# Convert Square Feet to Square Miles

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

**Results in Square Miles:**

## How to Convert Square Feet to Square Miles

To convert a square foot measurement to a square mile measurement, multiply the area by the conversion ratio. One square foot is equal to 3.587E-8 square miles, so use this simple formula to convert:

The area in square miles is equal to the square feet multiplied by 3.587E-8.

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

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

## Square Feet

One square foot is equal to the area of a square with sides that are 1 foot in length. One square foot is roughly equal to 144 square inches.

The square foot is a US customary and imperial unit of area. A square foot is sometimes also referred to as a square ft. Square feet can be abbreviated as *sq ft*, and are also sometimes abbreviated as *ft²*. For example, 1 square foot can be written as 1 sq ft or 1 ft².

Try our square footage calculator to calculate the area of a space.

## 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 Foot Measurements and Equivalent Square Mile Conversions

Square Feet | Square Miles |
---|---|

1 sq ft | 0.00000003587 sq mi |

2 sq ft | 0.00000007174 sq mi |

3 sq ft | 0.00000010761 sq mi |

4 sq ft | 0.00000014348 sq mi |

5 sq ft | 0.00000017935 sq mi |

6 sq ft | 0.00000021522 sq mi |

7 sq ft | 0.00000025109 sq mi |

8 sq ft | 0.00000028696 sq mi |

9 sq ft | 0.00000032283 sq mi |

10 sq ft | 0.0000003587 sq mi |

11 sq ft | 0.00000039457 sq mi |

12 sq ft | 0.00000043044 sq mi |

13 sq ft | 0.00000046631 sq mi |

14 sq ft | 0.00000050218 sq mi |

15 sq ft | 0.00000053805 sq mi |

16 sq ft | 0.00000057392 sq mi |

17 sq ft | 0.00000060979 sq mi |

18 sq ft | 0.00000064566 sq mi |

19 sq ft | 0.00000068153 sq mi |

20 sq ft | 0.0000007174 sq mi |

21 sq ft | 0.00000075327 sq mi |

22 sq ft | 0.00000078914 sq mi |

23 sq ft | 0.00000082501 sq mi |

24 sq ft | 0.00000086088 sq mi |

25 sq ft | 0.00000089675 sq mi |

26 sq ft | 0.00000093262 sq mi |

27 sq ft | 0.00000096849 sq mi |

28 sq ft | 0.0000010044 sq mi |

29 sq ft | 0.0000010402 sq mi |

30 sq ft | 0.0000010761 sq mi |

31 sq ft | 0.000001112 sq mi |

32 sq ft | 0.0000011478 sq mi |

33 sq ft | 0.0000011837 sq mi |

34 sq ft | 0.0000012196 sq mi |

35 sq ft | 0.0000012555 sq mi |

36 sq ft | 0.0000012913 sq mi |

37 sq ft | 0.0000013272 sq mi |

38 sq ft | 0.0000013631 sq mi |

39 sq ft | 0.0000013989 sq mi |

40 sq ft | 0.0000014348 sq mi |

## More Square Foot Area Conversions

**US Customary**

- Convert to Acres
- 1 sq ft is equal to 2.2957E-5 acres
- Convert to Square Yards
- 1 sq ft is equal to 0.111111 square yards
- Convert to Square Inches
- 1 sq ft is equal to 144 square inches

**SI Units**

- Convert to Square Kilometers
- 1 sq ft is equal to 9.2903E-8 square kilometers
- Convert to Square Meters
- 1 sq ft is equal to 0.092903 square meters
- Convert to Square Centimeters
- 1 sq ft is equal to 929.0304 square centimeters
- Convert to Square Millimeters
- 1 sq ft is equal to 92,903 square millimeters

**Other Metric Units**

- Convert to Hectares
- 1 sq ft is equal to 9.2903E-6 hectares
- Convert to Ares
- 1 sq ft is equal to 0.000929 ares