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Square Miles to Square Kilometers

Convert mi² to km² — free online area converter

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1 mi² = 2.589988 km²

Square Miles to Square Kilometers Quick Reference

mi²km²
0.10.2589988
0.51.294994
12.589988
25.179976
512.94994
1025.89988
2051.79976
50129.4994
100258.9988
5001294.994
1,0002589.988

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How to Convert Square Miles to Square Kilometers

This free online converter lets you instantly convert Square Miles (mi²) to Square Kilometers (km²). Simply enter a value and the result updates automatically. Use the swap button to reverse the conversion.

The quick reference table below shows common Square Miles values and their Square Kilometers equivalents. All calculations are performed locally in your browser — fast, private, and accurate.

FAQ
How many Square Kilometers are in one Square Miles?
One Square Miles (mi²) equals 2.589988 Square Kilometers (km²).
How do I convert Square Miles to Square Kilometers?
Multiply the Square Miles value by 2.589988. For example, 10 mi² = 25.89988 km².
How do I convert Square Kilometers back to Square Miles?
Multiply the Square Kilometers value by 0.38610217, or use the swap button. One km² = 0.38610217 mi².
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