1 square mile to square kilometers
1 mi² = 2.589988 km². Change the amount below, or read the formula and the reference table further down.
1 square mile equals
square kilometers
1 mi² = 2.589988 km²
The formula
Square miles and square kilometers both measure area from the same zero, so a single multiplier does the job.
km² = mi² × 2.58998811
Going the other way? Convert square kilometers to square miles.
Square miles to square kilometers table
Values either side of 1 mi².
| Square miles (mi²) | Square kilometers (km²) |
|---|---|
| -4 | -10.36 |
| -3.5 | -9.065 |
| -3 | -7.77 |
| -2.5 | -6.475 |
| -2 | -5.18 |
| -1.5 | -3.885 |
| -1 | -2.59 |
| -0.5 | -1.295 |
| 0 | 0 |
| 0.5 | 1.295 |
| 1 | 2.59 |
| 1.5 | 3.885 |
| 2 | 5.18 |
| 2.5 | 6.475 |
| 3 | 7.77 |
| 3.5 | 9.065 |
| 4 | 10.36 |
| 4.5 | 11.6549 |
| 5 | 12.9499 |
| 5.5 | 14.2449 |
| 6 | 15.5399 |
Questions people ask
- How many square kilometers are in a square mile?
- One square mile equals 2.58998811 square kilometers.
- How do I convert square miles to square kilometers by hand?
- Multiply the number of square miles by 2.58998811. For a rough check, 2.6 is close enough for most everyday use.
- What is 1 square mile in square kilometers?
- 1 square mile is 2.589988 square kilometers.
Calcuit generates this page from a unit table, so the factors here match every other page on the site.