Use the calculator above to convert Square Miles (mi²) to Square Kilometers (km²) instantly, or check the reference table and answers below. 1 Square Mile equals 2.589990 km².
To convert Square Miles to Square Kilometers, multiply the Square Miles value by 2.58999. To go the other way, divide by 2.58999 instead.
How many Square Kilometers are in 1 Square Mile?
1 Square Mile (mi²) equals 2.589990 km².
How many Square Kilometers are in 10 Square Miles?
10 Square Miles (mi²) equals 25.899900 km².
Symbol: mi²
A square mile (mi²) is an imperial unit of area, commonly used for large land areas like cities, counties, and countries in the US.
Symbol: km²
A square kilometer (km²) is a metric unit of area equal to one million square meters, used for large areas like cities and countries.
| Square Miles [mi²] | Square Kilometers [km²] |
|---|---|
| 0.01 mi² | 0.025900 km² |
| 0.1 mi² | 0.258999 km² |
| 1 mi² | 2.589990 km² |
| 2 mi² | 5.179980 km² |
| 3 mi² | 7.769970 km² |
| 5 mi² | 12.949950 km² |
| 10 mi² | 25.899900 km² |
| 20 mi² | 51.799800 km² |
| 50 mi² | 129.499500 km² |
| 100 mi² | 258.999000 km² |
| 1000 mi² | 2589.990000 km² |