Square miles to square kilometres
1 mi² = 2.5899881 km²
All units in this category
- 2,589,988,100,000mm²
- 25,899,881,000cm²
- 2,589,988.1m²
- 258.99881ha
- 2.5899881km²
- 27,878,400ft²
- 640ac
- 1mi²
Formula
Multiply the value in square miles by 2.5899881 to get square kilometres.
km² = mi² × 2.5899881
How to convert square miles to square kilometres
Type a value in the field above and the result is calculated instantly. Use the arrow button to swap direction, or pick other units from the lists.
Square miles to square kilometres – common values
| Square miles (mi²) | Square kilometres (km²) |
|---|---|
| 1 | 2.58999 |
| 2 | 5.17998 |
| 5 | 12.9499 |
| 10 | 25.8999 |
| 20 | 51.7998 |
| 50 | 129.499 |
| 100 | 258.999 |
| 500 | 1,294.99 |
| 1,000 | 2,589.99 |
| 10,000 | 25,899.9 |