line | 1 ln | 2 ln | 3 ln | 4 ln | 5 ln | 6 ln | 7 ln | 8 ln | 9 ln | 10 ln | 11 ln | 12 ln | 13 ln | 14 ln | 15 ln | 16 ln | 17 ln | 18 ln | 19 ln | 20 ln | 21 ln | 22 ln | 23 ln | 24 ln | 25 ln | 26 ln | 27 ln | 28 ln | 29 ln | 30 ln | 31 ln | 32 ln | 33 ln | 34 ln | 35 ln | 36 ln | 37 ln | 38 ln | 39 ln | 40 ln | 41 ln | 42 ln | 43 ln | 44 ln | 45 ln | 46 ln | 47 ln | 48 ln | 49 ln | 50 ln | 51 ln | 52 ln | 53 ln | 54 ln | 55 ln | 56 ln | 57 ln | 58 ln | 59 ln | 60 ln | 61 ln | 62 ln | 63 ln | 64 ln | 65 ln | 66 ln | 67 ln | 68 ln | 69 ln | 70 ln | 71 ln | 72 ln | 73 ln | 74 ln | 75 ln | 76 ln | 77 ln | 78 ln | 79 ln | 80 ln | 81 ln | 82 ln | 83 ln | 84 ln | 85 ln | 86 ln | 87 ln | 88 ln | 89 ln | 90 ln | 91 ln | 92 ln | 93 ln | 94 ln | 95 ln | 96 ln | 97 ln | 98 ln | 99 ln | 100 ln |
fathom | 0.0011574 ftm | 0.0023148 ftm | 0.0034722 ftm | 0.0046296 ftm | 0.0057870 ftm | 0.0069444 ftm | 0.0081019 ftm | 0.0092593 ftm | 0.0104167 ftm | 0.0115741 ftm | 0.0127315 ftm | 0.0138889 ftm | 0.0150463 ftm | 0.0162037 ftm | 0.0173611 ftm | 0.0185185 ftm | 0.0196759 ftm | 0.0208333 ftm | 0.0219907 ftm | 0.0231481 ftm | 0.0243056 ftm | 0.0254630 ftm | 0.0266204 ftm | 0.0277778 ftm | 0.0289352 ftm | 0.0300926 ftm | 0.03125 ftm | 0.0324074 ftm | 0.0335648 ftm | 0.0347222 ftm | 0.0358796 ftm | 0.0370370 ftm | 0.0381944 ftm | 0.0393519 ftm | 0.0405093 ftm | 0.0416667 ftm | 0.0428241 ftm | 0.0439815 ftm | 0.0451389 ftm | 0.0462963 ftm | 0.0474537 ftm | 0.0486111 ftm | 0.0497685 ftm | 0.0509259 ftm | 0.0520833 ftm | 0.0532407 ftm | 0.0543981 ftm | 0.0555556 ftm | 0.0567130 ftm | 0.0578704 ftm | 0.0590278 ftm | 0.0601852 ftm | 0.0613426 ftm | 0.0625 ftm | 0.0636574 ftm | 0.0648148 ftm | 0.0659722 ftm | 0.0671296 ftm | 0.0682870 ftm | 0.0694444 ftm | 0.0706019 ftm | 0.0717593 ftm | 0.0729167 ftm | 0.0740741 ftm | 0.0752315 ftm | 0.0763889 ftm | 0.0775463 ftm | 0.0787037 ftm | 0.0798611 ftm | 0.0810185 ftm | 0.0821759 ftm | 0.0833333 ftm | 0.0844907 ftm | 0.0856481 ftm | 0.0868056 ftm | 0.0879630 ftm | 0.0891204 ftm | 0.0902778 ftm | 0.0914352 ftm | 0.0925926 ftm | 0.09375 ftm | 0.0949074 ftm | 0.0960648 ftm | 0.0972222 ftm | 0.0983796 ftm | 0.0995370 ftm | 0.1006944 ftm | 0.1018519 ftm | 0.1030093 ftm | 0.1041667 ftm | 0.1053241 ftm | 0.1064815 ftm | 0.1076389 ftm | 0.1087963 ftm | 0.1099537 ftm | 0.1111111 ftm | 0.1122685 ftm | 0.1134259 ftm | 0.1145833 ftm | 0.1157407 ftm |
The line (abbreviated L or l) was a small English unit of length, variously reckoned as 1⁄10, 1⁄12, 1⁄16, or 1⁄40 of an inch. It was not included among the units authorized as the British Imperial system in 1824.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
line | ln | ≡ 1⁄12 in | = 0.002116 m | Imperial/US |
lines | fathoms | lines | fathoms |
---|---|---|---|
1 | = 0.0011574074074074 | 4 | = 0.0046296296296296 |
1.5 | = 0.0017361111111111 | 4.5 | = 0.0052083333333333 |
2 | = 0.0023148148148148 | 5 | = 0.005787037037037 |
2.5 | = 0.0028935185185185 | 5.5 | = 0.0063657407407407 |
3 | = 0.0034722222222222 | 6 | = 0.0069444444444444 |
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 | lines | fathoms | lines |
---|---|---|---|
1 | = 864 | 4 | = 3456 |
1.5 | = 1296 | 4.5 | = 3888 |
2 | = 1728 | 5 | = 4320 |
2.5 | = 2160 | 5.5 | = 4752 |
3 | = 2592 | 6 | = 5184 |
lines | fathoms |
---|---|
1 | = 0.0011574 |
864 | = 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 …) |