities, lakes and countries are measured in square kilometers.
Frequently asked questions
How do I convert hectares to square kilometers?
To convert hectares to square kilometers, multiply the number of hectares by 0.01. For example, 10 ha × 0.01 = 0.1 km². Or skip the math: type the value into the converter at the top of this page and the result updates instantly.
How many square kilometers are in 1 hectare?
1 ha = 0.01 km². That is the fixed relationship used by this converter and by international standards.
How many hectares are in 1 square kilometer?
1 km² = 100 ha. If you are converting in the opposite direction, use our Square Kilometer to Hectare converter for the dedicated table and FAQ.
Is the hectares to square kilometers conversion exact?
Yes. Both units are defined by international agreement, so the factor of 0.01 is exact. Displayed results are rounded to 6 significant digits only for readability.
What is hectare used for?
A hectare equals 10,000 square meters, or 100 m × 100 m. It is the standard land unit for farms, forests and parks in metric countries.