| light-second | 1 light-second | 2 light-second | 3 light-second | 4 light-second | 5 light-second | 6 light-second | 7 light-second | 8 light-second | 9 light-second | 10 light-second | 11 light-second | 12 light-second | 13 light-second | 14 light-second | 15 light-second | 16 light-second | 17 light-second | 18 light-second | 19 light-second | 20 light-second | 21 light-second | 22 light-second | 23 light-second | 24 light-second | 25 light-second | 26 light-second | 27 light-second | 28 light-second | 29 light-second | 30 light-second | 31 light-second | 32 light-second | 33 light-second | 34 light-second | 35 light-second | 36 light-second | 37 light-second | 38 light-second | 39 light-second | 40 light-second | 41 light-second | 42 light-second | 43 light-second | 44 light-second | 45 light-second | 46 light-second | 47 light-second | 48 light-second | 49 light-second | 50 light-second | 51 light-second | 52 light-second | 53 light-second | 54 light-second | 55 light-second | 56 light-second | 57 light-second | 58 light-second | 59 light-second | 60 light-second | 61 light-second | 62 light-second | 63 light-second | 64 light-second | 65 light-second | 66 light-second | 67 light-second | 68 light-second | 69 light-second | 70 light-second | 71 light-second | 72 light-second | 73 light-second | 74 light-second | 75 light-second | 76 light-second | 77 light-second | 78 light-second | 79 light-second | 80 light-second | 81 light-second | 82 light-second | 83 light-second | 84 light-second | 85 light-second | 86 light-second | 87 light-second | 88 light-second | 89 light-second | 90 light-second | 91 light-second | 92 light-second | 93 light-second | 94 light-second | 95 light-second | 96 light-second | 97 light-second | 98 light-second | 99 light-second | 100 light-second |
| fathom | 163,928,509.40507 ftm | 327,857,018.81015 ftm | 491,785,528.21522 ftm | 655,714,037.6203 ftm | 819,642,547.02537 ftm | 983,571,056.43045 ftm | 1,147,499,565.8355 ftm | 1,311,428,075.2406 ftm | 1,475,356,584.6457 ftm | 1,639,285,094.0507 ftm | 1,803,213,603.4558 ftm | 1,967,142,112.8609 ftm | 2,131,070,622.266 ftm | 2,294,999,131.671 ftm | 2,458,927,641.0761 ftm | 2,622,856,150.4812 ftm | 2,786,784,659.8863 ftm | 2,950,713,169.2913 ftm | 3,114,641,678.6964 ftm | 3,278,570,188.1015 ftm | 3,442,498,697.5066 ftm | 3,606,427,206.9116 ftm | 3,770,355,716.3167 ftm | 3,934,284,225.7218 ftm | 4,098,212,735.1269 ftm | 4,262,141,244.5319 ftm | 4,426,069,753.937 ftm | 4,589,998,263.3421 ftm | 4,753,926,772.7472 ftm | 4,917,855,282.1522 ftm | 5,081,783,791.5573 ftm | 5,245,712,300.9624 ftm | 5,409,640,810.3675 ftm | 5,573,569,319.7725 ftm | 5,737,497,829.1776 ftm | 5,901,426,338.5827 ftm | 6,065,354,847.9878 ftm | 6,229,283,357.3928 ftm | 6,393,211,866.7979 ftm | 6,557,140,376.203 ftm | 6,721,068,885.608 ftm | 6,884,997,395.0131 ftm | 7,048,925,904.4182 ftm | 7,212,854,413.8233 ftm | 7,376,782,923.2283 ftm | 7,540,711,432.6334 ftm | 7,704,639,942.0385 ftm | 7,868,568,451.4436 ftm | 8,032,496,960.8486 ftm | 8,196,425,470.2537 ftm | 8,360,353,979.6588 ftm | 8,524,282,489.0639 ftm | 8,688,210,998.4689 ftm | 8,852,139,507.874 ftm | 9,016,068,017.2791 ftm | 9,179,996,526.6842 ftm | 9,343,925,036.0892 ftm | 9,507,853,545.4943 ftm | 9,671,782,054.8994 ftm | 9,835,710,564.3045 ftm | 9,999,639,073.7095 ftm | 10,163,567,583.115 ftm | 10,327,496,092.52 ftm | 10,491,424,601.925 ftm | 10,655,353,111.33 ftm | 10,819,281,620.735 ftm | 10,983,210,130.14 ftm | 11,147,138,639.545 ftm | 11,311,067,148.95 ftm | 11,474,995,658.355 ftm | 11,638,924,167.76 ftm | 11,802,852,677.165 ftm | 11,966,781,186.57 ftm | 12,130,709,695.976 ftm | 12,294,638,205.381 ftm | 12,458,566,714.786 ftm | 12,622,495,224.191 ftm | 12,786,423,733.596 ftm | 12,950,352,243.001 ftm | 13,114,280,752.406 ftm | 13,278,209,261.811 ftm | 13,442,137,771.216 ftm | 13,606,066,280.621 ftm | 13,769,994,790.026 ftm | 13,933,923,299.431 ftm | 14,097,851,808.836 ftm | 14,261,780,318.241 ftm | 14,425,708,827.647 ftm | 14,589,637,337.052 ftm | 14,753,565,846.457 ftm | 14,917,494,355.862 ftm | 15,081,422,865.267 ftm | 15,245,351,374.672 ftm | 15,409,279,884.077 ftm | 15,573,208,393.482 ftm | 15,737,136,902.887 ftm | 15,901,065,412.292 ftm | 16,064,993,921.697 ftm | 16,228,922,431.102 ftm | 16,392,850,940.507 ftm |
The light-second is a unit of length useful in astronomy, telecommunications and relativistic physics. It is defined as the distance that light travels in free space in onesecond, and is equal to exactly 299792458 metres (just over 186282 miles).
| 1 light-seconds = 163928509.40507 fathoms | 4 light-seconds = 655714037.6203 fathoms |
| 1.5 light-seconds = 245892764.10761 fathoms | 4.5 light-seconds = 737678292.32283 fathoms |
| 2 light-seconds = 327857018.81015 fathoms | 5 light-seconds = 819642547.02537 fathoms |
| 2.5 light-seconds = 409821273.51269 fathoms | 5.5 light-seconds = 901606801.72791 fathoms |
| 3 light-seconds = 491785528.21522 fathoms | 6 light-seconds = 983571056.43045 fathoms |
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 = 6.1002201729838E-9 light-seconds | 4 fathoms = 2.4400880691935E-8 light-seconds |
| 1.5 fathoms = 9.1503302594757E-9 light-seconds | 4.5 fathoms = 2.7450990778427E-8 light-seconds |
| 2 fathoms = 1.2200440345968E-8 light-seconds | 5 fathoms = 3.0501100864919E-8 light-seconds |
| 2.5 fathoms = 1.525055043246E-8 light-seconds | 5.5 fathoms = 3.3551210951411E-8 light-seconds |
| 3 fathoms = 1.8300660518951E-8 light-seconds | 6 fathoms = 3.6601321037903E-8 light-seconds |
| 1 light-seconds = 163,928,509.40507 fathoms |
| 1 fathoms = 6.1002201729838 × 10-9 light-seconds |