Hectares to square kilometers
1 hectare = 0.01 square kilometers
Type a value in hectares (ha) to get square kilometers (km²) straight away. A hectare is smaller than a square kilometer, so the number goes down. Both units belong to area, measured here against the square meter.
1 ha = 0.01 km²
Formula
km² = ha × 0.01
One hectare is 0.01 square kilometers, so multiply by that factor. You can also divide by 100, the number of hectares in one square kilometer. Here ha is the value in hectares and km² is the result in square kilometers.
Worked example: 3 hectares × 0.01 = 0.03 square kilometers.
Hectares to square kilometers table
| hectares (ha) | square kilometers (km²) |
|---|---|
| 1 ha | 0.01 km² |
| 2 ha | 0.02 km² |
| 3 ha | 0.03 km² |
| 4 ha | 0.04 km² |
| 5 ha | 0.05 km² |
| 6 ha | 0.06 km² |
| 7 ha | 0.07 km² |
| 8 ha | 0.08 km² |
| 9 ha | 0.09 km² |
| 10 ha | 0.1 km² |
| 15 ha | 0.15 km² |
| 20 ha | 0.2 km² |
| 25 ha | 0.25 km² |
| 30 ha | 0.3 km² |
| 40 ha | 0.4 km² |
| 50 ha | 0.5 km² |
| 60 ha | 0.6 km² |
| 75 ha | 0.75 km² |
| 100 ha | 1 km² |
Everyday hectares in square kilometers
| What it is | ha | km² |
|---|---|---|
| a large garden | 0.5 ha | 0.005 km² |
| a football pitch (about) | 0.714 ha | 0.00714 km² |
| a 100 × 100 m square | 1 ha | 0.01 km² |
| a small farm | 2 ha | 0.02 km² |
| one square kilometer | 100 ha | 1 km² |
Quick estimate in your head
Divide by 10^2: move the decimal point 2 places left.
About the units
Hectare (ha). 10,000 m², a square 100 m on each side. The metric unit for farmland and forests.
Square kilometer (km²). 1,000,000 m² or 100 hectares. Used for city and country areas.
Going the other way, 1 square kilometer is 100 hectares.
Questions
How many square kilometers are in 1 hectare?
1 hectare is 0.01 square kilometers, and 1 square kilometer is 100 hectares.
How do I convert hectares to square kilometers?
Use km² = ha × 0.01. For example, 3 hectares × 0.01 = 0.03 square kilometers.
Is the hectare to square kilometer factor exact?
The factor comes from the unit definitions. Results here are rounded to 6 significant digits for display.
How much is one square kilometer in square kilometers?
100 ha is 1 km².
Source for the conversion factor: NIST Handbook 44, Appendix C (units of area).
Related conversions
- square kilometers to hectares
- hectares to acres
- hectares to square meters
- square kilometers to square miles
- square miles to square kilometers
- hectares to bigha