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 (land) | 0.0003788 lea | 0.0007576 lea | 0.0011364 lea | 0.0015152 lea | 0.0018940 lea | 0.0022727 lea | 0.0026515 lea | 0.0030303 lea | 0.0034091 lea | 0.0037879 lea | 0.0041667 lea | 0.0045455 lea | 0.0049243 lea | 0.0053031 lea | 0.0056819 lea | 0.0060606 lea | 0.0064394 lea | 0.0068182 lea | 0.0071970 lea | 0.0075758 lea | 0.0079546 lea | 0.0083334 lea | 0.0087122 lea | 0.0090910 lea | 0.0094698 lea | 0.0098486 lea | 0.0102273 lea | 0.0106061 lea | 0.0109849 lea | 0.0113637 lea | 0.0117425 lea | 0.0121213 lea | 0.0125001 lea | 0.0128789 lea | 0.0132577 lea | 0.0136365 lea | 0.0140152 lea | 0.0143940 lea | 0.0147728 lea | 0.0151516 lea | 0.0155304 lea | 0.0159092 lea | 0.0162880 lea | 0.0166668 lea | 0.0170456 lea | 0.0174244 lea | 0.0178031 lea | 0.0181819 lea | 0.0185607 lea | 0.0189395 lea | 0.0193183 lea | 0.0196971 lea | 0.0200759 lea | 0.0204547 lea | 0.0208335 lea | 0.0212123 lea | 0.0215911 lea | 0.0219698 lea | 0.0223486 lea | 0.0227274 lea | 0.0231062 lea | 0.0234850 lea | 0.0238638 lea | 0.0242426 lea | 0.0246214 lea | 0.0250002 lea | 0.0253790 lea | 0.0257577 lea | 0.0261365 lea | 0.0265153 lea | 0.0268941 lea | 0.0272729 lea | 0.0276517 lea | 0.0280305 lea | 0.0284093 lea | 0.0287881 lea | 0.0291669 lea | 0.0295457 lea | 0.0299244 lea | 0.0303032 lea | 0.0306820 lea | 0.0310608 lea | 0.0314396 lea | 0.0318184 lea | 0.0321972 lea | 0.0325760 lea | 0.0329548 lea | 0.0333336 lea | 0.0337123 lea | 0.0340911 lea | 0.0344699 lea | 0.0348487 lea | 0.0352275 lea | 0.0356063 lea | 0.0359851 lea | 0.0363639 lea | 0.0367427 lea | 0.0371215 lea | 0.0375002 lea | 0.0378790 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 (land) | fathoms | leagues (land) |
---|---|---|---|
1 | = 0.00037879038939519 | 4 | = 0.0015151615575808 |
1.5 | = 0.00056818558409279 | 4.5 | = 0.0017045567522784 |
2 | = 0.00075758077879039 | 5 | = 0.001893951946976 |
2.5 | = 0.00094697597348799 | 5.5 | = 0.0020833471416736 |
3 | = 0.0011363711681856 | 6 | = 0.0022727423363712 |
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 (land) | lea | ≈ 1 hour walk, Currently defined in US as 3 Statute miles, but historically varied from 2 to 9 km | ≈ 4828 m | Imperial/US |
leagues (land) | fathoms | leagues (land) | fathoms |
---|---|---|---|
1 | = 2639.9825021872 | 4 | = 10559.930008749 |
1.5 | = 3959.9737532808 | 4.5 | = 11879.921259843 |
2 | = 5279.9650043745 | 5 | = 13199.912510936 |
2.5 | = 6599.9562554681 | 5.5 | = 14519.90376203 |
3 | = 7919.9475065617 | 6 | = 15839.895013123 |
fathoms | leagues (land) |
---|---|
1 | = 0.0003788 |
2,639.9825022 | = 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 …) |