Square KM to Square Miles
1 Square kilometers = 0.3861021585 Square miles
| Square centimeters | 10,000,000,000 |
| Square meters | 1,000,000 |
| Hectares | 100 |
| Square inches | 1,550,003,100.01 |
| Square feet | 10,763,910.4167 |
| Square yards | 1,195,990.0463 |
| Acres | 247.105381467 |
| Square miles | 0.3861021585 |
Square Kilometers to square miles table
| Square kilometers (km²) | Square miles (mi²) |
| 0.1 km² | 0.03861022 mi² |
| 0.25 km² | 0.09652554 mi² |
| 0.5 km² | 0.19305108 mi² |
| 1 km² | 0.38610216 mi² |
| 2 km² | 0.77220432 mi² |
| 3 km² | 1.15830648 mi² |
| 4 km² | 1.54440863 mi² |
| 5 km² | 1.93051079 mi² |
| 6 km² | 2.31661295 mi² |
| 7 km² | 2.70271511 mi² |
| 8 km² | 3.08881727 mi² |
| 9 km² | 3.47491943 mi² |
| 10 km² | 3.86102159 mi² |
| 12 km² | 4.6332259 mi² |
| 15 km² | 5.79153238 mi² |
| 20 km² | 7.72204317 mi² |
| 25 km² | 9.65255396 mi² |
| 30 km² | 11.58306476 mi² |
| 40 km² | 15.44408634 mi² |
| 50 km² | 19.30510793 mi² |
| 75 km² | 28.95766189 mi² |
| 100 km² | 38.61021585 mi² |
| 250 km² | 96.52553964 mi² |
| 500 km² | 193.0510793 mi² |
| 1,000 km² | 386.1021585 mi² |
How to convert square kilometers to square miles
- Enter the amount in square kilometers above; the result in square miles updates as you type.
- To do it by hand, multiply by 0.38610216. One square kilometer is 0.38610216 square miles.
- Example: 10 km² × 0.38610216 = 3.86102159 mi².
Frequently asked questions
How many square miles are in one square kilometer?
One square kilometer is 0.38610216 square miles.
How do I convert square miles back to square kilometers?
Divide by 0.38610216, or multiply by 2.58998811. Use the swap button above to flip the conversion.
More conversions
Area ConverterSquare meters to Square feetSquare feet to Square metersAcres to HectaresHectares to AcresAcres to Square feet