# Convert Square Kilometers to Square Miles

Enter the area in square kilometers below to get the value converted to square miles.

**Results in Square Miles:**

## How to Convert Square Kilometers to Square Miles

To convert a square kilometer measurement to a square mile measurement, multiply the area by the conversion ratio. One square kilometer is equal to 0.386102 square miles, so use this simple formula to convert:

The area in square miles is equal to the square kilometers multiplied by 0.386102.

**For example,**here's how to convert 5 square kilometers to square miles using the formula above.

Square kilometers and square miles are both units used to measure area. Keep reading to learn more about each unit of measure.

## Square Kilometers

One square kilometer is equal to the area of a square with sides that are 1 kilometer in length.

The square kilometer, or square kilometre, is a multiple of the square meter, which is the SI derived unit for area. In the metric system, "kilo" is the prefix for 10^{3}. A square kilometer is sometimes also referred to as a square km. Square kilometers can be abbreviated as *sq km*, and are also sometimes abbreviated as *km²*. For example, 1 square kilometer can be written as 1 sq km or 1 km².

## Square Miles

One square mile is equal to the area of a square with sides that are 1 mile long. One square mile is roughly equal to 2.59 square kilometers.

The square mile is a US customary and imperial unit of area. Square miles can be abbreviated as *sq mi*, and are also sometimes abbreviated as *mi²*. For example, 1 square mile can be written as 1 sq mi or 1 mi².

## Square Kilometer Measurements and Equivalent Square Mile Conversions

Square Kilometers | Square Miles |
---|---|

1 sq km | 0.386102 sq mi |

2 sq km | 0.772204 sq mi |

3 sq km | 1.1583 sq mi |

4 sq km | 1.5444 sq mi |

5 sq km | 1.9305 sq mi |

6 sq km | 2.3166 sq mi |

7 sq km | 2.7027 sq mi |

8 sq km | 3.0888 sq mi |

9 sq km | 3.4749 sq mi |

10 sq km | 3.861 sq mi |

11 sq km | 4.2471 sq mi |

12 sq km | 4.6332 sq mi |

13 sq km | 5.0193 sq mi |

14 sq km | 5.4054 sq mi |

15 sq km | 5.7915 sq mi |

16 sq km | 6.1776 sq mi |

17 sq km | 6.5637 sq mi |

18 sq km | 6.9498 sq mi |

19 sq km | 7.3359 sq mi |

20 sq km | 7.722 sq mi |

21 sq km | 8.1081 sq mi |

22 sq km | 8.4942 sq mi |

23 sq km | 8.8804 sq mi |

24 sq km | 9.2665 sq mi |

25 sq km | 9.6526 sq mi |

26 sq km | 10.04 sq mi |

27 sq km | 10.42 sq mi |

28 sq km | 10.81 sq mi |

29 sq km | 11.2 sq mi |

30 sq km | 11.58 sq mi |

31 sq km | 11.97 sq mi |

32 sq km | 12.36 sq mi |

33 sq km | 12.74 sq mi |

34 sq km | 13.13 sq mi |

35 sq km | 13.51 sq mi |

36 sq km | 13.9 sq mi |

37 sq km | 14.29 sq mi |

38 sq km | 14.67 sq mi |

39 sq km | 15.06 sq mi |

40 sq km | 15.44 sq mi |

## More Square Kilometer Area Conversions

**US Customary**

- Convert to Acres
- 1 sq km is equal to 247.105381 acres
- Convert to Square Yards
- 1 sq km is equal to 1,195,990 square yards
- Convert to Square Feet
- 1 sq km is equal to 10,763,910.4 square feet
- Convert to Square Inches
- 1 sq km is equal to 1,550,003,100 square inches

**SI Units**

- Convert to Square Meters
- 1 sq km is equal to 1,000,000 square meters
- Convert to Square Centimeters
- 1 sq km is equal to 10,000,000,000 square centimeters
- Convert to Square Millimeters
- 1 sq km is equal to 1,000,000,000,000 square millimeters

**Other Metric Units**

- Convert to Hectares
- 1 sq km is equal to 100 hectares
- Convert to Ares
- 1 sq km is equal to 10,000 ares