fathom | 1 ftm | 2 ftm | 3 ftm | 4 ftm | 5 ftm | 6 ftm | 7 ftm | 8 ftm | 9 ftm | 10 ftm | 11 ftm | 12 ftm | 13 ftm | 14 ftm | 15 ftm | 16 ftm | 17 ftm | 18 ftm | 19 ftm | 20 ftm | 21 ftm | 22 ftm | 23 ftm | 24 ftm | 25 ftm | 26 ftm | 27 ftm | 28 ftm | 29 ftm | 30 ftm | 31 ftm | 32 ftm | 33 ftm | 34 ftm | 35 ftm | 36 ftm | 37 ftm | 38 ftm | 39 ftm | 40 ftm | 41 ftm | 42 ftm | 43 ftm | 44 ftm | 45 ftm | 46 ftm | 47 ftm | 48 ftm | 49 ftm | 50 ftm | 51 ftm | 52 ftm | 53 ftm | 54 ftm | 55 ftm | 56 ftm | 57 ftm | 58 ftm | 59 ftm | 60 ftm | 61 ftm | 62 ftm | 63 ftm | 64 ftm | 65 ftm | 66 ftm | 67 ftm | 68 ftm | 69 ftm | 70 ftm | 71 ftm | 72 ftm | 73 ftm | 74 ftm | 75 ftm | 76 ftm | 77 ftm | 78 ftm | 79 ftm | 80 ftm | 81 ftm | 82 ftm | 83 ftm | 84 ftm | 85 ftm | 86 ftm | 87 ftm | 88 ftm | 89 ftm | 90 ftm | 91 ftm | 92 ftm | 93 ftm | 94 ftm | 95 ftm | 96 ftm | 97 ftm | 98 ftm | 99 ftm | 100 ftm |
cable length (International) | 0.0098747 cable length (International) | 0.0197495 cable length (International) | 0.0296242 cable length (International) | 0.0394989 cable length (International) | 0.0493737 cable length (International) | 0.0592484 cable length (International) | 0.0691231 cable length (International) | 0.0789978 cable length (International) | 0.0888726 cable length (International) | 0.0987473 cable length (International) | 0.1086220 cable length (International) | 0.1184968 cable length (International) | 0.1283715 cable length (International) | 0.1382462 cable length (International) | 0.1481210 cable length (International) | 0.1579957 cable length (International) | 0.1678704 cable length (International) | 0.1777451 cable length (International) | 0.1876199 cable length (International) | 0.1974946 cable length (International) | 0.2073693 cable length (International) | 0.2172441 cable length (International) | 0.2271188 cable length (International) | 0.2369935 cable length (International) | 0.2468683 cable length (International) | 0.2567430 cable length (International) | 0.2666177 cable length (International) | 0.2764924 cable length (International) | 0.2863672 cable length (International) | 0.2962419 cable length (International) | 0.3061166 cable length (International) | 0.3159914 cable length (International) | 0.3258661 cable length (International) | 0.3357408 cable length (International) | 0.3456156 cable length (International) | 0.3554903 cable length (International) | 0.3653650 cable length (International) | 0.3752397 cable length (International) | 0.3851145 cable length (International) | 0.3949892 cable length (International) | 0.4048639 cable length (International) | 0.4147387 cable length (International) | 0.4246134 cable length (International) | 0.4344881 cable length (International) | 0.4443629 cable length (International) | 0.4542376 cable length (International) | 0.4641123 cable length (International) | 0.4739870 cable length (International) | 0.4838618 cable length (International) | 0.4937365 cable length (International) | 0.5036112 cable length (International) | 0.5134860 cable length (International) | 0.5233607 cable length (International) | 0.5332354 cable length (International) | 0.5431102 cable length (International) | 0.5529849 cable length (International) | 0.5628596 cable length (International) | 0.5727343 cable length (International) | 0.5826091 cable length (International) | 0.5924838 cable length (International) | 0.6023585 cable length (International) | 0.6122333 cable length (International) | 0.6221080 cable length (International) | 0.6319827 cable length (International) | 0.6418575 cable length (International) | 0.6517322 cable length (International) | 0.6616069 cable length (International) | 0.6714816 cable length (International) | 0.6813564 cable length (International) | 0.6912311 cable length (International) | 0.7011058 cable length (International) | 0.7109806 cable length (International) | 0.7208553 cable length (International) | 0.7307300 cable length (International) | 0.7406048 cable length (International) | 0.7504795 cable length (International) | 0.7603542 cable length (International) | 0.7702289 cable length (International) | 0.7801037 cable length (International) | 0.7899784 cable length (International) | 0.7998531 cable length (International) | 0.8097279 cable length (International) | 0.8196026 cable length (International) | 0.8294773 cable length (International) | 0.8393521 cable length (International) | 0.8492268 cable length (International) | 0.8591015 cable length (International) | 0.8689762 cable length (International) | 0.8788510 cable length (International) | 0.8887257 cable length (International) | 0.8986004 cable length (International) | 0.9084752 cable length (International) | 0.9183499 cable length (International) | 0.9282246 cable length (International) | 0.9380994 cable length (International) | 0.9479741 cable length (International) | 0.9578488 cable length (International) | 0.9677235 cable length (International) | 0.9775983 cable length (International) | 0.9874730 cable length (International) |
A fathom is a unit of length in the imperial and the U.S. customary systems equal to 6 feet (1.8288 metres), used especially for measuring the depth of water.
There are two yards (6 feet) in an imperial fathom. Originally the span of a man's outstretched arms, the size of a fathom has varied slightly depending on whether it was defined as a thousandth of an (Admiralty) nautical mile or as a multiple of the imperial yard. Formerly, the term was used for any of several units of length varying around 5–5 1⁄2 feet.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
fathom | ftm | ≡ 6 ft | = 1.8288 m | Imperial/US |
fathoms | cable length (International) | fathoms | cable length (International) |
---|---|---|---|
1 | = 0.0098747300215983 | 4 | = 0.039498920086393 |
1.5 | = 0.014812095032397 | 4.5 | = 0.044436285097192 |
2 | = 0.019749460043197 | 5 | = 0.049373650107991 |
2.5 | = 0.024686825053996 | 5.5 | = 0.054311015118791 |
3 | = 0.029624190064795 | 6 | = 0.05924838012959 |
A cable length or length of cable is a nautical unit of measure equal to one tenth of a nautical mile or approximately 100 fathoms. The unit is named after the length of a ship's anchor cable in the Age of Sail. The definition varies:
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
cable length (International) | ≡ 1⁄10 nmi | ≡ 185.2 m | Imperial/US |
cable length (International) | fathoms | cable length (International) | fathoms |
---|---|---|---|
1 | = 101.26859142607 | 4 | = 405.07436570429 |
1.5 | = 151.90288713911 | 4.5 | = 455.70866141732 |
2 | = 202.53718285214 | 5 | = 506.34295713036 |
2.5 | = 253.17147856518 | 5.5 | = 556.97725284339 |
3 | = 303.80577427822 | 6 | = 607.61154855643 |
fathoms | cable length (International) |
---|---|
1 | = 0.0098747 |
101.2685914 | = 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 …) |