| cable length (International) | 1 cable length (International) | 2 cable length (International) | 3 cable length (International) | 4 cable length (International) | 5 cable length (International) | 6 cable length (International) | 7 cable length (International) | 8 cable length (International) | 9 cable length (International) | 10 cable length (International) | 11 cable length (International) | 12 cable length (International) | 13 cable length (International) | 14 cable length (International) | 15 cable length (International) | 16 cable length (International) | 17 cable length (International) | 18 cable length (International) | 19 cable length (International) | 20 cable length (International) | 21 cable length (International) | 22 cable length (International) | 23 cable length (International) | 24 cable length (International) | 25 cable length (International) | 26 cable length (International) | 27 cable length (International) | 28 cable length (International) | 29 cable length (International) | 30 cable length (International) | 31 cable length (International) | 32 cable length (International) | 33 cable length (International) | 34 cable length (International) | 35 cable length (International) | 36 cable length (International) | 37 cable length (International) | 38 cable length (International) | 39 cable length (International) | 40 cable length (International) | 41 cable length (International) | 42 cable length (International) | 43 cable length (International) | 44 cable length (International) | 45 cable length (International) | 46 cable length (International) | 47 cable length (International) | 48 cable length (International) | 49 cable length (International) | 50 cable length (International) | 51 cable length (International) | 52 cable length (International) | 53 cable length (International) | 54 cable length (International) | 55 cable length (International) | 56 cable length (International) | 57 cable length (International) | 58 cable length (International) | 59 cable length (International) | 60 cable length (International) | 61 cable length (International) | 62 cable length (International) | 63 cable length (International) | 64 cable length (International) | 65 cable length (International) | 66 cable length (International) | 67 cable length (International) | 68 cable length (International) | 69 cable length (International) | 70 cable length (International) | 71 cable length (International) | 72 cable length (International) | 73 cable length (International) | 74 cable length (International) | 75 cable length (International) | 76 cable length (International) | 77 cable length (International) | 78 cable length (International) | 79 cable length (International) | 80 cable length (International) | 81 cable length (International) | 82 cable length (International) | 83 cable length (International) | 84 cable length (International) | 85 cable length (International) | 86 cable length (International) | 87 cable length (International) | 88 cable length (International) | 89 cable length (International) | 90 cable length (International) | 91 cable length (International) | 92 cable length (International) | 93 cable length (International) | 94 cable length (International) | 95 cable length (International) | 96 cable length (International) | 97 cable length (International) | 98 cable length (International) | 99 cable length (International) | 100 cable length (International) |
| metric inch | 463 000 in (metric) | 926 000 in (metric) | 1 389 000 in (metric) | 1 852 000 in (metric) | 2 315 000 in (metric) | 2 778 000 in (metric) | 3 241 000 in (metric) | 3 704 000 in (metric) | 4 167 000 in (metric) | 4 630 000 in (metric) | 5 093 000 in (metric) | 5 556 000 in (metric) | 6 019 000 in (metric) | 6 482 000 in (metric) | 6 945 000 in (metric) | 7 408 000 in (metric) | 7 871 000 in (metric) | 8 334 000 in (metric) | 8 797 000 in (metric) | 9 260 000 in (metric) | 9 723 000 in (metric) | 10 186 000 in (metric) | 10 649 000 in (metric) | 11 112 000 in (metric) | 11 575 000 in (metric) | 12 038 000 in (metric) | 12 501 000 in (metric) | 12 964 000 in (metric) | 13 427 000 in (metric) | 13 890 000 in (metric) | 14 353 000 in (metric) | 14 816 000 in (metric) | 15 279 000 in (metric) | 15 742 000 in (metric) | 16 205 000 in (metric) | 16 668 000 in (metric) | 17 131 000 in (metric) | 17 594 000 in (metric) | 18 057 000 in (metric) | 18 520 000 in (metric) | 18 983 000 in (metric) | 19 446 000 in (metric) | 19 909 000 in (metric) | 20 372 000 in (metric) | 20 835 000 in (metric) | 21 298 000 in (metric) | 21 761 000 in (metric) | 22 224 000 in (metric) | 22 687 000 in (metric) | 23 150 000 in (metric) | 23 613 000 in (metric) | 24 076 000 in (metric) | 24 539 000 in (metric) | 25 002 000 in (metric) | 25 465 000 in (metric) | 25 928 000 in (metric) | 26 391 000 in (metric) | 26 854 000 in (metric) | 27 317 000 in (metric) | 27 780 000 in (metric) | 28 243 000 in (metric) | 28 706 000 in (metric) | 29 169 000 in (metric) | 29 632 000 in (metric) | 30 095 000 in (metric) | 30 558 000 in (metric) | 31 021 000 in (metric) | 31 484 000 in (metric) | 31 947 000 in (metric) | 32 410 000 in (metric) | 32 873 000 in (metric) | 33 336 000 in (metric) | 33 799 000 in (metric) | 34 262 000 in (metric) | 34 725 000 in (metric) | 35 188 000 in (metric) | 35 651 000 in (metric) | 36 114 000 in (metric) | 36 577 000 in (metric) | 37 040 000 in (metric) | 37 503 000 in (metric) | 37 966 000 in (metric) | 38 429 000 in (metric) | 38 892 000 in (metric) | 39 355 000 in (metric) | 39 818 000 in (metric) | 40 281 000 in (metric) | 40 744 000 in (metric) | 41 207 000 in (metric) | 41 670 000 in (metric) | 42 133 000 in (metric) | 42 596 000 in (metric) | 43 059 000 in (metric) | 43 522 000 in (metric) | 43 985 000 in (metric) | 44 448 000 in (metric) | 44 911 000 in (metric) | 45 374 000 in (metric) | 45 837 000 in (metric) | 46 300 000 in (metric) |
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 (International) | ≡ 1⁄10 nmi | ≡ 185.2 m | Imperial/US |
| cable length (International) | metric inches | cable length (International) | metric inches |
|---|---|---|---|
| 1 | = 463000 | 4 | = 1852000 |
| 1.5 | = 694500 | 4.5 | = 2083500 |
| 2 | = 926000 | 5 | = 2315000 |
| 2.5 | = 1157500 | 5.5 | = 2546500 |
| 3 | = 1389000 | 6 | = 2778000 |
A metric inch is a nickname for a preferred 1⁄4 subdivision of an ISO 2848 basic module, or 1⁄12 of a metric foot measuring 25 millimetres (0.984 in). A metric inch is 0.4 millimetres (0.016 in) shorter than an inch.
The term was similarly used to refer to the historical Soviet Bloc practice of spacing integrated circuit pins at 1⁄10 of a 25 mm "metric inch" length, instead of the western practice of 1⁄10 of an imperial inch.
| Name of unit | Symbol | Definition | Relation to SI units | Unit System |
|---|---|---|---|---|
| metric inch | in (metric) | = 0.016 in | = 0.0004 m | Metric system SI |
| metric inches | cable length (International) | metric inches | cable length (International) |
|---|---|---|---|
| 1 | = 2.1598272138229E-6 | 4 | = 8.6393088552916E-6 |
| 1.5 | = 3.2397408207343E-6 | 4.5 | = 9.719222462203E-6 |
| 2 | = 4.3196544276458E-6 | 5 | = 1.0799136069114E-5 |
| 2.5 | = 5.3995680345572E-6 | 5.5 | = 1.1879049676026E-5 |
| 3 | = 6.4794816414687E-6 | 6 | = 1.2958963282937E-5 |
| cable length (International) | metric inches |
|---|---|
| 1 | = 463 000 |
| 2.1598272138229 × 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 …) |