Square miles to Square kilometers Converter
Convert square miles (mi²) to square kilometers (km²) instantly. Type a value below; the result updates as you type. 1 mi² = 2.58999 km².
How to convert square miles to square kilometers
1 mi² = 2.5899881 km². To convert square miles to square kilometers, multiply the value by 2.5899881.
square kilometers = square miles × 2.5899881
Worked examples
- 5 mi² = 12.9499 km²
- 12 mi² = 31.0799 km²
- 100 mi² = 258.999 km²
Common square miles to square kilometers conversions
How many square kilometers is 2 mi²?
2 mi² is equal to 5.17998 km².
How many square kilometers is 10 mi²?
10 mi² is equal to 25.8999 km².
How many square kilometers is 20 mi²?
20 mi² is equal to 51.7998 km².
How many square kilometers is 50 mi²?
50 mi² is equal to 129.499 km².
How many square kilometers is 100 mi²?
100 mi² is equal to 258.999 km².
How many square kilometers is 500 mi²?
500 mi² is equal to 1,294.99 km².
Square miles to square kilometers conversion table
| Square miles (mi²) | Square kilometers (km²) |
|---|---|
| 1 mi² | 2.58999 km² |
| 2 mi² | 5.17998 km² |
| 3 mi² | 7.76996 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 |
| 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 |
| 250 mi² | 647.497 km² |
| 500 mi² | 1,294.99 km² |
| 1,000 mi² | 2,589.99 km² |
Related conversions
Frequently asked questions
How many square kilometers are in 1 square mile?
1 square mile (mi²) equals 2.58999 square kilometers (km²).
How do I convert square miles to square kilometers?
To convert square miles to square kilometers, multiply the value by 2.5899881. For example, 5 mi² = 12.9499 km².
How many square miles are in 1 square kilometer?
1 square kilometer (km²) equals 0.386102 square miles (mi²).