Square Kilometers to Hectares
Convert square kilometers to hectares instantly. 1 km² = 100 ha. Includes the exact factor, a conversion table of common values and the definition of both units.
How to convert square kilometers to hectares
To convert square kilometers to hectares, multiply by 100. The relationship is fixed, so the same factor works for any quantity — there is nothing to look up and nothing that changes with temperature, location or context.
ha = km² × 100
Square Kilometers to Hectares conversion table
The values people look up most often, rounded for reading. Use the calculator above for anything in between.
| Square Kilometers | Hectares |
|---|---|
| 1 km² | 100 ha |
| 2 km² | 200 ha |
| 3 km² | 300 ha |
| 5 km² | 500 ha |
| 10 km² | 1,000 ha |
| 20 km² | 2,000 ha |
| 25 km² | 2,500 ha |
| 50 km² | 5,000 ha |
| 100 km² | 10,000 ha |
| 500 km² | 50,000 ha |
| 1,000 km² | 100,000 ha |
What is a square kilometer?
One million square metres. Used for city, park and lake areas.
What is a hectare?
10,000 square metres, or about 2.471 acres. The global standard for farmland.
The formula
ha = km² × 100
Every result on this page comes from this formula. Nothing is rounded until the final display, so figures match a spreadsheet to the cent.
How to use the Square Kilometers to Hectares
- Type the number of square kilometers you want to convert.
- Read the result in hectares straight away — there is no button to press.
- Check the table below for the values that come up most often, or reverse the conversion with the linked hectares to square kilometers page.
Square Kilometers to Hectares — frequently asked questions
How many hectares are in a square kilometer?
One square kilometer equals 100 ha. ha = km² × 100
What is the formula to convert square kilometers to hectares?
The formula is ha = km² × 100. It is an exact definition rather than an approximation, so the conversion never drifts no matter how large the number.
How do I convert hectares back to square kilometers?
Divide instead of multiplying: one hectare is 0.01 km². The reverse converter is linked in the related tools list.
Is this conversion exact?
Yes. Both units are defined against the same base unit by international agreement, so the factor is exact — any rounding you see is only in the display, which you can widen by entering more decimal places.
Is this square kilometers to hectares free to use?
Yes. Every calculator on the site is free, needs no sign-up, and runs entirely in your browser, so your figures never leave your device.
What people search for
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About this calculator
Written and reviewed by The Samsung Calculator editorial team. Every calculator is written against a published formula, reviewed against at least one independent reference implementation, and dated when it changes.
Last reviewed August 15, 2026 · Calculation runs client-side · No data collected · Report an error