| 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 |
| finger (cloth) | 2,622,856,150.4812 finger (cloth) | 5,245,712,300.9624 finger (cloth) | 7,868,568,451.4436 finger (cloth) | 10,491,424,601.925 finger (cloth) | 13,114,280,752.406 finger (cloth) | 15,737,136,902.887 finger (cloth) | 18,359,993,053.368 finger (cloth) | 20,982,849,203.85 finger (cloth) | 23,605,705,354.331 finger (cloth) | 26,228,561,504.812 finger (cloth) | 28,851,417,655.293 finger (cloth) | 31,474,273,805.774 finger (cloth) | 34,097,129,956.255 finger (cloth) | 36,719,986,106.737 finger (cloth) | 39,342,842,257.218 finger (cloth) | 41,965,698,407.699 finger (cloth) | 44,588,554,558.18 finger (cloth) | 47,211,410,708.661 finger (cloth) | 49,834,266,859.143 finger (cloth) | 52,457,123,009.624 finger (cloth) | 55,079,979,160.105 finger (cloth) | 57,702,835,310.586 finger (cloth) | 60,325,691,461.067 finger (cloth) | 62,948,547,611.549 finger (cloth) | 65,571,403,762.03 finger (cloth) | 68,194,259,912.511 finger (cloth) | 70,817,116,062.992 finger (cloth) | 73,439,972,213.473 finger (cloth) | 76,062,828,363.955 finger (cloth) | 78,685,684,514.436 finger (cloth) | 81,308,540,664.917 finger (cloth) | 83,931,396,815.398 finger (cloth) | 86,554,252,965.879 finger (cloth) | 89,177,109,116.36 finger (cloth) | 91,799,965,266.842 finger (cloth) | 94,422,821,417.323 finger (cloth) | 97,045,677,567.804 finger (cloth) | 99,668,533,718.285 finger (cloth) | 102,291,389,868.77 finger (cloth) | 104,914,246,019.25 finger (cloth) | 107,537,102,169.73 finger (cloth) | 110,159,958,320.21 finger (cloth) | 112,782,814,470.69 finger (cloth) | 115,405,670,621.17 finger (cloth) | 118,028,526,771.65 finger (cloth) | 120,651,382,922.13 finger (cloth) | 123,274,239,072.62 finger (cloth) | 125,897,095,223.1 finger (cloth) | 128,519,951,373.58 finger (cloth) | 131,142,807,524.06 finger (cloth) | 133,765,663,674.54 finger (cloth) | 136,388,519,825.02 finger (cloth) | 139,011,375,975.5 finger (cloth) | 141,634,232,125.98 finger (cloth) | 144,257,088,276.47 finger (cloth) | 146,879,944,426.95 finger (cloth) | 149,502,800,577.43 finger (cloth) | 152,125,656,727.91 finger (cloth) | 154,748,512,878.39 finger (cloth) | 157,371,369,028.87 finger (cloth) | 159,994,225,179.35 finger (cloth) | 162,617,081,329.83 finger (cloth) | 165,239,937,480.31 finger (cloth) | 167,862,793,630.8 finger (cloth) | 170,485,649,781.28 finger (cloth) | 173,108,505,931.76 finger (cloth) | 175,731,362,082.24 finger (cloth) | 178,354,218,232.72 finger (cloth) | 180,977,074,383.2 finger (cloth) | 183,599,930,533.68 finger (cloth) | 186,222,786,684.16 finger (cloth) | 188,845,642,834.65 finger (cloth) | 191,468,498,985.13 finger (cloth) | 194,091,355,135.61 finger (cloth) | 196,714,211,286.09 finger (cloth) | 199,337,067,436.57 finger (cloth) | 201,959,923,587.05 finger (cloth) | 204,582,779,737.53 finger (cloth) | 207,205,635,888.01 finger (cloth) | 209,828,492,038.5 finger (cloth) | 212,451,348,188.98 finger (cloth) | 215,074,204,339.46 finger (cloth) | 217,697,060,489.94 finger (cloth) | 220,319,916,640.42 finger (cloth) | 222,942,772,790.9 finger (cloth) | 225,565,628,941.38 finger (cloth) | 228,188,485,091.86 finger (cloth) | 230,811,341,242.34 finger (cloth) | 233,434,197,392.83 finger (cloth) | 236,057,053,543.31 finger (cloth) | 238,679,909,693.79 finger (cloth) | 241,302,765,844.27 finger (cloth) | 243,925,621,994.75 finger (cloth) | 246,548,478,145.23 finger (cloth) | 249,171,334,295.71 finger (cloth) | 251,794,190,446.19 finger (cloth) | 254,417,046,596.68 finger (cloth) | 257,039,902,747.16 finger (cloth) | 259,662,758,897.64 finger (cloth) | 262,285,615,048.12 finger (cloth) |
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).
| Name of unit | Symbol | Definition | Relation to SI units | Unit System |
|---|---|---|---|---|
| light-second | ≡ Distance light travels in one second in vacuum | ≡ 299 792 458 m | Science - Astronomy (Length) |
| light-seconds | finger (cloth) | light-seconds | finger (cloth) |
|---|---|---|---|
| 1 | = 2622856150.4812 | 4 | = 10491424601.925 |
| 1.5 | = 3934284225.7218 | 4.5 | = 11802852677.165 |
| 2 | = 5245712300.9624 | 5 | = 13114280752.406 |
| 2.5 | = 6557140376.203 | 5.5 | = 14425708827.647 |
| 3 | = 7868568451.4436 | 6 | = 15737136902.887 |
A finger (sometimes fingerbreadth or finger's breadth) is any of several units of measurement that are approximately the width of an adult human finger, including:
The digit, also known as digitus or digitus transversus (Latin), dactyl (Greek) or dactylus, or finger's breadth — 3⁄4 of an inch or 1⁄16 of a foot
| Name of unit | Symbol | Definition | Relation to SI units | Unit System |
|---|---|---|---|---|
| finger (cloth) | ≡ 4 ⁄12 in | = 0.1143 m | Other (Length) |
| finger (cloth) | light-seconds | finger (cloth) | light-seconds |
|---|---|---|---|
| 1 | = 3.8126376081149E-10 | 4 | = 1.525055043246E-9 |
| 1.5 | = 5.7189564121723E-10 | 4.5 | = 1.7156869236517E-9 |
| 2 | = 7.6252752162298E-10 | 5 | = 1.9063188040574E-9 |
| 2.5 | = 9.5315940202872E-10 | 5.5 | = 2.0969506844632E-9 |
| 3 | = 1.1437912824345E-9 | 6 | = 2.2875825648689E-9 |
| light-seconds | finger (cloth) |
|---|---|
| 1 | = 2,622,856,150.4812 |
| 3.8126376081149 × 10-10 | = 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 …) |