Square Miles to Square Kilometers
1 mi² = 2.58999 km²
How to convert square miles to square kilometers
One square mile equals 2.58999 square kilometers. To convert square miles to square kilometers, multiply by 2.58998811.
km² = mi² × 2.58998811
Or divide by 0.3861021585. Example: 5 mi² × 2.58998811 = 12.9499 km².
Related conversions
Square Miles to square kilometers chart
| Square Miles | Square Kilometers |
|---|---|
| 1 mi² | 2.59 km² |
| 2 mi² | 5.18 km² |
| 3 mi² | 7.77 km² |
| 4 mi² | 10.36 km² |
| 5 mi² | 12.95 km² |
| 6 mi² | 15.54 km² |
| 7 mi² | 18.13 km² |
| 8 mi² | 20.72 km² |
| 9 mi² | 23.31 km² |
| 10 mi² | 25.9 km² |
| 12 mi² | 31.08 km² |
| 15 mi² | 38.85 km² |
| 20 mi² | 51.8 km² |
| 25 mi² | 64.75 km² |
| 30 mi² | 77.7 km² |
| 40 mi² | 103.6 km² |
| 50 mi² | 129.5 km² |
| 75 mi² | 194.25 km² |
| 100 mi² | 259 km² |
| 250 mi² | 647.5 km² |
| 500 mi² | 1,295 km² |
| 1,000 mi² | 2,590 km² |