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 |
thou | 72 000 th | 144 000 th | 216 000 th | 288 000 th | 360 000 th | 432 000 th | 504 000 th | 576 000 th | 648 000 th | 720 000 th | 792 000 th | 864 000 th | 936 000 th | 1 008 000 th | 1 080 000 th | 1 152 000 th | 1 224 000 th | 1 296 000 th | 1 368 000 th | 1 440 000 th | 1 512 000 th | 1 584 000 th | 1 656 000 th | 1 728 000 th | 1 800 000 th | 1 872 000 th | 1 944 000 th | 2 016 000 th | 2 088 000 th | 2 160 000 th | 2 232 000 th | 2 304 000 th | 2 376 000 th | 2 448 000 th | 2 520 000 th | 2 592 000 th | 2 664 000 th | 2 736 000 th | 2 808 000 th | 2 880 000 th | 2 952 000 th | 3 024 000 th | 3 096 000 th | 3 168 000 th | 3 240 000 th | 3 312 000 th | 3 384 000 th | 3 456 000 th | 3 528 000 th | 3 600 000 th | 3 672 000 th | 3 744 000 th | 3 816 000 th | 3 888 000 th | 3 960 000 th | 4 032 000 th | 4 104 000 th | 4 176 000 th | 4 248 000 th | 4 320 000 th | 4 392 000 th | 4 464 000 th | 4 536 000 th | 4 608 000 th | 4 680 000 th | 4 752 000 th | 4 824 000 th | 4 896 000 th | 4 968 000 th | 5 040 000 th | 5 112 000 th | 5 184 000 th | 5 256 000 th | 5 328 000 th | 5 400 000 th | 5 472 000 th | 5 544 000 th | 5 616 000 th | 5 688 000 th | 5 760 000 th | 5 832 000 th | 5 904 000 th | 5 976 000 th | 6 048 000 th | 6 120 000 th | 6 192 000 th | 6 264 000 th | 6 336 000 th | 6 408 000 th | 6 480 000 th | 6 552 000 th | 6 624 000 th | 6 696 000 th | 6 768 000 th | 6 840 000 th | 6 912 000 th | 6 984 000 th | 7 056 000 th | 7 128 000 th | 7 200 000 th |
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 | thous | fathoms | thous |
---|---|---|---|
1 | = 72000 | 4 | = 288000 |
1.5 | = 108000 | 4.5 | = 324000 |
2 | = 144000 | 5 | = 360000 |
2.5 | = 180000 | 5.5 | = 396000 |
3 | = 216000 | 6 | = 432000 |
A thousandth of an inch is a derived unit of length in an inch-based system of units. Equal to 0.001 inches, it is normally referred to as a thou /ˈθaʊ/, a thousandth, or (particularly in the United States) a mil.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
thou | th | ≡ 1×10−3 in | ≡ 2.54×10−5 m | Imperial/US |
thous | fathoms | thous | fathoms |
---|---|---|---|
1 | = 1.3888888888889E-5 | 4 | = 5.5555555555556E-5 |
1.5 | = 2.0833333333333E-5 | 4.5 | = 6.25E-5 |
2 | = 2.7777777777778E-5 | 5 | = 6.9444444444444E-5 |
2.5 | = 3.4722222222222E-5 | 5.5 | = 7.6388888888889E-5 |
3 | = 4.1666666666667E-5 | 6 | = 8.3333333333333E-5 |
fathoms | thous |
---|---|
1 | = 72 000 |
1.3888888888889 × 10-5 | = 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 …) |