How to Convert Square Miles to Square Kilometers
To convert from Square Miles (mi²) to Square Kilometers (km²), apply the following formula:
km² = mi² × 2.58999
Example: 5 mi² = 12.95 km²
Quick Reference Table
Common square miles to square kilometers conversions:
| Square Miles (mi²) | Square Kilometers (km²) |
|---|---|
| 1 mi² | 12.95 km² |
| 2 mi² | 25.9 km² |
| 5 mi² | 64.75 km² |
| 10 mi² | 129.5 km² |
| 25 mi² | 323.75 km² |
| 50 mi² | 647.5 km² |
| 100 mi² | 1295 km² |
| 250 mi² | 3237.5 km² |
| 500 mi² | 6475 km² |
| 1000 mi² | 12950 km² |
Use our converter above for precise values at any input.
About Square Miles and Square Kilometers
Square Miles (mi²) and Square Kilometers (km²) are both area units used in different measurement systems around the world. Our free converter lets you convert any value between them instantly without needing to remember the conversion factor.