| 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 |
| finger (cloth) | 0.2222222 finger (cloth) | 0.4444444 finger (cloth) | 0.6666667 finger (cloth) | 0.8888889 finger (cloth) | 1.1111111 finger (cloth) | 1.3333333 finger (cloth) | 1.5555556 finger (cloth) | 1.7777778 finger (cloth) | 2 finger (cloth) | 2.2222222 finger (cloth) | 2.4444444 finger (cloth) | 2.6666667 finger (cloth) | 2.8888889 finger (cloth) | 3.1111111 finger (cloth) | 3.3333333 finger (cloth) | 3.5555556 finger (cloth) | 3.7777778 finger (cloth) | 4 finger (cloth) | 4.2222222 finger (cloth) | 4.4444444 finger (cloth) | 4.6666667 finger (cloth) | 4.8888889 finger (cloth) | 5.1111111 finger (cloth) | 5.3333333 finger (cloth) | 5.5555556 finger (cloth) | 5.7777778 finger (cloth) | 6 finger (cloth) | 6.2222222 finger (cloth) | 6.4444444 finger (cloth) | 6.6666667 finger (cloth) | 6.8888889 finger (cloth) | 7.1111111 finger (cloth) | 7.3333333 finger (cloth) | 7.5555556 finger (cloth) | 7.7777778 finger (cloth) | 8 finger (cloth) | 8.2222222 finger (cloth) | 8.4444444 finger (cloth) | 8.6666667 finger (cloth) | 8.8888889 finger (cloth) | 9.1111111 finger (cloth) | 9.3333333 finger (cloth) | 9.5555556 finger (cloth) | 9.7777778 finger (cloth) | 10 finger (cloth) | 10.2222222 finger (cloth) | 10.4444444 finger (cloth) | 10.6666667 finger (cloth) | 10.8888889 finger (cloth) | 11.1111111 finger (cloth) | 11.3333333 finger (cloth) | 11.5555556 finger (cloth) | 11.7777778 finger (cloth) | 12 finger (cloth) | 12.2222222 finger (cloth) | 12.4444444 finger (cloth) | 12.6666667 finger (cloth) | 12.8888889 finger (cloth) | 13.1111111 finger (cloth) | 13.3333333 finger (cloth) | 13.5555556 finger (cloth) | 13.7777778 finger (cloth) | 14 finger (cloth) | 14.2222222 finger (cloth) | 14.4444444 finger (cloth) | 14.6666667 finger (cloth) | 14.8888889 finger (cloth) | 15.1111111 finger (cloth) | 15.3333333 finger (cloth) | 15.5555556 finger (cloth) | 15.7777778 finger (cloth) | 16 finger (cloth) | 16.2222222 finger (cloth) | 16.4444444 finger (cloth) | 16.6666667 finger (cloth) | 16.8888889 finger (cloth) | 17.1111111 finger (cloth) | 17.3333333 finger (cloth) | 17.5555556 finger (cloth) | 17.7777778 finger (cloth) | 18 finger (cloth) | 18.2222222 finger (cloth) | 18.4444444 finger (cloth) | 18.6666667 finger (cloth) | 18.8888889 finger (cloth) | 19.1111111 finger (cloth) | 19.3333333 finger (cloth) | 19.5555556 finger (cloth) | 19.7777778 finger (cloth) | 20 finger (cloth) | 20.2222222 finger (cloth) | 20.4444444 finger (cloth) | 20.6666667 finger (cloth) | 20.8888889 finger (cloth) | 21.1111111 finger (cloth) | 21.3333333 finger (cloth) | 21.5555556 finger (cloth) | 21.7777778 finger (cloth) | 22 finger (cloth) | 22.2222222 finger (cloth) |
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 | finger (cloth) | inches | finger (cloth) |
|---|---|---|---|
| 1 | = 0.22222222222222 | 4 | = 0.88888888888889 |
| 1.5 | = 0.33333333333333 | 4.5 | = 1 |
| 2 | = 0.44444444444444 | 5 | = 1.1111111111111 |
| 2.5 | = 0.55555555555556 | 5.5 | = 1.2222222222222 |
| 3 | = 0.66666666666667 | 6 | = 1.3333333333333 |
A finger (sometimes fingerbreadth or finger's breadth) is any of several units of measurement that are approximately the width of an adult human finger, including:
The digit, also known as digitus or digitus transversus (Latin), dactyl (Greek) or dactylus, or finger's breadth — 3⁄4 of an inch or 1⁄16 of a foot
| Name of unit | Symbol | Definition | Relation to SI units | Unit System |
|---|---|---|---|---|
| finger (cloth) | ≡ 4 ⁄12 in | = 0.1143 m | Other (Length) |
| finger (cloth) | inches | finger (cloth) | inches |
|---|---|---|---|
| 1 | = 4.5 | 4 | = 18 |
| 1.5 | = 6.75 | 4.5 | = 20.25 |
| 2 | = 9 | 5 | = 22.5 |
| 2.5 | = 11.25 | 5.5 | = 24.75 |
| 3 | = 13.5 | 6 | = 27 |
| inches | finger (cloth) |
|---|---|
| 1 | = 0.2222222 |
| 4.5 | = 1 |
| 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 …) |