mi² to km²
39 unitsResult2.589988e+0
2.58998811km²
1 mi² × 2.58998811 = 2.58998811 km²
Convert Square mile to Square kilometer (mi² to km²)
1 square mile = 2.58998811 square kilometers. Convert square miles to square kilometers instantly, with the exact factor, the formula and a reference table of common values.
Formula
square kilometers = square miles × 2.58998811
mi² to km² conversion table
| mi² | km² |
|---|---|
| 1 mi² | 2.58998811 km² |
| 2 mi² | 5.179976221 km² |
| 3 mi² | 7.769964331 km² |
| 5 mi² | 12.94994055 km² |
| 10 mi² | 25.8998811 km² |
| 20 mi² | 51.79976221 km² |
| 50 mi² | 129.4994055 km² |
| 100 mi² | 258.998811 km² |
| 250 mi² | 647.4970276 km² |
| 500 mi² | 1294.994055 km² |
| 1000 mi² | 2589.98811 km² |
What is a square mile?
A square mile is a square one mile on each side, about 2.59 square kilometers. It is the everyday unit for city and county areas in the United States and UK.
Manhattan covers roughly 59 square kilometers, or about 23 square miles. In American surveying, a square mile of land is called a section.
In writing, the square mile is usually shortened to "mi²". One square mile is 2589988.11 square meters, and that ratio is what every number on this page is built from.