Square miles to Square kilometres Converter
Enter square miles to get square kilometres instantly. Works both ways.
1 square mile = 2.58999 square kilometres
How to convert square miles to square km
To convert square miles to square kilometres, multiply by 2.58999. For example, 5 square miles × 2.58999 = 12.9499 square km.
Need it the other way? Convert square kilometres to square miles.
Square miles to square km chart
| Square miles | Square kilometres |
|---|---|
| 0.1 square miles | 0.258999 square km |
| 0.25 square miles | 0.647497 square km |
| 0.5 square miles | 1.29499 square km |
| 1 square miles | 2.58999 square km |
| 2 square miles | 5.17998 square km |
| 3 square miles | 7.76996 square km |
| 4 square miles | 10.36 square km |
| 5 square miles | 12.9499 square km |
| 6 square miles | 15.5399 square km |
| 7 square miles | 18.1299 square km |
| 8 square miles | 20.7199 square km |
| 9 square miles | 23.3099 square km |
| 10 square miles | 25.8999 square km |
| 15 square miles | 38.8498 square km |
| 20 square miles | 51.7998 square km |
| 25 square miles | 64.7497 square km |
| 30 square miles | 77.6996 square km |
| 40 square miles | 103.6 square km |
| 50 square miles | 129.499 square km |
| 75 square miles | 194.249 square km |
| 100 square miles | 258.999 square km |
| 250 square miles | 647.497 square km |
| 500 square miles | 1,294.99 square km |
| 1,000 square miles | 2,589.99 square km |
More area & land conversions
Frequently asked questions
How many square kilometres are in one square mile?
There are 2.58999 square kilometres in one square mile.
How do I convert square miles to square km?
Multiply the value in square miles by 2.58999.