Conversion Amigo

Square Miles to Square Kilometers Converter

2.58998811

1 mi² = 2.58998811 km²

How to convert square miles to square kilometers

square kilometers = square miles × 2.58998811

To convert square miles to square kilometers, multiply the number of square miles by 2.58998811.

1 mi² = 2.58998811 km²

Examples

  • 640 acres: 1 mi² × 2.58998811 = 2.58998811 km²
  • 100 mi² × 2.58998811 = 258.998811 km²

Good to know

One square mile is about 2.59 square kilometers. Note that this is the square of the linear factor (1.609344), not the factor itself.

Square miles to square kilometers conversion table

Square miles (mi²) Square kilometers (km²)
1 mi² 2.58998811 km²
2 mi² 5.17997622 km²
3 mi² 7.76996433 km²
4 mi² 10.3599524 km²
5 mi² 12.9499406 km²
10 mi² 25.8998811 km²
15 mi² 38.8498217 km²
20 mi² 51.7997622 km²
25 mi² 64.7497028 km²
50 mi² 129.499406 km²
75 mi² 194.249108 km²
100 mi² 258.998811 km²
200 mi² 517.997622 km²
500 mi² 1,294.99406 km²
1,000 mi² 2,589.98811 km²
5,000 mi² 12,949.9406 km²
10,000 mi² 25,899.8811 km²

Unit definitions

Square mile (mi²)
A square mile is 640 acres, exactly 2,589,988.110336 square meters. It is used in the United States for the areas of cities, counties and states.
Square kilometer (km²)
A square kilometer is 1,000,000 square meters, or 100 hectares. It is used for the areas of cities, countries and lakes.

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