cable length (imperial) | 1 cable length (imperial) | 2 cable length (imperial) | 3 cable length (imperial) | 4 cable length (imperial) | 5 cable length (imperial) | 6 cable length (imperial) | 7 cable length (imperial) | 8 cable length (imperial) | 9 cable length (imperial) | 10 cable length (imperial) | 11 cable length (imperial) | 12 cable length (imperial) | 13 cable length (imperial) | 14 cable length (imperial) | 15 cable length (imperial) | 16 cable length (imperial) | 17 cable length (imperial) | 18 cable length (imperial) | 19 cable length (imperial) | 20 cable length (imperial) | 21 cable length (imperial) | 22 cable length (imperial) | 23 cable length (imperial) | 24 cable length (imperial) | 25 cable length (imperial) | 26 cable length (imperial) | 27 cable length (imperial) | 28 cable length (imperial) | 29 cable length (imperial) | 30 cable length (imperial) | 31 cable length (imperial) | 32 cable length (imperial) | 33 cable length (imperial) | 34 cable length (imperial) | 35 cable length (imperial) | 36 cable length (imperial) | 37 cable length (imperial) | 38 cable length (imperial) | 39 cable length (imperial) | 40 cable length (imperial) | 41 cable length (imperial) | 42 cable length (imperial) | 43 cable length (imperial) | 44 cable length (imperial) | 45 cable length (imperial) | 46 cable length (imperial) | 47 cable length (imperial) | 48 cable length (imperial) | 49 cable length (imperial) | 50 cable length (imperial) | 51 cable length (imperial) | 52 cable length (imperial) | 53 cable length (imperial) | 54 cable length (imperial) | 55 cable length (imperial) | 56 cable length (imperial) | 57 cable length (imperial) | 58 cable length (imperial) | 59 cable length (imperial) | 60 cable length (imperial) | 61 cable length (imperial) | 62 cable length (imperial) | 63 cable length (imperial) | 64 cable length (imperial) | 65 cable length (imperial) | 66 cable length (imperial) | 67 cable length (imperial) | 68 cable length (imperial) | 69 cable length (imperial) | 70 cable length (imperial) | 71 cable length (imperial) | 72 cable length (imperial) | 73 cable length (imperial) | 74 cable length (imperial) | 75 cable length (imperial) | 76 cable length (imperial) | 77 cable length (imperial) | 78 cable length (imperial) | 79 cable length (imperial) | 80 cable length (imperial) | 81 cable length (imperial) | 82 cable length (imperial) | 83 cable length (imperial) | 84 cable length (imperial) | 85 cable length (imperial) | 86 cable length (imperial) | 87 cable length (imperial) | 88 cable length (imperial) | 89 cable length (imperial) | 90 cable length (imperial) | 91 cable length (imperial) | 92 cable length (imperial) | 93 cable length (imperial) | 94 cable length (imperial) | 95 cable length (imperial) | 96 cable length (imperial) | 97 cable length (imperial) | 98 cable length (imperial) | 99 cable length (imperial) | 100 cable length (imperial) |
span | 810.6666667 span | 1,621.3333333 span | 2 432 span | 3,242.6666667 span | 4,053.3333333 span | 4 864 span | 5,674.6666667 span | 6,485.3333333 span | 7 296 span | 8,106.6666667 span | 8,917.3333333 span | 9 728 span | 10,538.6666667 span | 11,349.3333333 span | 12 160 span | 12,970.6666667 span | 13,781.3333333 span | 14 592 span | 15,402.6666667 span | 16,213.3333333 span | 17 024 span | 17,834.6666667 span | 18,645.3333333 span | 19 456 span | 20,266.6666667 span | 21,077.3333333 span | 21 888 span | 22,698.6666667 span | 23,509.3333333 span | 24 320 span | 25,130.6666667 span | 25,941.3333333 span | 26 752 span | 27,562.6666667 span | 28,373.3333333 span | 29 184 span | 29,994.6666667 span | 30,805.3333333 span | 31 616 span | 32,426.6666667 span | 33,237.3333333 span | 34 048 span | 34,858.6666667 span | 35,669.3333333 span | 36 480 span | 37,290.6666667 span | 38,101.3333333 span | 38 912 span | 39,722.6666667 span | 40,533.3333333 span | 41 344 span | 42,154.6666667 span | 42,965.3333333 span | 43 776 span | 44,586.6666667 span | 45,397.3333333 span | 46 208 span | 47,018.6666667 span | 47,829.3333333 span | 48 640 span | 49,450.6666667 span | 50,261.3333333 span | 51 072 span | 51,882.6666667 span | 52,693.3333333 span | 53 504 span | 54,314.6666667 span | 55,125.3333333 span | 55 936 span | 56,746.6666667 span | 57,557.3333333 span | 58 368 span | 59,178.6666667 span | 59,989.3333333 span | 60 800 span | 61,610.6666667 span | 62,421.3333333 span | 63 232 span | 64,042.6666667 span | 64,853.3333333 span | 65 664 span | 66,474.6666667 span | 67,285.3333333 span | 68 096 span | 68,906.6666667 span | 69,717.3333333 span | 70 528 span | 71,338.6666667 span | 72,149.3333333 span | 72 960 span | 73,770.6666667 span | 74,581.3333333 span | 75 392 span | 76,202.6666667 span | 77,013.3333333 span | 77 824 span | 78,634.6666667 span | 79,445.3333333 span | 80 256 span | 81,066.6666667 span |
A cable length or length of cable is a nautical unit of measure equal to one tenth of a nautical mile or approximately 100 fathoms. The unit is named after the length of a ship's anchor cable in the Age of Sail. The definition varies:
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
cable length (imperial) | ≡ 608 ft | ≈ 185.3184 m | Imperial/US |
cable length (imperial) | spans | cable length (imperial) | spans |
---|---|---|---|
1 | ≈ 810.66666666667 | 4 | ≈ 3242.6666666667 |
1.5 | ≈ 1216 | 4.5 | ≈ 3648 |
2 | ≈ 1621.3333333333 | 5 | ≈ 4053.3333333333 |
2.5 | ≈ 2026.6666666667 | 5.5 | ≈ 4458.6666666667 |
3 | ≈ 2432 | 6 | ≈ 4864 |
A span is the distance measured by a human hand, from the tip of the thumb to the tip of the little finger. In ancient times, a span was considered to be half a cubit. Sometimes the distinction is made between the great span (thumb to little finger) and little span (index finger to little finger).
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
span | span | ≡ 9 in | = 0.2286 m | Imperial/US |
spans | cable length (imperial) | spans | cable length (imperial) |
---|---|---|---|
1 | ≈ 0.0012335526315789 | 4 | ≈ 0.0049342105263158 |
1.5 | ≈ 0.0018503289473684 | 4.5 | ≈ 0.0055509868421053 |
2 | ≈ 0.0024671052631579 | 5 | ≈ 0.0061677631578947 |
2.5 | ≈ 0.0030838815789474 | 5.5 | ≈ 0.0067845394736842 |
3 | ≈ 0.0037006578947368 | 6 | ≈ 0.0074013157894737 |
cable length (imperial) | spans |
---|---|
1 | ≈ 810.6666667 |
0.0012336 | ≈ 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 …) |