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 |
league | 0.0003788 lea | 0.0007576 lea | 0.0011364 lea | 0.0015152 lea | 0.0018939 lea | 0.0022727 lea | 0.0026515 lea | 0.0030303 lea | 0.0034091 lea | 0.0037879 lea | 0.0041667 lea | 0.0045455 lea | 0.0049242 lea | 0.0053030 lea | 0.0056818 lea | 0.0060606 lea | 0.0064394 lea | 0.0068182 lea | 0.0071970 lea | 0.0075758 lea | 0.0079545 lea | 0.0083333 lea | 0.0087121 lea | 0.0090909 lea | 0.0094697 lea | 0.0098485 lea | 0.0102273 lea | 0.0106061 lea | 0.0109848 lea | 0.0113636 lea | 0.0117424 lea | 0.0121212 lea | 0.0125 lea | 0.0128788 lea | 0.0132576 lea | 0.0136364 lea | 0.0140152 lea | 0.0143939 lea | 0.0147727 lea | 0.0151515 lea | 0.0155303 lea | 0.0159091 lea | 0.0162879 lea | 0.0166667 lea | 0.0170455 lea | 0.0174242 lea | 0.0178030 lea | 0.0181818 lea | 0.0185606 lea | 0.0189394 lea | 0.0193182 lea | 0.0196970 lea | 0.0200758 lea | 0.0204545 lea | 0.0208333 lea | 0.0212121 lea | 0.0215909 lea | 0.0219697 lea | 0.0223485 lea | 0.0227273 lea | 0.0231061 lea | 0.0234848 lea | 0.0238636 lea | 0.0242424 lea | 0.0246212 lea | 0.025 lea | 0.0253788 lea | 0.0257576 lea | 0.0261364 lea | 0.0265152 lea | 0.0268939 lea | 0.0272727 lea | 0.0276515 lea | 0.0280303 lea | 0.0284091 lea | 0.0287879 lea | 0.0291667 lea | 0.0295455 lea | 0.0299242 lea | 0.0303030 lea | 0.0306818 lea | 0.0310606 lea | 0.0314394 lea | 0.0318182 lea | 0.0321970 lea | 0.0325758 lea | 0.0329545 lea | 0.0333333 lea | 0.0337121 lea | 0.0340909 lea | 0.0344697 lea | 0.0348485 lea | 0.0352273 lea | 0.0356061 lea | 0.0359848 lea | 0.0363636 lea | 0.0367424 lea | 0.0371212 lea | 0.0375 lea | 0.0378788 lea |
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 | leagues | fathoms | leagues |
---|---|---|---|
1 | = 0.00037878787878788 | 4 | = 0.0015151515151515 |
1.5 | = 0.00056818181818182 | 4.5 | = 0.0017045454545455 |
2 | = 0.00075757575757576 | 5 | = 0.0018939393939394 |
2.5 | = 0.0009469696969697 | 5.5 | = 0.0020833333333333 |
3 | = 0.0011363636363636 | 6 | = 0.0022727272727273 |
A league is a unit of length (or, in various regions, area). It was common in Europe and Latin America, but is no longer an official unit in any nation. The word originally meant the distance a person could walk in an hour. Since the Middle Ages, many values have been specified in several countries.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
league | lea | ≡ 3 miles ≡ 15840 feet | ≡4828.032 m | Imperial/US |
leagues | fathoms | leagues | fathoms |
---|---|---|---|
1 | = 2640 | 4 | = 10560 |
1.5 | = 3960 | 4.5 | = 11880 |
2 | = 5280 | 5 | = 13200 |
2.5 | = 6600 | 5.5 | = 14520 |
3 | = 7920 | 6 | = 15840 |
fathoms | leagues |
---|---|
1 | = 0.0003788 |
2 640 | = 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 …) |