Square miles to Square kilometers
Convert Square miles to Square kilometers with an exact factor. One square mile equals 2.58998811 Square kilometers.
Result2.58998811
How to convert Square miles to Square kilometers
The converter above changes Square miles into Square kilometers instantly. As a reference point, one square mile corresponds to 2.58998811 Square kilometers, and one square kilometer corresponds to 0.38610216 Square miles. Use the table below for common values.
Square miles Ć 2.58998811 = Square kilometers
For example, 5 Square miles = 12.94994055 Square kilometers.
About the units
- Square miles (miĀ²) ā A square one mile per side (2.59 kmĀ²).
- Square kilometers (kmĀ²) ā One million square metres, used for regions.
Square miles to Square kilometers conversion table
| Square miles | Square kilometers |
|---|---|
| 1 miĀ² | 2.58998811 kmĀ² |
| 2 miĀ² | 5.17997622 kmĀ² |
| 3 miĀ² | 7.76996433 kmĀ² |
| 5 miĀ² | 12.94994055 kmĀ² |
| 10 miĀ² | 25.8998811 kmĀ² |
| 20 miĀ² | 51.79976221 kmĀ² |
| 25 miĀ² | 64.74970276 kmĀ² |
| 50 miĀ² | 129.49940552 kmĀ² |
| 100 miĀ² | 258.99881103 kmĀ² |
| 250 miĀ² | 647.49702758 kmĀ² |
| 500 miĀ² | 1,294.99405517 kmĀ² |
| 1,000 miĀ² | 2,589.98811034 kmĀ² |
Square kilometers to Square miles conversion table
| Square kilometers | Square miles |
|---|---|
| 1 kmĀ² | 0.38610216 miĀ² |
| 2 kmĀ² | 0.77220432 miĀ² |
| 3 kmĀ² | 1.15830648 miĀ² |
| 5 kmĀ² | 1.93051079 miĀ² |
| 10 kmĀ² | 3.86102159 miĀ² |
| 20 kmĀ² | 7.72204317 miĀ² |
| 25 kmĀ² | 9.65255396 miĀ² |
| 50 kmĀ² | 19.30510793 miĀ² |
| 100 kmĀ² | 38.61021585 miĀ² |
| 250 kmĀ² | 96.52553964 miĀ² |
| 500 kmĀ² | 193.05107927 miĀ² |
| 1,000 kmĀ² | 386.10215854 miĀ² |
Frequently asked questions
How many Square kilometers is one square mile?
One square mile is 2.58998811 Square kilometers.
Are these area conversions accurate?
Yes. They use the exact standard unit definitions, so results are accurate to the number of decimals shown.
What is the formula to convert Square miles to Square kilometers?
Multiply the number of Square miles by 2.58998811. To convert back, multiply Square kilometers by 0.38610216.
This tool is provided for general information only. Verify important figures independently. Ā· Last reviewed: August 25, 2026