| ell | 1 ell | 2 ell | 3 ell | 4 ell | 5 ell | 6 ell | 7 ell | 8 ell | 9 ell | 10 ell | 11 ell | 12 ell | 13 ell | 14 ell | 15 ell | 16 ell | 17 ell | 18 ell | 19 ell | 20 ell | 21 ell | 22 ell | 23 ell | 24 ell | 25 ell | 26 ell | 27 ell | 28 ell | 29 ell | 30 ell | 31 ell | 32 ell | 33 ell | 34 ell | 35 ell | 36 ell | 37 ell | 38 ell | 39 ell | 40 ell | 41 ell | 42 ell | 43 ell | 44 ell | 45 ell | 46 ell | 47 ell | 48 ell | 49 ell | 50 ell | 51 ell | 52 ell | 53 ell | 54 ell | 55 ell | 56 ell | 57 ell | 58 ell | 59 ell | 60 ell | 61 ell | 62 ell | 63 ell | 64 ell | 65 ell | 66 ell | 67 ell | 68 ell | 69 ell | 70 ell | 71 ell | 72 ell | 73 ell | 74 ell | 75 ell | 76 ell | 77 ell | 78 ell | 79 ell | 80 ell | 81 ell | 82 ell | 83 ell | 84 ell | 85 ell | 86 ell | 87 ell | 88 ell | 89 ell | 90 ell | 91 ell | 92 ell | 93 ell | 94 ell | 95 ell | 96 ell | 97 ell | 98 ell | 99 ell | 100 ell |
| fathom | 0.625 ftm | 1.25 ftm | 1.875 ftm | 2.5 ftm | 3.125 ftm | 3.75 ftm | 4.375 ftm | 5 ftm | 5.625 ftm | 6.25 ftm | 6.875 ftm | 7.5 ftm | 8.125 ftm | 8.75 ftm | 9.375 ftm | 10 ftm | 10.625 ftm | 11.25 ftm | 11.875 ftm | 12.5 ftm | 13.125 ftm | 13.75 ftm | 14.375 ftm | 15 ftm | 15.625 ftm | 16.25 ftm | 16.875 ftm | 17.5 ftm | 18.125 ftm | 18.75 ftm | 19.375 ftm | 20 ftm | 20.625 ftm | 21.25 ftm | 21.875 ftm | 22.5 ftm | 23.125 ftm | 23.75 ftm | 24.375 ftm | 25 ftm | 25.625 ftm | 26.25 ftm | 26.875 ftm | 27.5 ftm | 28.125 ftm | 28.75 ftm | 29.375 ftm | 30 ftm | 30.625 ftm | 31.25 ftm | 31.875 ftm | 32.5 ftm | 33.125 ftm | 33.75 ftm | 34.375 ftm | 35 ftm | 35.625 ftm | 36.25 ftm | 36.875 ftm | 37.5 ftm | 38.125 ftm | 38.75 ftm | 39.375 ftm | 40 ftm | 40.625 ftm | 41.25 ftm | 41.875 ftm | 42.5 ftm | 43.125 ftm | 43.75 ftm | 44.375 ftm | 45 ftm | 45.625 ftm | 46.25 ftm | 46.875 ftm | 47.5 ftm | 48.125 ftm | 48.75 ftm | 49.375 ftm | 50 ftm | 50.625 ftm | 51.25 ftm | 51.875 ftm | 52.5 ftm | 53.125 ftm | 53.75 ftm | 54.375 ftm | 55 ftm | 55.625 ftm | 56.25 ftm | 56.875 ftm | 57.5 ftm | 58.125 ftm | 58.75 ftm | 59.375 ftm | 60 ftm | 60.625 ftm | 61.25 ftm | 61.875 ftm | 62.5 ftm |
An ell (from Proto-Germanic *alinō, cognate with Latin ulna) is a unit of measurement, originally a cubit, i.e., approximating the length of a man's arm from the elbow ("elbow" means the bend or bow of the ell or arm) to the tip of the middle finger, or about 18 inches (457 mm); in later usage, any of several longer units.
| 1 ell = 0.625 fathoms | 4 ell = 2.5 fathoms |
| 1.5 ell = 0.9375 fathoms | 4.5 ell = 2.8125 fathoms |
| 2 ell = 1.25 fathoms | 5 ell = 3.125 fathoms |
| 2.5 ell = 1.5625 fathoms | 5.5 ell = 3.4375 fathoms |
| 3 ell = 1.875 fathoms | 6 ell = 3.75 fathoms |
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.
| 1 fathoms = 1.6 ell | 4 fathoms = 6.4 ell |
| 1.5 fathoms = 2.4 ell | 4.5 fathoms = 7.2 ell |
| 2 fathoms = 3.2 ell | 5 fathoms = 8 ell |
| 2.5 fathoms = 4 ell | 5.5 fathoms = 8.8 ell |
| 3 fathoms = 4.8 ell | 6 fathoms = 9.6 ell |
| 1 ell = 0.625 fathoms |
| 1 fathoms = 1.6 ell |