cable length (US) | 1 cable length (US) | 2 cable length (US) | 3 cable length (US) | 4 cable length (US) | 5 cable length (US) | 6 cable length (US) | 7 cable length (US) | 8 cable length (US) | 9 cable length (US) | 10 cable length (US) | 11 cable length (US) | 12 cable length (US) | 13 cable length (US) | 14 cable length (US) | 15 cable length (US) | 16 cable length (US) | 17 cable length (US) | 18 cable length (US) | 19 cable length (US) | 20 cable length (US) | 21 cable length (US) | 22 cable length (US) | 23 cable length (US) | 24 cable length (US) | 25 cable length (US) | 26 cable length (US) | 27 cable length (US) | 28 cable length (US) | 29 cable length (US) | 30 cable length (US) | 31 cable length (US) | 32 cable length (US) | 33 cable length (US) | 34 cable length (US) | 35 cable length (US) | 36 cable length (US) | 37 cable length (US) | 38 cable length (US) | 39 cable length (US) | 40 cable length (US) | 41 cable length (US) | 42 cable length (US) | 43 cable length (US) | 44 cable length (US) | 45 cable length (US) | 46 cable length (US) | 47 cable length (US) | 48 cable length (US) | 49 cable length (US) | 50 cable length (US) | 51 cable length (US) | 52 cable length (US) | 53 cable length (US) | 54 cable length (US) | 55 cable length (US) | 56 cable length (US) | 57 cable length (US) | 58 cable length (US) | 59 cable length (US) | 60 cable length (US) | 61 cable length (US) | 62 cable length (US) | 63 cable length (US) | 64 cable length (US) | 65 cable length (US) | 66 cable length (US) | 67 cable length (US) | 68 cable length (US) | 69 cable length (US) | 70 cable length (US) | 71 cable length (US) | 72 cable length (US) | 73 cable length (US) | 74 cable length (US) | 75 cable length (US) | 76 cable length (US) | 77 cable length (US) | 78 cable length (US) | 79 cable length (US) | 80 cable length (US) | 81 cable length (US) | 82 cable length (US) | 83 cable length (US) | 84 cable length (US) | 85 cable length (US) | 86 cable length (US) | 87 cable length (US) | 88 cable length (US) | 89 cable length (US) | 90 cable length (US) | 91 cable length (US) | 92 cable length (US) | 93 cable length (US) | 94 cable length (US) | 95 cable length (US) | 96 cable length (US) | 97 cable length (US) | 98 cable length (US) | 99 cable length (US) | 100 cable length (US) |
earth radius | 3.4446083817297 × 10-5R⊕ | 6.8892167634594 × 10-5R⊕ | 0.0001033 R⊕ | 0.0001378 R⊕ | 0.0001722 R⊕ | 0.0002067 R⊕ | 0.0002411 R⊕ | 0.0002756 R⊕ | 0.0003100 R⊕ | 0.0003445 R⊕ | 0.0003789 R⊕ | 0.0004134 R⊕ | 0.0004478 R⊕ | 0.0004822 R⊕ | 0.0005167 R⊕ | 0.0005511 R⊕ | 0.0005856 R⊕ | 0.0006200 R⊕ | 0.0006545 R⊕ | 0.0006889 R⊕ | 0.0007234 R⊕ | 0.0007578 R⊕ | 0.0007923 R⊕ | 0.0008267 R⊕ | 0.0008612 R⊕ | 0.0008956 R⊕ | 0.0009300 R⊕ | 0.0009645 R⊕ | 0.0009989 R⊕ | 0.0010334 R⊕ | 0.0010678 R⊕ | 0.0011023 R⊕ | 0.0011367 R⊕ | 0.0011712 R⊕ | 0.0012056 R⊕ | 0.0012401 R⊕ | 0.0012745 R⊕ | 0.0013090 R⊕ | 0.0013434 R⊕ | 0.0013778 R⊕ | 0.0014123 R⊕ | 0.0014467 R⊕ | 0.0014812 R⊕ | 0.0015156 R⊕ | 0.0015501 R⊕ | 0.0015845 R⊕ | 0.0016190 R⊕ | 0.0016534 R⊕ | 0.0016879 R⊕ | 0.0017223 R⊕ | 0.0017568 R⊕ | 0.0017912 R⊕ | 0.0018256 R⊕ | 0.0018601 R⊕ | 0.0018945 R⊕ | 0.0019290 R⊕ | 0.0019634 R⊕ | 0.0019979 R⊕ | 0.0020323 R⊕ | 0.0020668 R⊕ | 0.0021012 R⊕ | 0.0021357 R⊕ | 0.0021701 R⊕ | 0.0022045 R⊕ | 0.0022390 R⊕ | 0.0022734 R⊕ | 0.0023079 R⊕ | 0.0023423 R⊕ | 0.0023768 R⊕ | 0.0024112 R⊕ | 0.0024457 R⊕ | 0.0024801 R⊕ | 0.0025146 R⊕ | 0.0025490 R⊕ | 0.0025835 R⊕ | 0.0026179 R⊕ | 0.0026523 R⊕ | 0.0026868 R⊕ | 0.0027212 R⊕ | 0.0027557 R⊕ | 0.0027901 R⊕ | 0.0028246 R⊕ | 0.0028590 R⊕ | 0.0028935 R⊕ | 0.0029279 R⊕ | 0.0029624 R⊕ | 0.0029968 R⊕ | 0.0030313 R⊕ | 0.0030657 R⊕ | 0.0031001 R⊕ | 0.0031346 R⊕ | 0.0031690 R⊕ | 0.0032035 R⊕ | 0.0032379 R⊕ | 0.0032724 R⊕ | 0.0033068 R⊕ | 0.0033413 R⊕ | 0.0033757 R⊕ | 0.0034102 R⊕ | 0.0034446 R⊕ |
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 (US) | ≡ 720 ft | = 219.456 m | Imperial/US |
cable length (US) | earth radius | cable length (US) | earth radius |
---|---|---|---|
1 | ≈ 3.4446083817297E-5 | 4 | ≈ 0.00013778433526919 |
1.5 | ≈ 5.1669125725946E-5 | 4.5 | ≈ 0.00015500737717784 |
2 | ≈ 6.8892167634594E-5 | 5 | ≈ 0.00017223041908649 |
2.5 | ≈ 8.6115209543243E-5 | 5.5 | ≈ 0.00018945346099513 |
3 | ≈ 0.00010333825145189 | 6 | ≈ 0.00020667650290378 |
Earth radius is the distance from Earth's center to its surface, about 6,371 km (3,959 mi). This length is also used as a unit of distance, especially in astronomy and geology, where it is usually denoted by R⊕.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
earth radius | R⊕ | ≈ 6,371 km | ≈ 6,371 km | Science - Astronomy (Length) |
earth radius | cable length (US) | earth radius | cable length (US) |
---|---|---|---|
1 | ≈ 29030.87634879 | 4 | ≈ 116123.50539516 |
1.5 | ≈ 43546.314523185 | 4.5 | ≈ 130638.94356955 |
2 | ≈ 58061.752697579 | 5 | ≈ 145154.38174395 |
2.5 | ≈ 72577.190871974 | 5.5 | ≈ 159669.81991834 |
3 | ≈ 87092.629046369 | 6 | ≈ 174185.25809274 |
cable length (US) | earth radius |
---|---|
1 | ≈ 3.4446083817297 × 10-5 |
29,030.8763488 | ≈ 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 …) |