Formula

in² = ft² x 144

Quick Rough Maths

To get the Square Inches, multiply the number of Square Feet by 144.0

Square Feet (ft²) in 1 Square Inch

There are 0.01 Square Feet in 1 Square Inch

Square Inches (in²) in 1 Square Foot

There are 144 Square Inches in 1 Square Foot

Symbol: **ft²**

Unit System: Imperial

Unit System: Imperial

The square foot is a unit of area and is an imperial unit with the symbol ft².

One square foot is equal in area to a square with edges one foot in length.

It is used a lot in expressing the internal size of a house, apartment, office or other properties so is a useful unit to understand.

Symbol: **in²**

Unit System: Imperial

Unit System: Imperial

The square inch is a unit of area and is an imperial unit with the symbol in².

One square inch is equal in area to a square with edges one inch in length.

The square inch is a common unit of measurement in the UK and US.

1ft² = 144in²

2ft² = 288in²

3ft² = 432in²

4ft² = 576in²

5ft² = 720in²

6ft² = 864in²

7ft² = 1008in²

8ft² = 1152in²

9ft² = 1296in²

10ft² = 1440in²

11ft² = 1584in²

12ft² = 1728in²

13ft² = 1872in²

14ft² = 2016in²

15ft² = 2160in²

16ft² = 2304in²

17ft² = 2448in²

18ft² = 2592in²

19ft² = 2736in²

20ft² = 2880in²

21ft² = 3024in²

22ft² = 3168in²

23ft² = 3312in²

24ft² = 3456in²

26ft² = 3744in²

27ft² = 3888in²

28ft² = 4032in²

29ft² = 4176in²

30ft² = 4320in²

31ft² = 4464in²

32ft² = 4608in²

33ft² = 4752in²

34ft² = 4896in²

35ft² = 5040in²

36ft² = 5184in²

37ft² = 5328in²

38ft² = 5472in²

39ft² = 5616in²

40ft² = 5760in²

41ft² = 5904in²

42ft² = 6048in²

43ft² = 6192in²

44ft² = 6336in²

45ft² = 6480in²

46ft² = 6624in²

47ft² = 6768in²

48ft² = 6912in²

49ft² = 7056in²

51ft² = 7344in²

52ft² = 7488in²

53ft² = 7632in²

54ft² = 7776in²

55ft² = 7920in²

56ft² = 8064in²

57ft² = 8208in²

58ft² = 8352in²

59ft² = 8496in²

60ft² = 8640in²

61ft² = 8784in²

62ft² = 8928in²

63ft² = 9072in²

64ft² = 9216in²

65ft² = 9360in²

66ft² = 9504in²

67ft² = 9648in²

68ft² = 9792in²

69ft² = 9936in²

70ft² = 10080in²

71ft² = 10224in²

72ft² = 10368in²

73ft² = 10512in²

74ft² = 10656in²

76ft² = 10944in²

77ft² = 11088in²

78ft² = 11232in²

79ft² = 11376in²

80ft² = 11520in²

81ft² = 11664in²

82ft² = 11808in²

83ft² = 11952in²

84ft² = 12096in²

85ft² = 12240in²

86ft² = 12384in²

87ft² = 12528in²

88ft² = 12672in²

89ft² = 12816in²

90ft² = 12960in²

91ft² = 13104in²

92ft² = 13248in²

93ft² = 13392in²

94ft² = 13536in²

95ft² = 13680in²

96ft² = 13824in²

97ft² = 13968in²

98ft² = 14112in²

99ft² = 14256in²