Square Miles to Square Kilometers (mi² to km²)
To convert square miles to square kilometers, multiply by 2.58999. 1 mi² = 2.59 km².
Formula
km² = mi² × 2.58999
Example: Convert 10 mi²: 10 × 2.58999 = 25.8999 km².
Square Miles to Square Kilometers chart
| Square Miles (mi²) | Square Kilometers (km²) |
|---|---|
| 1 mi² | 2.59 km² |
| 2 mi² | 5.18 km² |
| 3 mi² | 7.77 km² |
| 4 mi² | 10.36 km² |
| 5 mi² | 12.9499 km² |
| 6 mi² | 15.5399 km² |
| 7 mi² | 18.1299 km² |
| 8 mi² | 20.7199 km² |
| 9 mi² | 23.3099 km² |
| 10 mi² | 25.8999 km² |
| 12 mi² | 31.0799 km² |
| 15 mi² | 38.8498 km² |
| 20 mi² | 51.7998 km² |
| 25 mi² | 64.7497 km² |
| 30 mi² | 77.6996 km² |
| 40 mi² | 103.6 km² |
| 50 mi² | 129.499 km² |
| 75 mi² | 194.249 km² |
| 100 mi² | 258.999 km² |
Frequently asked questions
How many square kilometers is 1 square mile?
1 square mile (mi²) equals 2.59 square kilometers (km²).
What is the formula to convert mi² to km²?
Multiply the value in square miles by 2.58999: km² = mi² × 2.58999.
What is 10 mi² in square kilometers?
10 square miles equals 25.8999 square kilometers (10 mi² = 25.8999 km²).
Related conversions
- Sq KM to Sq Miles
- Sq Ft to Sq M
- Sq M to Sq Ft
- Acres to Hectares
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- Acres to Sq Ft
- Sq Ft to Acres
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