| 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 |
| chain | 0.0909089 ch | 0.1818178 ch | 0.2727267 ch | 0.3636356 ch | 0.4545446 ch | 0.5454535 ch | 0.6363624 ch | 0.7272713 ch | 0.8181802 ch | 0.9090891 ch | 0.9999980 ch | 1.0909069 ch | 1.1818158 ch | 1.2727247 ch | 1.3636337 ch | 1.4545426 ch | 1.5454515 ch | 1.6363604 ch | 1.7272693 ch | 1.8181782 ch | 1.9090871 ch | 1.9999960 ch | 2.0909049 ch | 2.1818138 ch | 2.2727228 ch | 2.3636317 ch | 2.4545406 ch | 2.5454495 ch | 2.6363584 ch | 2.7272673 ch | 2.8181762 ch | 2.9090851 ch | 2.9999940 ch | 3.0909029 ch | 3.1818119 ch | 3.2727208 ch | 3.3636297 ch | 3.4545386 ch | 3.5454475 ch | 3.6363564 ch | 3.7272653 ch | 3.8181742 ch | 3.9090831 ch | 3.9999920 ch | 4.0909010 ch | 4.1818099 ch | 4.2727188 ch | 4.3636277 ch | 4.4545366 ch | 4.5454455 ch | 4.6363544 ch | 4.7272633 ch | 4.8181722 ch | 4.9090811 ch | 4.9999901 ch | 5.0908990 ch | 5.1818079 ch | 5.2727168 ch | 5.3636257 ch | 5.4545346 ch | 5.5454435 ch | 5.6363524 ch | 5.7272613 ch | 5.8181702 ch | 5.9090792 ch | 5.9999881 ch | 6.0908970 ch | 6.1818059 ch | 6.2727148 ch | 6.3636237 ch | 6.4545326 ch | 6.5454415 ch | 6.6363504 ch | 6.7272594 ch | 6.8181683 ch | 6.9090772 ch | 6.9999861 ch | 7.0908950 ch | 7.1818039 ch | 7.2727128 ch | 7.3636217 ch | 7.4545306 ch | 7.5454395 ch | 7.6363485 ch | 7.7272574 ch | 7.8181663 ch | 7.9090752 ch | 7.9999841 ch | 8.0908930 ch | 8.1818019 ch | 8.2727108 ch | 8.3636197 ch | 8.4545286 ch | 8.5454376 ch | 8.6363465 ch | 8.7272554 ch | 8.8181643 ch | 8.9090732 ch | 8.9999821 ch | 9.0908910 ch |
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.
| 1 fathoms ≈ 0.090908910146922 chains | 4 fathoms ≈ 0.36363564058769 chains |
| 1.5 fathoms ≈ 0.13636336522038 chains | 4.5 fathoms ≈ 0.40909009566115 chains |
| 2 fathoms ≈ 0.18181782029384 chains | 5 fathoms ≈ 0.45454455073461 chains |
| 2.5 fathoms ≈ 0.2272722753673 chains | 5.5 fathoms ≈ 0.49999900580807 chains |
| 3 fathoms ≈ 0.27272673044077 chains | 6 fathoms ≈ 0.54545346088153 chains |
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.
| 1 chains ≈ 11.000021872266 fathoms | 4 chains ≈ 44.000087489064 fathoms |
| 1.5 chains ≈ 16.500032808399 fathoms | 4.5 chains ≈ 49.500098425197 fathoms |
| 2 chains ≈ 22.000043744532 fathoms | 5 chains ≈ 55.00010936133 fathoms |
| 2.5 chains ≈ 27.500054680665 fathoms | 5.5 chains ≈ 60.500120297463 fathoms |
| 3 chains ≈ 33.000065616798 fathoms | 6 chains ≈ 66.000131233596 fathoms |
| 1 fathoms ≈ 0.0909089 chains |
| 1 chains ≈ 11.0000219 fathoms |