Convert Square Miles to Square Kilometers
Instantly convert Square Miles (mi²) to Square Kilometers (km²) with our free online calculator.
Formula: mi² to km² — multiply by 2.58999
Reference Table
| Square Miles (mi²) | Square Kilometers (km²) |
|---|---|
| 1 | 2.58999 |
| 5 | 12.9499 |
| 10 | 25.8999 |
| 25 | 64.7497 |
| 50 | 129.499 |
| 100 | 258.999 |
How to Convert Square Miles to Square Kilometers
Formula
To convert Square Miles (mi²) to Square Kilometers (km²): multiply by 2.58999
About Square Mile (mi²)
An imperial unit of area equal to a square with 1-mile sides
About Square Kilometer (km²)
A metric unit of area equal to one million square meters