Square Miles to Square Kilometers Converter
Convert square miles to square kilometers instantly. 1 mi² = 2.58999 km². Includes the formula, examples and a table of common values.
Formula
km² = mi² × 2.58999
1 mi² → 2.58999 km²
Conversion table
| mi² | km² |
|---|---|
| 1 mi² | 2.58999 km² |
| 2 mi² | 5.17998 km² |
| 3 mi² | 7.76996 km² |
| 4 mi² | 10.36 km² |
| 5 mi² | 12.9499 km² |
| 6 mi² | 15.5399 km² |
| 7 mi² | 18.1299 km² |
| 8 mi² | 20.7199 km² |
| 9 mi² | 23.3099 km² |
| 10 mi² | 25.8999 km² |
| 12 mi² | 31.0799 km² |
| 15 mi² | 38.8498 km² |
Popular conversions
Reverse conversion
Square Kilometers → Square Miles
Other conversions
- Square Meters → Square Kilometers
- Hectares → Square Kilometers
- Square Feet → Square Kilometers
- Acres → Square Kilometers
- Square Miles → Square Meters
- Square Miles → Hectares
- Square Miles → Square Feet
- Square Miles → Acres
Frequently asked questions
How do I convert Square Miles to Square Kilometers?
Use this formula: km² = mi² × 2.58999. For example, 1 mi² → 2.58999 km².
How many square kilometers are in 1 square mile?
1 mi² = 2.58999 km².
How many square miles are in 1 square kilometer?
1 km² = 0.386102 mi².
Is this conversion exact?
Results are rounded to six significant digits; the conversion factor itself is exact or very precise for these units.