| nautical mile | 1 NM; nmi | 2 NM; nmi | 3 NM; nmi | 4 NM; nmi | 5 NM; nmi | 6 NM; nmi | 7 NM; nmi | 8 NM; nmi | 9 NM; nmi | 10 NM; nmi | 11 NM; nmi | 12 NM; nmi | 13 NM; nmi | 14 NM; nmi | 15 NM; nmi | 16 NM; nmi | 17 NM; nmi | 18 NM; nmi | 19 NM; nmi | 20 NM; nmi | 21 NM; nmi | 22 NM; nmi | 23 NM; nmi | 24 NM; nmi | 25 NM; nmi | 26 NM; nmi | 27 NM; nmi | 28 NM; nmi | 29 NM; nmi | 30 NM; nmi | 31 NM; nmi | 32 NM; nmi | 33 NM; nmi | 34 NM; nmi | 35 NM; nmi | 36 NM; nmi | 37 NM; nmi | 38 NM; nmi | 39 NM; nmi | 40 NM; nmi | 41 NM; nmi | 42 NM; nmi | 43 NM; nmi | 44 NM; nmi | 45 NM; nmi | 46 NM; nmi | 47 NM; nmi | 48 NM; nmi | 49 NM; nmi | 50 NM; nmi | 51 NM; nmi | 52 NM; nmi | 53 NM; nmi | 54 NM; nmi | 55 NM; nmi | 56 NM; nmi | 57 NM; nmi | 58 NM; nmi | 59 NM; nmi | 60 NM; nmi | 61 NM; nmi | 62 NM; nmi | 63 NM; nmi | 64 NM; nmi | 65 NM; nmi | 66 NM; nmi | 67 NM; nmi | 68 NM; nmi | 69 NM; nmi | 70 NM; nmi | 71 NM; nmi | 72 NM; nmi | 73 NM; nmi | 74 NM; nmi | 75 NM; nmi | 76 NM; nmi | 77 NM; nmi | 78 NM; nmi | 79 NM; nmi | 80 NM; nmi | 81 NM; nmi | 82 NM; nmi | 83 NM; nmi | 84 NM; nmi | 85 NM; nmi | 86 NM; nmi | 87 NM; nmi | 88 NM; nmi | 89 NM; nmi | 90 NM; nmi | 91 NM; nmi | 92 NM; nmi | 93 NM; nmi | 94 NM; nmi | 95 NM; nmi | 96 NM; nmi | 97 NM; nmi | 98 NM; nmi | 99 NM; nmi | 100 NM; nmi |
| cable length (International) | 10 cable length (International) | 20 cable length (International) | 30 cable length (International) | 40 cable length (International) | 50 cable length (International) | 60 cable length (International) | 70 cable length (International) | 80 cable length (International) | 90 cable length (International) | 100 cable length (International) | 110 cable length (International) | 120 cable length (International) | 130 cable length (International) | 140 cable length (International) | 150 cable length (International) | 160 cable length (International) | 170 cable length (International) | 180 cable length (International) | 190 cable length (International) | 200 cable length (International) | 210 cable length (International) | 220 cable length (International) | 230 cable length (International) | 240 cable length (International) | 250 cable length (International) | 260 cable length (International) | 270 cable length (International) | 280 cable length (International) | 290 cable length (International) | 300 cable length (International) | 310 cable length (International) | 320 cable length (International) | 330 cable length (International) | 340 cable length (International) | 350 cable length (International) | 360 cable length (International) | 370 cable length (International) | 380 cable length (International) | 390 cable length (International) | 400 cable length (International) | 410 cable length (International) | 420 cable length (International) | 430 cable length (International) | 440 cable length (International) | 450 cable length (International) | 460 cable length (International) | 470 cable length (International) | 480 cable length (International) | 490 cable length (International) | 500 cable length (International) | 510 cable length (International) | 520 cable length (International) | 530 cable length (International) | 540 cable length (International) | 550 cable length (International) | 560 cable length (International) | 570 cable length (International) | 580 cable length (International) | 590 cable length (International) | 600 cable length (International) | 610 cable length (International) | 620 cable length (International) | 630 cable length (International) | 640 cable length (International) | 650 cable length (International) | 660 cable length (International) | 670 cable length (International) | 680 cable length (International) | 690 cable length (International) | 700 cable length (International) | 710 cable length (International) | 720 cable length (International) | 730 cable length (International) | 740 cable length (International) | 750 cable length (International) | 760 cable length (International) | 770 cable length (International) | 780 cable length (International) | 790 cable length (International) | 800 cable length (International) | 810 cable length (International) | 820 cable length (International) | 830 cable length (International) | 840 cable length (International) | 850 cable length (International) | 860 cable length (International) | 870 cable length (International) | 880 cable length (International) | 890 cable length (International) | 900 cable length (International) | 910 cable length (International) | 920 cable length (International) | 930 cable length (International) | 940 cable length (International) | 950 cable length (International) | 960 cable length (International) | 970 cable length (International) | 980 cable length (International) | 990 cable length (International) | 1 000 cable length (International) |
A nautical mile is a unit of measurement defined as exactly 1852 meters (about 6,076.1 feet or 1.1508 statute miles). Historically, it was defined as one minute of latitude, which is equivalent to one sixtieth of a degree of latitude.
| Name of unit | Symbol | Definition | Relation to SI units | Unit System |
|---|---|---|---|---|
| nautical mile | NM; nmi | ≡ 1852 m | ≡ 1852 m | Imperial/US |
| nautical miles | cable length (International) | nautical miles | cable length (International) |
|---|---|---|---|
| 1 | ≡ 10 | 4 | ≡ 40 |
| 1.5 | ≡ 15 | 4.5 | ≡ 45 |
| 2 | ≡ 20 | 5 | ≡ 50 |
| 2.5 | ≡ 25 | 5.5 | ≡ 55 |
| 3 | ≡ 30 | 6 | ≡ 60 |
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) | nautical miles | cable length (International) | nautical miles |
|---|---|---|---|
| 1 | ≡ 0.1 | 4 | ≡ 0.4 |
| 1.5 | ≡ 0.15 | 4.5 | ≡ 0.45 |
| 2 | ≡ 0.2 | 5 | ≡ 0.5 |
| 2.5 | ≡ 0.25 | 5.5 | ≡ 0.55 |
| 3 | ≡ 0.3 | 6 | ≡ 0.6 |
| nautical miles | cable length (International) |
|---|---|
| 1 | ≡ 10 |
| 0.1 | ≡ 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 …) |