Square Miles to Square Kilometers Converter
Enter a value in square miles (mi²) to convert it to square kilometers (km²). You can also switch either unit to any other area unit.
⇄ Convert square kilometers to square miles
How to convert square miles to square kilometers
One square mile is equal to 2.58998811 square kilometers. To convert square miles to square kilometers, multiply the square mile value by 2.58998811.
km² = mi² × 2.58998811
Example
Convert 5 square miles to square kilometers:
km² = 5 × 2.58998811 = 12.94994055 km²
Square Miles to Square Kilometers conversion table
| Square Miles (mi²) | Square Kilometers (km²) |
|---|---|
| 0.01 mi² | 0.0259 km² |
| 0.1 mi² | 0.258999 km² |
| 0.25 mi² | 0.647497 km² |
| 0.5 mi² | 1.294994 km² |
| 1 mi² | 2.589988 km² |
| 2 mi² | 5.179976 km² |
| 3 mi² | 7.769964 km² |
| 4 mi² | 10.359952 km² |
| 5 mi² | 12.949941 km² |
| 6 mi² | 15.539929 km² |
| 7 mi² | 18.129917 km² |
| 8 mi² | 20.719905 km² |
| 9 mi² | 23.309893 km² |
| 10 mi² | 25.899881 km² |
| 12 mi² | 31.079857 km² |
| 15 mi² | 38.849822 km² |
| 20 mi² | 51.799762 km² |
| 25 mi² | 64.749703 km² |
| 30 mi² | 77.699643 km² |
| 40 mi² | 103.599524 km² |
| 50 mi² | 129.499406 km² |
| 75 mi² | 194.249108 km² |
| 100 mi² | 258.998811 km² |
| 250 mi² | 647.497028 km² |
| 500 mi² | 1,294.994055 km² |
| 1,000 mi² | 2,589.98811 km² |
About the units
The square mile (symbol mi²) is a unit of area equal to 2,589,988.110336 square meters.
The square kilometer (symbol km²) is a unit of area equal to 1,000,000 square meters.