Convert Square Kilometers to Square Miles
1 square kilometer = 0.3861022 square miles. Type any value below to convert in either direction — the calculation happens in your browser.
Square Kilometers to Square Miles formula
Multiply the number of square kilometers by 0.3861022 to get square miles.
square miles = square kilometers × 0.3861022To go the other way: divide the number of square miles by 0.3861022, or multiply by 2.589988.
square kilometers = square miles ÷ 0.3861022Square Kilometers to Square Miles conversion table
| Square Kilometers | Square Miles |
|---|---|
| 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 |
| 15 km² | 5.791532 mi² |
| 20 km² | 7.722043 mi² |
| 25 km² | 9.652554 mi² |
| 30 km² | 11.583065 mi² |
| 40 km² | 15.444086 mi² |
| 50 km² | 19.305108 mi² |
| 75 km² | 28.957662 mi² |
| 100 km² | 38.610216 mi² |
| 250 km² | 96.52554 mi² |
| 500 km² | 193.051079 mi² |
| 1,000 km² | 386.102159 mi² |
Square Miles to Square Kilometers conversion table
| Square Miles | Square Kilometers |
|---|---|
| 1 mi² | 2.589988 km² |
| 2 mi² | 5.179976 km² |
| 3 mi² | 7.769964 km² |
| 4 mi² | 10.359952 km² |
| 5 mi² | 12.949941 km² |
| 6 mi² | 15.539929 km² |
| 7 mi² | 18.129917 km² |
| 8 mi² | 20.719905 km² |
| 9 mi² | 23.309893 km² |
| 10 mi² | 25.899881 km² |
About the square kilometer
A square kilometre is one million square metres and is used for the area of cities and regions.
About the square mile
A square mile is about 2.59 square kilometres and is used for US counties, states and land surveys.
Frequently asked questions
How many square miles are in a square kilometer?
There are 0.3861022 square miles in one square kilometer.
How many square kilometers are in a square mile?
There are 2.589988 square kilometers in one square mile.
Is this conversion exact?
The ratio between the square kilometer and the square mile is fixed by definition, so the conversion is exact — the figures shown here are rounded for readability only.
What is 10 square kilometers in square miles?
10 square kilometers equals 3.861022 square miles.
Related area conversions
- Square Meters to Square Miles
- Square Kilometers to Square Meters
- Square Kilometers to Square Centimeters
- Square Kilometers to Square Yards
- Square Kilometers to Square Feet
- Square Kilometers to Square Inches
- Square Kilometers to Acres
- Square Kilometers to Hectares
- Square Centimeters to Square Miles
- Square Yards to Square Miles
- Square Feet to Square Miles
- Square Inches to Square Miles
- Acres to Square Miles
- Hectares to Square Miles