Convert Square Mile to Square Kilometre
Instant area conversion, with the formula and a full reference table.
1 mi²
2.59 km²
1 km² = 0.38610216 mi²
How to convert Square Mile to Square Kilometre
Multiply the number of square mile by 2.59.
km² = mi² × 2.59
To go the other way, divide instead — or multiply by 0.38610216.
Worked example
To convert 25 mi²: 25 × 2.59 = 64.7497 km².
Square Mile to Square Kilometre conversion table
| Square Mile (mi²) | Square Kilometre (km²) |
|---|---|
| 1 | 2.59 |
| 2 | 5.18 |
| 3 | 7.77 |
| 5 | 12.9499 |
| 10 | 25.8999 |
| 20 | 51.7998 |
| 25 | 64.7497 |
| 50 | 129.5 |
| 100 | 259 |
| 250 | 647.5 |
| 500 | 1,294.99 |
| 1,000 | 2,589.99 |