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 |
cubit | 0.0508 cubit | 0.1016 cubit | 0.1524 cubit | 0.2032 cubit | 0.254 cubit | 0.3048 cubit | 0.3556 cubit | 0.4064 cubit | 0.4572 cubit | 0.508 cubit | 0.5588 cubit | 0.6096 cubit | 0.6604 cubit | 0.7112 cubit | 0.762 cubit | 0.8128 cubit | 0.8636 cubit | 0.9144 cubit | 0.9652 cubit | 1.016 cubit | 1.0668 cubit | 1.1176 cubit | 1.1684 cubit | 1.2192 cubit | 1.27 cubit | 1.3208 cubit | 1.3716 cubit | 1.4224 cubit | 1.4732 cubit | 1.524 cubit | 1.5748 cubit | 1.6256 cubit | 1.6764 cubit | 1.7272 cubit | 1.778 cubit | 1.8288 cubit | 1.8796 cubit | 1.9304 cubit | 1.9812 cubit | 2.032 cubit | 2.0828 cubit | 2.1336 cubit | 2.1844 cubit | 2.2352 cubit | 2.286 cubit | 2.3368 cubit | 2.3876 cubit | 2.4384 cubit | 2.4892 cubit | 2.54 cubit | 2.5908 cubit | 2.6416 cubit | 2.6924 cubit | 2.7432 cubit | 2.794 cubit | 2.8448 cubit | 2.8956 cubit | 2.9464 cubit | 2.9972 cubit | 3.048 cubit | 3.0988 cubit | 3.1496 cubit | 3.2004 cubit | 3.2512 cubit | 3.302 cubit | 3.3528 cubit | 3.4036 cubit | 3.4544 cubit | 3.5052 cubit | 3.556 cubit | 3.6068 cubit | 3.6576 cubit | 3.7084 cubit | 3.7592 cubit | 3.81 cubit | 3.8608 cubit | 3.9116 cubit | 3.9624 cubit | 4.0132 cubit | 4.064 cubit | 4.1148 cubit | 4.1656 cubit | 4.2164 cubit | 4.2672 cubit | 4.318 cubit | 4.3688 cubit | 4.4196 cubit | 4.4704 cubit | 4.5212 cubit | 4.572 cubit | 4.6228 cubit | 4.6736 cubit | 4.7244 cubit | 4.7752 cubit | 4.826 cubit | 4.8768 cubit | 4.9276 cubit | 4.9784 cubit | 5.0292 cubit | 5.08 cubit |
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 | cubit | inches | cubit |
---|---|---|---|
1 | ≈ 0.0508 | 4 | ≈ 0.2032 |
1.5 | ≈ 0.0762 | 4.5 | ≈ 0.2286 |
2 | ≈ 0.1016 | 5 | ≈ 0.254 |
2.5 | ≈ 0.127 | 5.5 | ≈ 0.2794 |
3 | ≈ 0.1524 | 6 | ≈ 0.3048 |
The cubit is an ancient unit based on the forearm length from the tip of the middle finger to the bottom of the elbow. Cubits of various lengths were employed in many parts of the world in antiquity, during the Middle Ages and as recently as Early Modern Times. The term is still used in hedge laying, the length of the forearm being frequently used to determine the interval between stakes placed within the hedge.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
cubit | ≡ Distance from fingers to elbow ≈ 18 in | ≈ 0.5 m | Other (Length) |
cubit | inches | cubit | inches |
---|---|---|---|
1 | ≈ 19.685039370079 | 4 | ≈ 78.740157480315 |
1.5 | ≈ 29.527559055118 | 4.5 | ≈ 88.582677165354 |
2 | ≈ 39.370078740157 | 5 | ≈ 98.425196850394 |
2.5 | ≈ 49.212598425197 | 5.5 | ≈ 108.26771653543 |
3 | ≈ 59.055118110236 | 6 | ≈ 118.11023622047 |
inches | cubit |
---|---|
1 | ≈ 0.0508 |
19.6850394 | ≈ 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 …) |