light-year | 1 ly | 2 ly | 3 ly | 4 ly | 5 ly | 6 ly | 7 ly | 8 ly | 9 ly | 10 ly | 11 ly | 12 ly | 13 ly | 14 ly | 15 ly | 16 ly | 17 ly | 18 ly | 19 ly | 20 ly | 21 ly | 22 ly | 23 ly | 24 ly | 25 ly | 26 ly | 27 ly | 28 ly | 29 ly | 30 ly | 31 ly | 32 ly | 33 ly | 34 ly | 35 ly | 36 ly | 37 ly | 38 ly | 39 ly | 40 ly | 41 ly | 42 ly | 43 ly | 44 ly | 45 ly | 46 ly | 47 ly | 48 ly | 49 ly | 50 ly | 51 ly | 52 ly | 53 ly | 54 ly | 55 ly | 56 ly | 57 ly | 58 ly | 59 ly | 60 ly | 61 ly | 62 ly | 63 ly | 64 ly | 65 ly | 66 ly | 67 ly | 68 ly | 69 ly | 70 ly | 71 ly | 72 ly | 73 ly | 74 ly | 75 ly | 76 ly | 77 ly | 78 ly | 79 ly | 80 ly | 81 ly | 82 ly | 83 ly | 84 ly | 85 ly | 86 ly | 87 ly | 88 ly | 89 ly | 90 ly | 91 ly | 92 ly | 93 ly | 94 ly | 95 ly | 96 ly | 97 ly | 98 ly | 99 ly | 100 ly |
finger (cloth) | 8.2769277383022 × 1016 finger (cloth) | 1.6553855476604 × 1017 finger (cloth) | 2.4830783214907 × 1017 finger (cloth) | 3.3107710953209 × 1017 finger (cloth) | 4.1384638691511 × 1017 finger (cloth) | 4.9661566429813 × 1017 finger (cloth) | 5.7938494168115 × 1017 finger (cloth) | 6.6215421906417 × 1017 finger (cloth) | 7.449234964472 × 1017 finger (cloth) | 8.2769277383022 × 1017 finger (cloth) | 9.1046205121324 × 1017 finger (cloth) | 9.9323132859626 × 1017 finger (cloth) | 1.0760006059793 × 1018 finger (cloth) | 1.1587698833623 × 1018 finger (cloth) | 1.2415391607453 × 1018 finger (cloth) | 1.3243084381283 × 1018 finger (cloth) | 1.4070777155114 × 1018 finger (cloth) | 1.4898469928944 × 1018 finger (cloth) | 1.5726162702774 × 1018 finger (cloth) | 1.6553855476604 × 1018 finger (cloth) | 1.7381548250435 × 1018 finger (cloth) | 1.8209241024265 × 1018 finger (cloth) | 1.9036933798095 × 1018 finger (cloth) | 1.9864626571925 × 1018 finger (cloth) | 2.0692319345755 × 1018 finger (cloth) | 2.1520012119586 × 1018 finger (cloth) | 2.2347704893416 × 1018 finger (cloth) | 2.3175397667246 × 1018 finger (cloth) | 2.4003090441076 × 1018 finger (cloth) | 2.4830783214907 × 1018 finger (cloth) | 2.5658475988737 × 1018 finger (cloth) | 2.6486168762567 × 1018 finger (cloth) | 2.7313861536397 × 1018 finger (cloth) | 2.8141554310227 × 1018 finger (cloth) | 2.8969247084058 × 1018 finger (cloth) | 2.9796939857888 × 1018 finger (cloth) | 3.0624632631718 × 1018 finger (cloth) | 3.1452325405548 × 1018 finger (cloth) | 3.2280018179379 × 1018 finger (cloth) | 3.3107710953209 × 1018 finger (cloth) | 3.3935403727039 × 1018 finger (cloth) | 3.4763096500869 × 1018 finger (cloth) | 3.5590789274699 × 1018 finger (cloth) | 3.641848204853 × 1018 finger (cloth) | 3.724617482236 × 1018 finger (cloth) | 3.807386759619 × 1018 finger (cloth) | 3.890156037002 × 1018 finger (cloth) | 3.9729253143851 × 1018 finger (cloth) | 4.0556945917681 × 1018 finger (cloth) | 4.1384638691511 × 1018 finger (cloth) | 4.2212331465341 × 1018 finger (cloth) | 4.3040024239171 × 1018 finger (cloth) | 4.3867717013002 × 1018 finger (cloth) | 4.4695409786832 × 1018 finger (cloth) | 4.5523102560662 × 1018 finger (cloth) | 4.6350795334492 × 1018 finger (cloth) | 4.7178488108322 × 1018 finger (cloth) | 4.8006180882153 × 1018 finger (cloth) | 4.8833873655983 × 1018 finger (cloth) | 4.9661566429813 × 1018 finger (cloth) | 5.0489259203643 × 1018 finger (cloth) | 5.1316951977474 × 1018 finger (cloth) | 5.2144644751304 × 1018 finger (cloth) | 5.2972337525134 × 1018 finger (cloth) | 5.3800030298964 × 1018 finger (cloth) | 5.4627723072794 × 1018 finger (cloth) | 5.5455415846625 × 1018 finger (cloth) | 5.6283108620455 × 1018 finger (cloth) | 5.7110801394285 × 1018 finger (cloth) | 5.7938494168115 × 1018 finger (cloth) | 5.8766186941946 × 1018 finger (cloth) | 5.9593879715776 × 1018 finger (cloth) | 6.0421572489606 × 1018 finger (cloth) | 6.1249265263436 × 1018 finger (cloth) | 6.2076958037266 × 1018 finger (cloth) | 6.2904650811097 × 1018 finger (cloth) | 6.3732343584927 × 1018 finger (cloth) | 6.4560036358757 × 1018 finger (cloth) | 6.5387729132587 × 1018 finger (cloth) | 6.6215421906418 × 1018 finger (cloth) | 6.7043114680248 × 1018 finger (cloth) | 6.7870807454078 × 1018 finger (cloth) | 6.8698500227908 × 1018 finger (cloth) | 6.9526193001738 × 1018 finger (cloth) | 7.0353885775569 × 1018 finger (cloth) | 7.1181578549399 × 1018 finger (cloth) | 7.2009271323229 × 1018 finger (cloth) | 7.2836964097059 × 1018 finger (cloth) | 7.3664656870889 × 1018 finger (cloth) | 7.449234964472 × 1018 finger (cloth) | 7.532004241855 × 1018 finger (cloth) | 7.614773519238 × 1018 finger (cloth) | 7.697542796621 × 1018 finger (cloth) | 7.7803120740041 × 1018 finger (cloth) | 7.8630813513871 × 1018 finger (cloth) | 7.9458506287701 × 1018 finger (cloth) | 8.0286199061531 × 1018 finger (cloth) | 8.1113891835361 × 1018 finger (cloth) | 8.1941584609192 × 1018 finger (cloth) | 8.2769277383022 × 1018 finger (cloth) |
The light-year is a unit of length used to express astronomical distances. It is about 9.5 quadrillion metres or 5.9 trillion miles. As defined by the International Astronomical Union (IAU), a light-year is the distance that light travels in vacuum in one Julian year (365.25 days). Because it includes the word "year", the term light-year is sometimes misinterpreted as a unit of time.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
light-year | ly | ≡ Distance light travels in vacuum in 365.25 days | = 9.4607304725808×1015 m | Science - Astronomy (Length) |
light-years | finger (cloth) | light-years | finger (cloth) |
---|---|---|---|
1 | = 8.2769277383022E+16 | 4 | = 3.3107710953209E+17 |
1.5 | = 1.2415391607453E+17 | 4.5 | = 3.724617482236E+17 |
2 | = 1.6553855476604E+17 | 5 | = 4.1384638691511E+17 |
2.5 | = 2.0692319345755E+17 | 5.5 | = 4.5523102560662E+17 |
3 | = 2.4830783214907E+17 | 6 | = 4.9661566429813E+17 |
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-years | finger (cloth) | light-years |
---|---|---|---|
1 | = 1.2081777582429E-17 | 4 | = 4.8327110329714E-17 |
1.5 | = 1.8122666373643E-17 | 4.5 | = 5.4367999120928E-17 |
2 | = 2.4163555164857E-17 | 5 | = 6.0408887912143E-17 |
2.5 | = 3.0204443956071E-17 | 5.5 | = 6.6449776703357E-17 |
3 | = 3.6245332747286E-17 | 6 | = 7.2490665494571E-17 |
light-years | finger (cloth) |
---|---|
1 | = 8.2769277383022 × 1016 |
1.2081777582429 × 10-17 | = 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 …) |