Square Miles to Square Kilometers Converter
Convert square miles to square kilometers. 1 sq mi = 2.58999 km².
Formula
km² = Square Miles × 2.58999
How to Convert
Multiply square miles by 2.58999 to get square kilometers.
Example: 10 sq mi = 10 × 2.59 = 25.9 km²
Conversion Table
| Square Miles (mi²) | Square Kilometers (km²) |
|---|---|
| 1 | 2.58999 |
| 5 | 12.95 |
| 10 | 25.9 |
| 50 | 129.5 |
| 100 | 259 |
| 500 | 1295 |
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Last updated: 2026-08-08