Square mile to Square kilometer (mi² → km²)
Convert square mile to square kilometer instantly. The conversion factor below is exact by international definition.
Realtime·area·imperial
Exact
mi²
× 2.59
km²
2.59
Precision [auto]
6
📐mi² to km² formulaExact
km² = mi² × 2.589988110336
Inverse: mi² = km² × 0.386102158542
Worked example: 1 mi² = 2.589988110336 km²
ℹ️About these units
Square mile (mi²)
Square kilometer (km²)
📊Reference table: mi² → km²
| Square mile (mi²) | Square kilometer (km²) |
|---|---|
| 1 | 2.59 |
| 2 | 5.18 |
| 5 | 12.9499 |
| 10 | 25.8999 |
| 15 | 38.8498 |
| 20 | 51.7998 |
| 25 | 64.7497 |
| 50 | 129.4994 |
| 100 | 258.9988 |
| 250 | 647.497 |
| 500 | 1,294.99 |
| 750 | 1,942.49 |
| 1,000 | 2,589.99 |
Want a downloadable CSV? Append ?format=csv to the API /api/v1/table endpoint.
🔁Reverse & related
🔌API & widget
GET https://convertnavi.com/api/v1/convert?value=10&from=square-mile&to=square-kilometerEmbed this converter
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<script async src="https://convertnavi.com/embed.js"></script>