Convert square kilometers (km²) to square miles (mi²) instantly — type a value below.
To convert square kilometers to square miles, use this formula:
mi² = km² × 0.3861021585 (or divide by 2.58998811)
| Square kilometers (km²) | Square miles (mi²) |
|---|---|
| 0.1 km² | 0.0386102 mi² |
| 0.25 km² | 0.0965255 mi² |
| 0.5 km² | 0.193051 mi² |
| 1 km² | 0.386102 mi² |
| 2 km² | 0.772204 mi² |
| 3 km² | 1.15831 mi² |
| 4 km² | 1.54441 mi² |
| 5 km² | 1.93051 mi² |
| 6 km² | 2.31661 mi² |
| 7 km² | 2.70272 mi² |
| 8 km² | 3.08882 mi² |
| 9 km² | 3.47492 mi² |
| 10 km² | 3.86102 mi² |
| 12 km² | 4.63323 mi² |
| 15 km² | 5.79153 mi² |
| 20 km² | 7.72204 mi² |
| 25 km² | 9.65255 mi² |
| 30 km² | 11.5831 mi² |
| 40 km² | 15.4441 mi² |
| 50 km² | 19.3051 mi² |
| 60 km² | 23.1661 mi² |
| 70 km² | 27.0272 mi² |
| 75 km² | 28.9577 mi² |
| 80 km² | 30.8882 mi² |
| 90 km² | 34.7492 mi² |
| 100 km² | 38.6102 mi² |
| 150 km² | 57.9153 mi² |
| 200 km² | 77.2204 mi² |
| 250 km² | 96.5255 mi² |
| 500 km² | 193.051 mi² |
| 1,000 km² | 386.102 mi² |
A square kilometer is 1,000,000 square meters, or 100 hectares. It is used for the area of cities, lakes and countries.
A square mile is the area of a square 1 mile on each side, 640 acres or about 2.59 km².
Need other units? Use the full area converter.