| cubit | 1 cubit | 2 cubit | 3 cubit | 4 cubit | 5 cubit | 6 cubit | 7 cubit | 8 cubit | 9 cubit | 10 cubit | 11 cubit | 12 cubit | 13 cubit | 14 cubit | 15 cubit | 16 cubit | 17 cubit | 18 cubit | 19 cubit | 20 cubit | 21 cubit | 22 cubit | 23 cubit | 24 cubit | 25 cubit | 26 cubit | 27 cubit | 28 cubit | 29 cubit | 30 cubit | 31 cubit | 32 cubit | 33 cubit | 34 cubit | 35 cubit | 36 cubit | 37 cubit | 38 cubit | 39 cubit | 40 cubit | 41 cubit | 42 cubit | 43 cubit | 44 cubit | 45 cubit | 46 cubit | 47 cubit | 48 cubit | 49 cubit | 50 cubit | 51 cubit | 52 cubit | 53 cubit | 54 cubit | 55 cubit | 56 cubit | 57 cubit | 58 cubit | 59 cubit | 60 cubit | 61 cubit | 62 cubit | 63 cubit | 64 cubit | 65 cubit | 66 cubit | 67 cubit | 68 cubit | 69 cubit | 70 cubit | 71 cubit | 72 cubit | 73 cubit | 74 cubit | 75 cubit | 76 cubit | 77 cubit | 78 cubit | 79 cubit | 80 cubit | 81 cubit | 82 cubit | 83 cubit | 84 cubit | 85 cubit | 86 cubit | 87 cubit | 88 cubit | 89 cubit | 90 cubit | 91 cubit | 92 cubit | 93 cubit | 94 cubit | 95 cubit | 96 cubit | 97 cubit | 98 cubit | 99 cubit | 100 cubit |
| metric inch | 1 250 in (metric) | 2 500 in (metric) | 3 750 in (metric) | 5 000 in (metric) | 6 250 in (metric) | 7 500 in (metric) | 8 750 in (metric) | 10 000 in (metric) | 11 250 in (metric) | 12 500 in (metric) | 13 750 in (metric) | 15 000 in (metric) | 16 250 in (metric) | 17 500 in (metric) | 18 750 in (metric) | 20 000 in (metric) | 21 250 in (metric) | 22 500 in (metric) | 23 750 in (metric) | 25 000 in (metric) | 26 250 in (metric) | 27 500 in (metric) | 28 750 in (metric) | 30 000 in (metric) | 31 250 in (metric) | 32 500 in (metric) | 33 750 in (metric) | 35 000 in (metric) | 36 250 in (metric) | 37 500 in (metric) | 38 750 in (metric) | 40 000 in (metric) | 41 250 in (metric) | 42 500 in (metric) | 43 750 in (metric) | 45 000 in (metric) | 46 250 in (metric) | 47 500 in (metric) | 48 750 in (metric) | 50 000 in (metric) | 51 250 in (metric) | 52 500 in (metric) | 53 750 in (metric) | 55 000 in (metric) | 56 250 in (metric) | 57 500 in (metric) | 58 750 in (metric) | 60 000 in (metric) | 61 250 in (metric) | 62 500 in (metric) | 63 750 in (metric) | 65 000 in (metric) | 66 250 in (metric) | 67 500 in (metric) | 68 750 in (metric) | 70 000 in (metric) | 71 250 in (metric) | 72 500 in (metric) | 73 750 in (metric) | 75 000 in (metric) | 76 250 in (metric) | 77 500 in (metric) | 78 750 in (metric) | 80 000 in (metric) | 81 250 in (metric) | 82 500 in (metric) | 83 750 in (metric) | 85 000 in (metric) | 86 250 in (metric) | 87 500 in (metric) | 88 750 in (metric) | 90 000 in (metric) | 91 250 in (metric) | 92 500 in (metric) | 93 750 in (metric) | 95 000 in (metric) | 96 250 in (metric) | 97 500 in (metric) | 98 750 in (metric) | 100 000 in (metric) | 101 250 in (metric) | 102 500 in (metric) | 103 750 in (metric) | 105 000 in (metric) | 106 250 in (metric) | 107 500 in (metric) | 108 750 in (metric) | 110 000 in (metric) | 111 250 in (metric) | 112 500 in (metric) | 113 750 in (metric) | 115 000 in (metric) | 116 250 in (metric) | 117 500 in (metric) | 118 750 in (metric) | 120 000 in (metric) | 121 250 in (metric) | 122 500 in (metric) | 123 750 in (metric) | 125 000 in (metric) |
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 | metric inches | cubit | metric inches |
|---|---|---|---|
| 1 | ≈ 1250 | 4 | ≈ 5000 |
| 1.5 | ≈ 1875 | 4.5 | ≈ 5625 |
| 2 | ≈ 2500 | 5 | ≈ 6250 |
| 2.5 | ≈ 3125 | 5.5 | ≈ 6875 |
| 3 | ≈ 3750 | 6 | ≈ 7500 |
A metric inch is a nickname for a preferred 1⁄4 subdivision of an ISO 2848 basic module, or 1⁄12 of a metric foot measuring 25 millimetres (0.984 in). A metric inch is 0.4 millimetres (0.016 in) shorter than an inch.
The term was similarly used to refer to the historical Soviet Bloc practice of spacing integrated circuit pins at 1⁄10 of a 25 mm "metric inch" length, instead of the western practice of 1⁄10 of an imperial inch.
| Name of unit | Symbol | Definition | Relation to SI units | Unit System |
|---|---|---|---|---|
| metric inch | in (metric) | = 0.016 in | = 0.0004 m | Metric system SI |
| metric inches | cubit | metric inches | cubit |
|---|---|---|---|
| 1 | ≈ 0.0008 | 4 | ≈ 0.0032 |
| 1.5 | ≈ 0.0012 | 4.5 | ≈ 0.0036 |
| 2 | ≈ 0.0016 | 5 | ≈ 0.004 |
| 2.5 | ≈ 0.002 | 5.5 | ≈ 0.0044 |
| 3 | ≈ 0.0024 | 6 | ≈ 0.0048 |
| cubit | metric inches |
|---|---|
| 1 | ≈ 1 250 |
| 0.0008 | ≈ 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 …) |