# Convert Square Inches to Square Feet

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

**Results in Square Feet:**

## How to Convert Square Inches to Square Feet

To convert a square inch measurement to a square foot measurement, multiply the area by the conversion ratio. One square inch is equal to 0.006944 square feet, so use this simple formula to convert:

The area in square feet is equal to the square inches multiplied by 0.006944.

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

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

## Square Inches

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

The square inch is a US customary and imperial unit of area. A square inch is sometimes also referred to as a square in. Square inches can be abbreviated as *sq in*, and are also sometimes abbreviated as *in²*. For example, 1 square inch can be written as 1 sq in or 1 in².

## 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 Inch Measurements and Equivalent Square Foot Conversions

Square Inches | Square Feet |
---|---|

1 sq in | 0.006944 sq ft |

2 sq in | 0.013889 sq ft |

3 sq in | 0.020833 sq ft |

4 sq in | 0.027778 sq ft |

5 sq in | 0.034722 sq ft |

6 sq in | 0.041667 sq ft |

7 sq in | 0.048611 sq ft |

8 sq in | 0.055556 sq ft |

9 sq in | 0.0625 sq ft |

10 sq in | 0.069444 sq ft |

11 sq in | 0.076389 sq ft |

12 sq in | 0.083333 sq ft |

13 sq in | 0.090278 sq ft |

14 sq in | 0.097222 sq ft |

15 sq in | 0.104167 sq ft |

16 sq in | 0.111111 sq ft |

17 sq in | 0.118056 sq ft |

18 sq in | 0.125 sq ft |

19 sq in | 0.131944 sq ft |

20 sq in | 0.138889 sq ft |

21 sq in | 0.145833 sq ft |

22 sq in | 0.152778 sq ft |

23 sq in | 0.159722 sq ft |

24 sq in | 0.166667 sq ft |

25 sq in | 0.173611 sq ft |

26 sq in | 0.180556 sq ft |

27 sq in | 0.1875 sq ft |

28 sq in | 0.194444 sq ft |

29 sq in | 0.201389 sq ft |

30 sq in | 0.208333 sq ft |

31 sq in | 0.215278 sq ft |

32 sq in | 0.222222 sq ft |

33 sq in | 0.229167 sq ft |

34 sq in | 0.236111 sq ft |

35 sq in | 0.243056 sq ft |

36 sq in | 0.25 sq ft |

37 sq in | 0.256944 sq ft |

38 sq in | 0.263889 sq ft |

39 sq in | 0.270833 sq ft |

40 sq in | 0.277778 sq ft |

## More Square Inch Area Conversions

**US Customary**

- Convert to Square Miles
- 1 sq in is equal to 2.491E-10 square miles
- Convert to Acres
- 1 sq in is equal to 1.5942E-7 acres
- Convert to Square Yards
- 1 sq in is equal to 0.000772 square yards

**SI Units**

- Convert to Square Kilometers
- 1 sq in is equal to 6.4516E-10 square kilometers
- Convert to Square Meters
- 1 sq in is equal to 0.000645 square meters
- Convert to Square Centimeters
- 1 sq in is equal to 6.4516 square centimeters
- Convert to Square Millimeters
- 1 sq in is equal to 645.16 square millimeters

**Other Metric Units**

- Convert to Hectares
- 1 sq in is equal to 6.4516E-8 hectares
- Convert to Ares
- 1 sq in is equal to 6.4516E-6 ares