## Square Inches

A unit of area equal to one inch by one inch square.

Format

Accuracy

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ft² =

in² * 0.0069444

A unit of area equal to one inch by one inch square.

ft² =

in² * 0.0069444

The square foot is a unit of area used in the imperial and U.S. customary measurement systems.

A square measurement is the two-dimensional derivative of a linear measure, so a square foot is defined as the area of a square with sides 1 ft in length.

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

0in² | 0.00ft² |

1in² | 0.01ft² |

2in² | 0.01ft² |

3in² | 0.02ft² |

4in² | 0.03ft² |

5in² | 0.03ft² |

6in² | 0.04ft² |

7in² | 0.05ft² |

8in² | 0.06ft² |

9in² | 0.06ft² |

10in² | 0.07ft² |

11in² | 0.08ft² |

12in² | 0.08ft² |

13in² | 0.09ft² |

14in² | 0.10ft² |

15in² | 0.10ft² |

16in² | 0.11ft² |

17in² | 0.12ft² |

18in² | 0.12ft² |

19in² | 0.13ft² |

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

20in² | 0.14ft² |

21in² | 0.15ft² |

22in² | 0.15ft² |

23in² | 0.16ft² |

24in² | 0.17ft² |

25in² | 0.17ft² |

26in² | 0.18ft² |

27in² | 0.19ft² |

28in² | 0.19ft² |

29in² | 0.20ft² |

30in² | 0.21ft² |

31in² | 0.22ft² |

32in² | 0.22ft² |

33in² | 0.23ft² |

34in² | 0.24ft² |

35in² | 0.24ft² |

36in² | 0.25ft² |

37in² | 0.26ft² |

38in² | 0.26ft² |

39in² | 0.27ft² |

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

40in² | 0.28ft² |

41in² | 0.28ft² |

42in² | 0.29ft² |

43in² | 0.30ft² |

44in² | 0.31ft² |

45in² | 0.31ft² |

46in² | 0.32ft² |

47in² | 0.33ft² |

48in² | 0.33ft² |

49in² | 0.34ft² |

50in² | 0.35ft² |

51in² | 0.35ft² |

52in² | 0.36ft² |

53in² | 0.37ft² |

54in² | 0.38ft² |

55in² | 0.38ft² |

56in² | 0.39ft² |

57in² | 0.40ft² |

58in² | 0.40ft² |

59in² | 0.41ft² |