Convert square kilometers to square miles
1 km² = 0.38610216 mi². Change the amount below, or read the formula and the reference table further down.
1 square kilometer equals
square miles
1 km² = 0.38610216 mi²
The formula
Square kilometers and square miles both measure area from the same zero, so a single multiplier does the job.
mi² = km² × 0.3861021585
Going the other way? Convert square miles to square kilometers.
Square kilometers to square miles table
Common values, rounded for reading.
| Square kilometers (km²) | Square miles (mi²) |
|---|---|
| 1 | 0.386102 |
| 2 | 0.772204 |
| 3 | 1.1583 |
| 4 | 1.5444 |
| 5 | 1.9305 |
| 6 | 2.3166 |
| 7 | 2.7027 |
| 8 | 3.0888 |
| 9 | 3.4749 |
| 10 | 3.861 |
| 15 | 5.7915 |
| 20 | 7.722 |
| 25 | 9.6526 |
| 30 | 11.5831 |
| 40 | 15.4441 |
| 50 | 19.3051 |
| 75 | 28.9577 |
| 100 | 38.6102 |
| 250 | 96.5255 |
| 500 | 193.05 |
| 1,000 | 386.1 |
Questions people ask
- How many square miles are in a square kilometer?
- One square kilometer equals 0.3861021585 square miles.
- How do I convert square kilometers to square miles by hand?
- Multiply the number of square kilometers by 0.3861021585. For a rough check, 0.386 is close enough for most everyday use.
- What is 1 square kilometer in square miles?
- 1 square kilometer is 0.38610216 square miles.
Calcuit generates this page from a unit table, so the factors here match every other page on the site.