foot | 1 ft | 2 ft | 3 ft | 4 ft | 5 ft | 6 ft | 7 ft | 8 ft | 9 ft | 10 ft | 11 ft | 12 ft | 13 ft | 14 ft | 15 ft | 16 ft | 17 ft | 18 ft | 19 ft | 20 ft | 21 ft | 22 ft | 23 ft | 24 ft | 25 ft | 26 ft | 27 ft | 28 ft | 29 ft | 30 ft | 31 ft | 32 ft | 33 ft | 34 ft | 35 ft | 36 ft | 37 ft | 38 ft | 39 ft | 40 ft | 41 ft | 42 ft | 43 ft | 44 ft | 45 ft | 46 ft | 47 ft | 48 ft | 49 ft | 50 ft | 51 ft | 52 ft | 53 ft | 54 ft | 55 ft | 56 ft | 57 ft | 58 ft | 59 ft | 60 ft | 61 ft | 62 ft | 63 ft | 64 ft | 65 ft | 66 ft | 67 ft | 68 ft | 69 ft | 70 ft | 71 ft | 72 ft | 73 ft | 74 ft | 75 ft | 76 ft | 77 ft | 78 ft | 79 ft | 80 ft | 81 ft | 82 ft | 83 ft | 84 ft | 85 ft | 86 ft | 87 ft | 88 ft | 89 ft | 90 ft | 91 ft | 92 ft | 93 ft | 94 ft | 95 ft | 96 ft | 97 ft | 98 ft | 99 ft | 100 ft |
cubit | 0.6096 cubit | 1.2192 cubit | 1.8288 cubit | 2.4384 cubit | 3.048 cubit | 3.6576 cubit | 4.2672 cubit | 4.8768 cubit | 5.4864 cubit | 6.096 cubit | 6.7056 cubit | 7.3152 cubit | 7.9248 cubit | 8.5344 cubit | 9.144 cubit | 9.7536 cubit | 10.3632 cubit | 10.9728 cubit | 11.5824 cubit | 12.192 cubit | 12.8016 cubit | 13.4112 cubit | 14.0208 cubit | 14.6304 cubit | 15.24 cubit | 15.8496 cubit | 16.4592 cubit | 17.0688 cubit | 17.6784 cubit | 18.288 cubit | 18.8976 cubit | 19.5072 cubit | 20.1168 cubit | 20.7264 cubit | 21.336 cubit | 21.9456 cubit | 22.5552 cubit | 23.1648 cubit | 23.7744 cubit | 24.384 cubit | 24.9936 cubit | 25.6032 cubit | 26.2128 cubit | 26.8224 cubit | 27.432 cubit | 28.0416 cubit | 28.6512 cubit | 29.2608 cubit | 29.8704 cubit | 30.48 cubit | 31.0896 cubit | 31.6992 cubit | 32.3088 cubit | 32.9184 cubit | 33.528 cubit | 34.1376 cubit | 34.7472 cubit | 35.3568 cubit | 35.9664 cubit | 36.576 cubit | 37.1856 cubit | 37.7952 cubit | 38.4048 cubit | 39.0144 cubit | 39.624 cubit | 40.2336 cubit | 40.8432 cubit | 41.4528 cubit | 42.0624 cubit | 42.672 cubit | 43.2816 cubit | 43.8912 cubit | 44.5008 cubit | 45.1104 cubit | 45.72 cubit | 46.3296 cubit | 46.9392 cubit | 47.5488 cubit | 48.1584 cubit | 48.768 cubit | 49.3776 cubit | 49.9872 cubit | 50.5968 cubit | 51.2064 cubit | 51.816 cubit | 52.4256 cubit | 53.0352 cubit | 53.6448 cubit | 54.2544 cubit | 54.864 cubit | 55.4736 cubit | 56.0832 cubit | 56.6928 cubit | 57.3024 cubit | 57.912 cubit | 58.5216 cubit | 59.1312 cubit | 59.7408 cubit | 60.3504 cubit | 60.96 cubit |
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 | cubit | feet | cubit |
---|---|---|---|
1 | ≈ 0.6096 | 4 | ≈ 2.4384 |
1.5 | ≈ 0.9144 | 4.5 | ≈ 2.7432 |
2 | ≈ 1.2192 | 5 | ≈ 3.048 |
2.5 | ≈ 1.524 | 5.5 | ≈ 3.3528 |
3 | ≈ 1.8288 | 6 | ≈ 3.6576 |
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 | feet | cubit | feet |
---|---|---|---|
1 | ≈ 1.6404199475066 | 4 | ≈ 6.5616797900262 |
1.5 | ≈ 2.4606299212598 | 4.5 | ≈ 7.3818897637795 |
2 | ≈ 3.2808398950131 | 5 | ≈ 8.2020997375328 |
2.5 | ≈ 4.1010498687664 | 5.5 | ≈ 9.0223097112861 |
3 | ≈ 4.9212598425197 | 6 | ≈ 9.8425196850394 |
feet | cubit |
---|---|
1 | ≈ 0.6096 |
1.6404199 | ≈ 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 …) |