# Square Miles to Square Kilometers

This calculator provides conversion of square miles to square kilometers and backwards (sq km to sq mi).

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## Conversion Table

 square mile to square kilometers Conversion Table: sq mi to sq km 1.0 = 2.58999 2.0 = 5.17998 3.0 = 7.76996 4.0 = 10.35995 5.0 = 12.94994 6.0 = 15.53993 7.0 = 18.12992 8.0 = 20.7199 9.0 = 23.30989 square mile to square kilometers 10 = 25.89988 20 = 51.79976 30 = 77.69964 40 = 103.59952 50 = 129.49941 100 = 258.99881 500 = 1294.99406 1000 = 2589.98811 5000 = 12949.94055
 square kilometers to square miles Conversion Table: sq km to sq mi 1.0 = 0.38610 2.0 = 0.77220 3.0 = 1.15831 4.0 = 1.54441 5.0 = 1.93051 6.0 = 2.31661 7.0 = 2.70272 8.0 = 3.08882 9.0 = 3.47492 square kilometers to square miles 10 = 3.86102 20 = 7.72204 30 = 11.58306 40 = 15.44409 50 = 19.30511 100 = 38.61022 500 = 193.05108 1000 = 386.10216 5000 = 1930.51079

The square mile (abbreviation: sq mi. or mi², plural form: square miles) is a unit of area used in several different systems, including Imperial units, English units and United States customary units. One square mile = 2.58998811 square kilometers (sq km., km2) = 2589988.110336 square meters (m2) = 27,878,400 square feet = 258.9988110336 hectares = 3,097,600 square yards = 4,014,489,600 square inches.

## Area Conversion

Square feet to square meters (sq ft to sq m)
Square meters to square feet (sq m to sq ft)
Square centimeters to square inches (sq cm to sq in)
Square inches to square centimeters (sq in to sq cm)
Square inches to square decimeters (sq in to sq dm)
Square decimeters to square inches (sq dm to sq in)
Square decimeters to square feet (sq dm to sq ft)
Square feet to square decimeters (sq ft to sq dm)
Square feet to square yards (sq ft to sq yd)
Square yards to square feet (sq yd to sq ft)
Square yards to square meters (sq yd to sq m)
Square meters to square yards (sq m to sq yd)
Square yards to acres (sq yd to ac.)
Acres to square yards (ac to sq yd)
Acres to square feet (ac to sq ft)
Square feet to acres (sq ft to ac)
Square kilometers to acres (sq km to ac)
Acres to square kilometers (ac to sq km)
Acres to square meters (ac to sq m)
Square meters to acres (sq m to ac)
Acres to square miles (ac to sq mi)
Square miles to acres (sq mi to ac)
Square miles to square kilometers (sq mi to sq km)
Square kilometers to square miles (sq km to sq mi)
Square miles to hectares (sq mi to ha)
Hectares to square miles (ha to sq mi)
Hectares to square kilometers (ha to sq km)
Square kilometers to hectares (sq km to ha)
Square meters to hectares (sq m to ha)
Hectares to square meters (ha to sq m)
Square kilometers to square meters (sq km to sq m)
Square meters to square kilometers (sq m to sq km)
Square kilometers to square yards (sq km to sq yd)
Square yards to square kilometers (sq yd to sq km)
Hectares to acres (ha to ac)
Acres to hectares (ac to ha)
Square feet to square centimeters (sq ft to sq cm)
Square centimeters to square feet (sq cm to sq ft)
Square centimeters to square millimeters (sq cm to sq mm)
Square millimeters to square centimeters (sq mm to sq cm)