Square Kilometers to Square Miles
Convert square kilometers (km²) to square miles (mi²). Type in either box; the other updates as you go.
How to convert square kilometers to square miles
To convert square kilometers to square miles, multiply the number of square kilometers by 0.3861021585.
Example
Convert 5 square kilometers to square miles:
Square Kilometer to square mile conversion chart
| Square Kilometers (km²) | Square Miles (mi²) |
|---|---|
| 1 km² | 0.3861022 mi² |
| 2 km² | 0.7722043 mi² |
| 3 km² | 1.158306 mi² |
| 4 km² | 1.544409 mi² |
| 5 km² | 1.930511 mi² |
| 6 km² | 2.316613 mi² |
| 7 km² | 2.702715 mi² |
| 8 km² | 3.088817 mi² |
| 9 km² | 3.474919 mi² |
| 10 km² | 3.861022 mi² |
| 12 km² | 4.633226 mi² |
| 15 km² | 5.791532 mi² |
| 20 km² | 7.722043 mi² |
| 25 km² | 9.652554 mi² |
| 30 km² | 11.58306 mi² |
| 40 km² | 15.44409 mi² |
| 50 km² | 19.30511 mi² |
| 60 km² | 23.16613 mi² |
| 70 km² | 27.02715 mi² |
| 75 km² | 28.95766 mi² |
| 80 km² | 30.88817 mi² |
| 90 km² | 34.74919 mi² |
| 100 km² | 38.61022 mi² |
| 150 km² | 57.91532 mi² |
| 200 km² | 77.22043 mi² |
| 250 km² | 96.52554 mi² |
| 500 km² | 193.0511 mi² |
| 1,000 km² | 386.1022 mi² |
Going the other way? See the square miles to square kilometers chart.
About the units
Square Kilometer (km²)
A square kilometer is 1,000,000 square meters, or 100 hectares. The size of cities and countries is given in square kilometers.
Square Mile (mi²)
A square mile is 640 acres, about 2.59 square kilometers.
Frequently asked questions
How many square miles are in a square kilometer?
There are 0.3861021585 square miles in a square kilometer.
How many square kilometers are in a square mile?
There are 2.58998811 square kilometers in a square mile.
How do you convert square kilometers to square miles?
To convert square kilometers to square miles, multiply the number of square kilometers by 0.3861021585.
What is 5 square kilometers in square miles?
5 square kilometers equals 1.93051 square miles.
Convert between square feet, square meters, acres, hectares and other units of area. Open the area converter to see a value in every unit at once.