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 |
chain | 14,902,562.132025 ch | 29,805,124.264049 ch | 44,707,686.396074 ch | 59,610,248.528099 ch | 74,512,810.660124 ch | 89,415,372.792148 ch | 104,317,934.92417 ch | 119,220,497.0562 ch | 134,123,059.18822 ch | 149,025,621.32025 ch | 163,928,183.45227 ch | 178,830,745.5843 ch | 193,733,307.71632 ch | 208,635,869.84835 ch | 223,538,431.98037 ch | 238,440,994.1124 ch | 253,343,556.24442 ch | 268,246,118.37644 ch | 283,148,680.50847 ch | 298,051,242.64049 ch | 312,953,804.77252 ch | 327,856,366.90454 ch | 342,758,929.03657 ch | 357,661,491.16859 ch | 372,564,053.30062 ch | 387,466,615.43264 ch | 402,369,177.56467 ch | 417,271,739.69669 ch | 432,174,301.82872 ch | 447,076,863.96074 ch | 461,979,426.09277 ch | 476,881,988.22479 ch | 491,784,550.35682 ch | 506,687,112.48884 ch | 521,589,674.62086 ch | 536,492,236.75289 ch | 551,394,798.88491 ch | 566,297,361.01694 ch | 581,199,923.14896 ch | 596,102,485.28099 ch | 611,005,047.41301 ch | 625,907,609.54504 ch | 640,810,171.67706 ch | 655,712,733.80909 ch | 670,615,295.94111 ch | 685,517,858.07314 ch | 700,420,420.20516 ch | 715,322,982.33719 ch | 730,225,544.46921 ch | 745,128,106.60124 ch | 760,030,668.73326 ch | 774,933,230.86529 ch | 789,835,792.99731 ch | 804,738,355.12933 ch | 819,640,917.26136 ch | 834,543,479.39338 ch | 849,446,041.52541 ch | 864,348,603.65743 ch | 879,251,165.78946 ch | 894,153,727.92148 ch | 909,056,290.05351 ch | 923,958,852.18553 ch | 938,861,414.31756 ch | 953,763,976.44958 ch | 968,666,538.58161 ch | 983,569,100.71363 ch | 998,471,662.84566 ch | 1,013,374,224.9777 ch | 1,028,276,787.1097 ch | 1,043,179,349.2417 ch | 1,058,081,911.3738 ch | 1,072,984,473.5058 ch | 1,087,887,035.6378 ch | 1,102,789,597.7698 ch | 1,117,692,159.9019 ch | 1,132,594,722.0339 ch | 1,147,497,284.1659 ch | 1,162,399,846.2979 ch | 1,177,302,408.43 ch | 1,192,204,970.562 ch | 1,207,107,532.694 ch | 1,222,010,094.826 ch | 1,236,912,656.9581 ch | 1,251,815,219.0901 ch | 1,266,717,781.2221 ch | 1,281,620,343.3541 ch | 1,296,522,905.4862 ch | 1,311,425,467.6182 ch | 1,326,328,029.7502 ch | 1,341,230,591.8822 ch | 1,356,133,154.0142 ch | 1,371,035,716.1463 ch | 1,385,938,278.2783 ch | 1,400,840,840.4103 ch | 1,415,743,402.5423 ch | 1,430,645,964.6744 ch | 1,445,548,526.8064 ch | 1,460,451,088.9384 ch | 1,475,353,651.0704 ch | 1,490,256,213.2025 ch |
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 | chains | light-seconds | chains |
---|---|---|---|
1 | ≈ 14902562.132025 | 4 | ≈ 59610248.528099 |
1.5 | ≈ 22353843.198037 | 4.5 | ≈ 67061529.594111 |
2 | ≈ 29805124.264049 | 5 | ≈ 74512810.660124 |
2.5 | ≈ 37256405.330062 | 5.5 | ≈ 81964091.726136 |
3 | ≈ 44707686.396074 | 6 | ≈ 89415372.792148 |
A chain is a unit of length. It measures 66 feet, or 22 yards, or 100 links, or 4 rods (20.1168 m). There are 10 chains in a furlong, and 80 chains in one statute mile. An acre is the area of 10 square chains (that is, an area of one chain by one furlong). The chain has been used for several centuries in Britain and in some other countries influenced by British practice.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
chain | ch | ≡ 66 ft (US) ≡ 4 rods | ≈ 20.11684 m | Imperial/US |
chains | light-seconds | chains | light-seconds |
---|---|---|---|
1 | ≈ 6.710255532846E-8 | 4 | ≈ 2.6841022131384E-7 |
1.5 | ≈ 1.0065383299269E-7 | 4.5 | ≈ 3.0196149897807E-7 |
2 | ≈ 1.3420511065692E-7 | 5 | ≈ 3.355127766423E-7 |
2.5 | ≈ 1.6775638832115E-7 | 5.5 | ≈ 3.6906405430653E-7 |
3 | ≈ 2.0130766598538E-7 | 6 | ≈ 4.0261533197076E-7 |
light-seconds | chains |
---|---|
1 | ≈ 14,902,562.132025 |
6.710255532846 × 10-8 | ≈ 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 …) |