Convert square kilometers to square miles quickly and accurately using this free online converter
Used for land area, room size, and real estate measurements.
💡 Square meters are standard internationally; square feet are used in the US.
mi² = km² × 0.386102
Example: 1 km² × 0.386102 = 0.386102 mi²
Use square meters internationally; square feet for US properties.
Common uses: real estate, land measurement, and floor plans.
How do I convert km² to mi²?
Multiply the value in Square kilometers by 0.386102. For example: 10 km² = 3.861 mi².
When should I use Square Miles instead of Square kilometers?
Use square meters internationally; square feet for US properties.
Is this converter accurate?
Yes. We use internationally recognized conversion factors, updated to current standards.
| Square kilometers (km²) | Square Miles (mi²) |
|---|---|
| 1 km² | 0.386102 mi² |
| 5 km² | 1.9305 mi² |
| 10 km² | 3.861 mi² |
| 25 km² | 9.6526 mi² |
| 50 km² | 19.3051 mi² |
| 100 km² | 38.6102 mi² |
| 500 km² | 193.0511 mi² |
| 1000 km² | 386.1022 mi² |