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 |
point (PostScript) | 5,185.1431812 pt | 10,370.2863623 pt | 15,555.4295435 pt | 20,740.5727247 pt | 25,925.7159059 pt | 31,110.8590870 pt | 36,296.0022682 pt | 41,481.1454494 pt | 46,666.2886306 pt | 51,851.4318117 pt | 57,036.5749929 pt | 62,221.7181741 pt | 67,406.8613553 pt | 72,592.0045364 pt | 77,777.1477176 pt | 82,962.2908988 pt | 88,147.4340800 pt | 93,332.5772611 pt | 98,517.7204423 pt | 103,702.8636235 pt | 108,888.0068047 pt | 114,073.1499858 pt | 119,258.293167 pt | 124,443.4363482 pt | 129,628.5795294 pt | 134,813.7227105 pt | 139,998.8658917 pt | 145,184.0090729 pt | 150,369.1522540 pt | 155,554.2954352 pt | 160,739.4386164 pt | 165,924.5817976 pt | 171,109.7249787 pt | 176,294.8681599 pt | 181,480.0113411 pt | 186,665.1545223 pt | 191,850.2977034 pt | 197,035.4408846 pt | 202,220.5840658 pt | 207,405.7272470 pt | 212,590.8704281 pt | 217,776.0136093 pt | 222,961.1567905 pt | 228,146.2999717 pt | 233,331.4431528 pt | 238,516.5863340 pt | 243,701.7295152 pt | 248,886.8726963 pt | 254,072.0158775 pt | 259,257.1590587 pt | 264,442.3022399 pt | 269,627.4454210 pt | 274,812.5886022 pt | 279,997.7317834 pt | 285,182.8749646 pt | 290,368.0181457 pt | 295,553.1613269 pt | 300,738.3045081 pt | 305,923.4476893 pt | 311,108.5908704 pt | 316,293.7340516 pt | 321,478.8772328 pt | 326,664.0204140 pt | 331,849.1635951 pt | 337,034.3067763 pt | 342,219.4499575 pt | 347,404.5931386 pt | 352,589.7363198 pt | 357,774.8795010 pt | 362,960.0226822 pt | 368,145.1658633 pt | 373,330.3090445 pt | 378,515.4522257 pt | 383,700.5954069 pt | 388,885.7385880 pt | 394,070.8817692 pt | 399,256.0249504 pt | 404,441.1681316 pt | 409,626.3113127 pt | 414,811.4544939 pt | 419,996.5976751 pt | 425,181.7408563 pt | 430,366.8840374 pt | 435,552.0272186 pt | 440,737.1703998 pt | 445,922.3135810 pt | 451,107.4567621 pt | 456,292.5999433 pt | 461,477.7431245 pt | 466,662.8863056 pt | 471,848.0294868 pt | 477,033.1726680 pt | 482,218.3158492 pt | 487,403.4590303 pt | 492,588.6022115 pt | 497,773.7453927 pt | 502,958.8885739 pt | 508,144.0317550 pt | 513,329.1749362 pt | 518,514.3181174 pt |
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 | points (PostScript) | fathoms | points (PostScript) |
---|---|---|---|
1 | = 5185.1431811738 | 4 | = 20740.572724695 |
1.5 | = 7777.7147717607 | 4.5 | = 23333.144315282 |
2 | = 10370.286362348 | 5 | = 25925.715905869 |
2.5 | = 12962.857952935 | 5.5 | = 28518.287496456 |
3 | = 15555.429543521 | 6 | = 31110.859087043 |
= 0.0003527 m
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
point (PostScript) | pt | ≡ 1⁄72 in | = 0.0003527 m | Other (Length) |
points (PostScript) | fathoms | points (PostScript) | fathoms |
---|---|---|---|
1 | = 0.00019285870516185 | 4 | = 0.00077143482064742 |
1.5 | = 0.00028928805774278 | 4.5 | = 0.00086786417322835 |
2 | = 0.00038571741032371 | 5 | = 0.00096429352580927 |
2.5 | = 0.00048214676290464 | 5.5 | = 0.0010607228783902 |
3 | = 0.00057857611548556 | 6 | = 0.0011571522309711 |
fathoms | points (PostScript) |
---|---|
1 | = 5,185.1431812 |
0.0001929 | = 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 …) |