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 |
twip | 103,685.2250822 twp | 207,370.4501644 twp | 311,055.6752466 twp | 414,740.9003288 twp | 518,426.1254110 twp | 622,111.3504933 twp | 725,796.5755755 twp | 829,481.8006577 twp | 933,167.0257399 twp | 1,036,852.2508221 twp | 1,140,537.4759043 twp | 1,244,222.7009865 twp | 1,347,907.9260687 twp | 1,451,593.1511509 twp | 1,555,278.3762331 twp | 1,658,963.6013153 twp | 1,762,648.8263976 twp | 1,866,334.0514798 twp | 1,970,019.276562 twp | 2,073,704.5016442 twp | 2,177,389.7267264 twp | 2,281,074.9518086 twp | 2,384,760.1768908 twp | 2,488,445.401973 twp | 2,592,130.6270552 twp | 2,695,815.8521374 twp | 2,799,501.0772196 twp | 2,903,186.3023018 twp | 3,006,871.5273841 twp | 3,110,556.7524663 twp | 3,214,241.9775485 twp | 3,317,927.2026307 twp | 3,421,612.4277129 twp | 3,525,297.6527951 twp | 3,628,982.8778773 twp | 3,732,668.1029595 twp | 3,836,353.3280417 twp | 3,940,038.5531239 twp | 4,043,723.7782061 twp | 4,147,409.0032884 twp | 4,251,094.2283706 twp | 4,354,779.4534528 twp | 4,458,464.678535 twp | 4,562,149.9036172 twp | 4,665,835.1286994 twp | 4,769,520.3537816 twp | 4,873,205.5788638 twp | 4,976,890.803946 twp | 5,080,576.0290282 twp | 5,184,261.2541104 twp | 5,287,946.4791927 twp | 5,391,631.7042749 twp | 5,495,316.9293571 twp | 5,599,002.1544393 twp | 5,702,687.3795215 twp | 5,806,372.6046037 twp | 5,910,057.8296859 twp | 6,013,743.0547681 twp | 6,117,428.2798503 twp | 6,221,113.5049325 twp | 6,324,798.7300147 twp | 6,428,483.9550969 twp | 6,532,169.1801792 twp | 6,635,854.4052614 twp | 6,739,539.6303436 twp | 6,843,224.8554258 twp | 6,946,910.080508 twp | 7,050,595.3055902 twp | 7,154,280.5306724 twp | 7,257,965.7557546 twp | 7,361,650.9808368 twp | 7,465,336.205919 twp | 7,569,021.4310012 twp | 7,672,706.6560835 twp | 7,776,391.8811657 twp | 7,880,077.1062479 twp | 7,983,762.3313301 twp | 8,087,447.5564123 twp | 8,191,132.7814945 twp | 8,294,818.0065767 twp | 8,398,503.2316589 twp | 8,502,188.4567411 twp | 8,605,873.6818233 twp | 8,709,558.9069055 twp | 8,813,244.1319878 twp | 8,916,929.35707 twp | 9,020,614.5821522 twp | 9,124,299.8072344 twp | 9,227,985.0323166 twp | 9,331,670.2573988 twp | 9,435,355.482481 twp | 9,539,040.7075632 twp | 9,642,725.9326454 twp | 9,746,411.1577276 twp | 9,850,096.3828098 twp | 9,953,781.6078921 twp | 10,057,466.832974 twp | 10,161,152.058056 twp | 10,264,837.283139 twp | 10,368,522.508221 twp |
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 | twips | fathoms | twips |
---|---|---|---|
1 | = 103685.22508221 | 4 | = 414740.90032884 |
1.5 | = 155527.83762331 | 4.5 | = 466583.51286994 |
2 | = 207370.45016442 | 5 | = 518426.12541104 |
2.5 | = 259213.06270552 | 5.5 | = 570268.73795215 |
3 | = 311055.67524663 | 6 | = 622111.35049325 |
A twip (abbreviating "twentieth of a point", "twentieth of an inch point", or "twentieth of an Imperial point"[citation needed]) is a typographical measurement, defined as 1/20 of a typographical point. One twip is 1/1440 inch or 17.639 µm.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
twip | twp | ≡ 1⁄1440 in | = 1.7638×10−5 m | Imperial/US |
twips | fathoms | twips | fathoms |
---|---|---|---|
1 | = 9.6445756780402E-6 | 4 | = 3.8578302712161E-5 |
1.5 | = 1.446686351706E-5 | 4.5 | = 4.3400590551181E-5 |
2 | = 1.928915135608E-5 | 5 | = 4.8222878390201E-5 |
2.5 | = 2.4111439195101E-5 | 5.5 | = 5.3045166229221E-5 |
3 | = 2.8933727034121E-5 | 6 | = 5.7867454068241E-5 |
fathoms | twips |
---|---|
1 | = 103,685.2250822 |
9.6445756780402 × 10-6 | = 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 …) |