inch | 1 in | 2 in | 3 in | 4 in | 5 in | 6 in | 7 in | 8 in | 9 in | 10 in | 11 in | 12 in | 13 in | 14 in | 15 in | 16 in | 17 in | 18 in | 19 in | 20 in | 21 in | 22 in | 23 in | 24 in | 25 in | 26 in | 27 in | 28 in | 29 in | 30 in | 31 in | 32 in | 33 in | 34 in | 35 in | 36 in | 37 in | 38 in | 39 in | 40 in | 41 in | 42 in | 43 in | 44 in | 45 in | 46 in | 47 in | 48 in | 49 in | 50 in | 51 in | 52 in | 53 in | 54 in | 55 in | 56 in | 57 in | 58 in | 59 in | 60 in | 61 in | 62 in | 63 in | 64 in | 65 in | 66 in | 67 in | 68 in | 69 in | 70 in | 71 in | 72 in | 73 in | 74 in | 75 in | 76 in | 77 in | 78 in | 79 in | 80 in | 81 in | 82 in | 83 in | 84 in | 85 in | 86 in | 87 in | 88 in | 89 in | 90 in | 91 in | 92 in | 93 in | 94 in | 95 in | 96 in | 97 in | 98 in | 99 in | 100 in |
foot | 0.0833333 ft | 0.1666667 ft | 0.25 ft | 0.3333333 ft | 0.4166667 ft | 0.5 ft | 0.5833333 ft | 0.6666667 ft | 0.75 ft | 0.8333333 ft | 0.9166667 ft | 1 ft | 1.0833333 ft | 1.1666667 ft | 1.25 ft | 1.3333333 ft | 1.4166667 ft | 1.5 ft | 1.5833333 ft | 1.6666667 ft | 1.75 ft | 1.8333333 ft | 1.9166667 ft | 2 ft | 2.0833333 ft | 2.1666667 ft | 2.25 ft | 2.3333333 ft | 2.4166667 ft | 2.5 ft | 2.5833333 ft | 2.6666667 ft | 2.75 ft | 2.8333333 ft | 2.9166667 ft | 3 ft | 3.0833333 ft | 3.1666667 ft | 3.25 ft | 3.3333333 ft | 3.4166667 ft | 3.5 ft | 3.5833333 ft | 3.6666667 ft | 3.75 ft | 3.8333333 ft | 3.9166667 ft | 4 ft | 4.0833333 ft | 4.1666667 ft | 4.25 ft | 4.3333333 ft | 4.4166667 ft | 4.5 ft | 4.5833333 ft | 4.6666667 ft | 4.75 ft | 4.8333333 ft | 4.9166667 ft | 5 ft | 5.0833333 ft | 5.1666667 ft | 5.25 ft | 5.3333333 ft | 5.4166667 ft | 5.5 ft | 5.5833333 ft | 5.6666667 ft | 5.75 ft | 5.8333333 ft | 5.9166667 ft | 6 ft | 6.0833333 ft | 6.1666667 ft | 6.25 ft | 6.3333333 ft | 6.4166667 ft | 6.5 ft | 6.5833333 ft | 6.6666667 ft | 6.75 ft | 6.8333333 ft | 6.9166667 ft | 7 ft | 7.0833333 ft | 7.1666667 ft | 7.25 ft | 7.3333333 ft | 7.4166667 ft | 7.5 ft | 7.5833333 ft | 7.6666667 ft | 7.75 ft | 7.8333333 ft | 7.9166667 ft | 8 ft | 8.0833333 ft | 8.1666667 ft | 8.25 ft | 8.3333333 ft |
The inch (abbreviation: in or ″) is a unit of length in the (British) imperial and United States customary systems of measurement now formally equal to 1⁄36 yard but usually understood as 1⁄12 of a foot. Derived from the Roman uncia ("twelfth"), inch is also sometimes used to translate related units in other measurement systems, usually understood as deriving from the width of the human thumb.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
inch | in | ≡ 2.54 cm ≡ 1⁄36 yd ≡ 1⁄12 ft | ≡ 0.0254 m | Imperial/US |
inches | feet | inches | feet |
---|---|---|---|
1 | ≡ 0.083333333333333 | 4 | ≡ 0.33333333333333 |
1.5 | ≡ 0.125 | 4.5 | ≡ 0.375 |
2 | ≡ 0.16666666666667 | 5 | ≡ 0.41666666666667 |
2.5 | ≡ 0.20833333333333 | 5.5 | ≡ 0.45833333333333 |
3 | ≡ 0.25 | 6 | ≡ 0.5 |
The foot (pl. feet; abbreviation: ft; symbol: ′, the prime symbol) is a unit of length in the imperial and US customary systems of measurement. Since 1959, both units have been defined by international agreement as equivalent to 0.3048 meters exactly. In both systems, the foot comprises 12 inches and three feet compose a yard.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
foot | ft | ≡ 0.3048 m ≡ 1⁄3 yd ≡ 12 inches | ≡ 0.3048 m | Imperial/US |
feet | inches | feet | inches |
---|---|---|---|
1 | ≡ 12 | 4 | ≡ 48 |
1.5 | ≡ 18 | 4.5 | ≡ 54 |
2 | ≡ 24 | 5 | ≡ 60 |
2.5 | ≡ 30 | 5.5 | ≡ 66 |
3 | ≡ 36 | 6 | ≡ 72 |
inches | feet |
---|---|
1 | ≡ 0.0833333 |
12 | ≡ 1 |
You can find the conversion in other languages in the following:
Symbol | Definition |
---|---|
≡ | exactly equal |
≈ | approximately equal to |
= | equal to |
digits | indicates that digits repeat infinitely (e.g. 8.294 369 corresponds to 8.294 369 369 369 369 …) |