Convert Square Mile (mi²) to Square Kilometer (km²) instantly. Enter any value and get the result immediately.
mi² → km² Converter
| Square Mile (mi²) | Square Kilometer (km²) |
|---|---|
| 0.1 mi² | 0.25899881 km² |
| 0.5 mi² | 1.29499405 km² |
| 1 mi² | 2.58998811 km² |
| 2 mi² | 5.17997622 km² |
| 5 mi² | 12.94994055 km² |
| 10 mi² | 25.8998811 km² |
| 20 mi² | 51.7997622 km² |
| 50 mi² | 129.4994055 km² |
| 100 mi² | 258.998811 km² |
| 200 mi² | 517.997622 km² |
| 500 mi² | 1294.994055 km² |
| 1000 mi² | 2589.98811 km² |
| 5000 mi² | 12,949.9405 km² |
| 10000 mi² | 25,899.8811 km² |
Formula: Square Kilometer = Square Mile × 2.58998811
Example: 1 mi² = 2.58998811 km²
You can also use the interactive converter above. Simply enter any Square Mile value and the equivalent Square Kilometer value will appear instantly. Click the ⇄ button to reverse the conversion.
Here is a closer look at what Square Mile and Square Kilometer are used for, plus answers to the questions people ask most about this conversion.
A Square Mile (sq mi) is a large imperial area unit equal to a 1 mi by 1 mi square, used for measuring big regions in the US and UK.
A Square Kilometer (km2) is a large metric area unit equal to a 1 km by 1 km square, used for measuring big regions.
The formula is: Square Kilometer = Square Mile x 2.58998811. Multiply any Square Mile value by 2.58998811 to get the equivalent in Square Kilometer.
1 sq mi = 2.58998811 km2.
1 km2 = 0.386102158592535 sq mi.
Square Mile is bigger than Square Kilometer. 1 Square Mile = 2.58998811 km2.