chain | 1 ch | 2 ch | 3 ch | 4 ch | 5 ch | 6 ch | 7 ch | 8 ch | 9 ch | 10 ch | 11 ch | 12 ch | 13 ch | 14 ch | 15 ch | 16 ch | 17 ch | 18 ch | 19 ch | 20 ch | 21 ch | 22 ch | 23 ch | 24 ch | 25 ch | 26 ch | 27 ch | 28 ch | 29 ch | 30 ch | 31 ch | 32 ch | 33 ch | 34 ch | 35 ch | 36 ch | 37 ch | 38 ch | 39 ch | 40 ch | 41 ch | 42 ch | 43 ch | 44 ch | 45 ch | 46 ch | 47 ch | 48 ch | 49 ch | 50 ch | 51 ch | 52 ch | 53 ch | 54 ch | 55 ch | 56 ch | 57 ch | 58 ch | 59 ch | 60 ch | 61 ch | 62 ch | 63 ch | 64 ch | 65 ch | 66 ch | 67 ch | 68 ch | 69 ch | 70 ch | 71 ch | 72 ch | 73 ch | 74 ch | 75 ch | 76 ch | 77 ch | 78 ch | 79 ch | 80 ch | 81 ch | 82 ch | 83 ch | 84 ch | 85 ch | 86 ch | 87 ch | 88 ch | 89 ch | 90 ch | 91 ch | 92 ch | 93 ch | 94 ch | 95 ch | 96 ch | 97 ch | 98 ch | 99 ch | 100 ch |
fathom | 11.0000219 ftm | 22.0000437 ftm | 33.0000656 ftm | 44.0000875 ftm | 55.0001094 ftm | 66.0001312 ftm | 77.0001531 ftm | 88.0001750 ftm | 99.0001969 ftm | 110.0002187 ftm | 121.0002406 ftm | 132.0002625 ftm | 143.0002843 ftm | 154.0003062 ftm | 165.0003281 ftm | 176.0003500 ftm | 187.0003718 ftm | 198.0003937 ftm | 209.0004156 ftm | 220.0004374 ftm | 231.0004593 ftm | 242.0004812 ftm | 253.0005031 ftm | 264.0005249 ftm | 275.0005468 ftm | 286.0005687 ftm | 297.0005906 ftm | 308.0006124 ftm | 319.0006343 ftm | 330.0006562 ftm | 341.0006780 ftm | 352.0006999 ftm | 363.0007218 ftm | 374.0007437 ftm | 385.0007655 ftm | 396.0007874 ftm | 407.0008093 ftm | 418.0008311 ftm | 429.0008530 ftm | 440.0008749 ftm | 451.0008968 ftm | 462.0009186 ftm | 473.0009405 ftm | 484.0009624 ftm | 495.0009843 ftm | 506.0010061 ftm | 517.0010280 ftm | 528.0010499 ftm | 539.0010717 ftm | 550.0010936 ftm | 561.0011155 ftm | 572.0011374 ftm | 583.0011592 ftm | 594.0011811 ftm | 605.0012030 ftm | 616.0012248 ftm | 627.0012467 ftm | 638.0012686 ftm | 649.0012905 ftm | 660.0013123 ftm | 671.0013342 ftm | 682.0013561 ftm | 693.0013780 ftm | 704.0013998 ftm | 715.0014217 ftm | 726.0014436 ftm | 737.0014654 ftm | 748.0014873 ftm | 759.0015092 ftm | 770.0015311 ftm | 781.0015529 ftm | 792.0015748 ftm | 803.0015967 ftm | 814.0016185 ftm | 825.0016404 ftm | 836.0016623 ftm | 847.0016842 ftm | 858.0017060 ftm | 869.0017279 ftm | 880.0017498 ftm | 891.0017717 ftm | 902.0017935 ftm | 913.0018154 ftm | 924.0018373 ftm | 935.0018591 ftm | 946.0018810 ftm | 957.0019029 ftm | 968.0019248 ftm | 979.0019466 ftm | 990.0019685 ftm | 1,001.0019904 ftm | 1,012.0020122 ftm | 1,023.0020341 ftm | 1,034.0020560 ftm | 1,045.0020779 ftm | 1,056.0020997 ftm | 1,067.0021216 ftm | 1,078.0021435 ftm | 1,089.0021654 ftm | 1,100.0021872 ftm |
A chain is a unit of length. It measures 66 feet, or 22 yards, or 100 links, or 4 rods (20.1168 m). There are 10 chains in a furlong, and 80 chains in one statute mile. An acre is the area of 10 square chains (that is, an area of one chain by one furlong). The chain has been used for several centuries in Britain and in some other countries influenced by British practice.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
chain | ch | ≡ 66 ft (US) ≡ 4 rods | ≈ 20.11684 m | Imperial/US |
chains | fathoms | chains | fathoms |
---|---|---|---|
1 | ≈ 11.000021872266 | 4 | ≈ 44.000087489064 |
1.5 | ≈ 16.500032808399 | 4.5 | ≈ 49.500098425197 |
2 | ≈ 22.000043744532 | 5 | ≈ 55.00010936133 |
2.5 | ≈ 27.500054680665 | 5.5 | ≈ 60.500120297463 |
3 | ≈ 33.000065616798 | 6 | ≈ 66.000131233596 |
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 | chains | fathoms | chains |
---|---|---|---|
1 | ≈ 0.090908910146922 | 4 | ≈ 0.36363564058769 |
1.5 | ≈ 0.13636336522038 | 4.5 | ≈ 0.40909009566115 |
2 | ≈ 0.18181782029384 | 5 | ≈ 0.45454455073461 |
2.5 | ≈ 0.2272722753673 | 5.5 | ≈ 0.49999900580807 |
3 | ≈ 0.27272673044077 | 6 | ≈ 0.54545346088153 |
chains | fathoms |
---|---|
1 | ≈ 11.0000219 |
0.0909089 | ≈ 1 |
You can find the conversion in other languages in the following:
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 …) |