Square kilometers to Square miles
Convert square kilometers to square miles instantly. 1 km² = 0.386102 mi²
Result
Copied
Open km² → mi² page
Quick answers
- 1 km² = 0.3861 mi²
- 5 km² = 1.9305 mi²
- 10 km² = 3.861 mi²
- 20 km² = 7.722 mi²
- 50 km² = 19.305 mi²
- 100 km² = 38.61 mi²
Square kilometers to Square miles conversion table
| Square kilometers (km²) | Square miles (mi²) |
|---|---|
| 1 km² | 0.3861 mi² |
| 2 km² | 0.7722 mi² |
| 3 km² | 1.1583 mi² |
| 4 km² | 1.5444 mi² |
| 5 km² | 1.9305 mi² |
| 6 km² | 2.3166 mi² |
| 7 km² | 2.7027 mi² |
| 8 km² | 3.0888 mi² |
| 9 km² | 3.4749 mi² |
| 10 km² | 3.861 mi² |
| 15 km² | 5.7915 mi² |
| Square kilometers (km²) | Square miles (mi²) |
|---|---|
| 20 km² | 7.722 mi² |
| 25 km² | 9.6526 mi² |
| 30 km² | 11.583 mi² |
| 40 km² | 15.444 mi² |
| 50 km² | 19.305 mi² |
| 75 km² | 28.958 mi² |
| 100 km² | 38.61 mi² |
| 250 km² | 96.526 mi² |
| 500 km² | 193.05 mi² |
| 1,000 km² | 386.1 mi² |
Conversion formula
square miles = square kilometers × 0.3861021585
Example: 10 km² × 0.3861021585 = 3.861 mi²
A square kilometer is 100 hectares, about 0.386 square miles. A square mile is 640 acres, about 2.59 square kilometers.
You may also see this conversion written as “sq km to sq miles”.
Questions
How many square miles are in one square kilometer?
One square kilometer is 0.386102159 square miles.
How do you convert square kilometers to square miles?
Multiply by 0.3861021585. The factor comes from the exact definitions of both units, so the only rounding is in the display.
Related conversions
- Square miles to square kilometers1 mi² = 2.59 km²
- Square miles to acres1 mi² = 640 ac
- Acres to square miles1 ac = 0.0015625 mi²
- Square feet to square meters1 ft² = 0.092903 m²
- Square meters to square feet1 m² = 10.764 ft²
- Acres to hectares1 ac = 0.40469 ha
- Hectares to acres1 ha = 2.4711 ac
- Acres to square feet1 ac = 43,560 ft²
Updated