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Square kilometers to Square miles
Type a value in either box. 1 km² = 0.386102 mi².
How to convert square kilometers to square miles
1 km² = 0.3861021585 mi², and 1 mi² = 2.58998811 km². To convert square kilometers to square miles, use:
mi² = km² × 0.3861021585
Example: convert 10 km² to square miles: 10 × 0.3861021585 = 3.8610216, so 10 km² = 3.86102 mi².
Good to know
1 km² = 0.386 mi². A square 10 km on each side (100 km²) is about 38.6 mi².
Square kilometers to Square miles chart
| Square kilometers (km²) | Square miles (mi²) |
|---|---|
| 0.1 km² | 0.0386102 mi² |
| 0.25 km² | 0.0965255 mi² |
| 0.5 km² | 0.193051 mi² |
| 1 km² | 0.386102 mi² |
| 2 km² | 0.772204 mi² |
| 3 km² | 1.15831 mi² |
| 4 km² | 1.54441 mi² |
| 5 km² | 1.93051 mi² |
| 6 km² | 2.31661 mi² |
| 7 km² | 2.70272 mi² |
| 8 km² | 3.08882 mi² |
| 9 km² | 3.47492 mi² |
| 10 km² | 3.86102 mi² |
| 12 km² | 4.63323 mi² |
| 15 km² | 5.79153 mi² |
| 20 km² | 7.72204 mi² |
| 25 km² | 9.65255 mi² |
| 30 km² | 11.5831 mi² |
| 40 km² | 15.4441 mi² |
| 50 km² | 19.3051 mi² |
| 75 km² | 28.9577 mi² |
| 100 km² | 38.6102 mi² |
| 250 km² | 96.5255 mi² |
| 500 km² | 193.051 mi² |
| 1,000 km² | 386.102 mi² |
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