| 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 |
| ell | 8.2769277383022 × 1015 ell | 1.6553855476604 × 1016 ell | 2.4830783214907 × 1016 ell | 3.3107710953209 × 1016 ell | 4.1384638691511 × 1016 ell | 4.9661566429813 × 1016 ell | 5.7938494168115 × 1016 ell | 6.6215421906417 × 1016 ell | 7.449234964472 × 1016 ell | 8.2769277383022 × 1016 ell | 9.1046205121324 × 1016 ell | 9.9323132859626 × 1016 ell | 1.0760006059793 × 1017 ell | 1.1587698833623 × 1017 ell | 1.2415391607453 × 1017 ell | 1.3243084381283 × 1017 ell | 1.4070777155114 × 1017 ell | 1.4898469928944 × 1017 ell | 1.5726162702774 × 1017 ell | 1.6553855476604 × 1017 ell | 1.7381548250435 × 1017 ell | 1.8209241024265 × 1017 ell | 1.9036933798095 × 1017 ell | 1.9864626571925 × 1017 ell | 2.0692319345755 × 1017 ell | 2.1520012119586 × 1017 ell | 2.2347704893416 × 1017 ell | 2.3175397667246 × 1017 ell | 2.4003090441076 × 1017 ell | 2.4830783214907 × 1017 ell | 2.5658475988737 × 1017 ell | 2.6486168762567 × 1017 ell | 2.7313861536397 × 1017 ell | 2.8141554310227 × 1017 ell | 2.8969247084058 × 1017 ell | 2.9796939857888 × 1017 ell | 3.0624632631718 × 1017 ell | 3.1452325405548 × 1017 ell | 3.2280018179379 × 1017 ell | 3.3107710953209 × 1017 ell | 3.3935403727039 × 1017 ell | 3.4763096500869 × 1017 ell | 3.5590789274699 × 1017 ell | 3.641848204853 × 1017 ell | 3.724617482236 × 1017 ell | 3.807386759619 × 1017 ell | 3.890156037002 × 1017 ell | 3.972925314385 × 1017 ell | 4.0556945917681 × 1017 ell | 4.1384638691511 × 1017 ell | 4.2212331465341 × 1017 ell | 4.3040024239171 × 1017 ell | 4.3867717013002 × 1017 ell | 4.4695409786832 × 1017 ell | 4.5523102560662 × 1017 ell | 4.6350795334492 × 1017 ell | 4.7178488108322 × 1017 ell | 4.8006180882153 × 1017 ell | 4.8833873655983 × 1017 ell | 4.9661566429813 × 1017 ell | 5.0489259203643 × 1017 ell | 5.1316951977474 × 1017 ell | 5.2144644751304 × 1017 ell | 5.2972337525134 × 1017 ell | 5.3800030298964 × 1017 ell | 5.4627723072794 × 1017 ell | 5.5455415846625 × 1017 ell | 5.6283108620455 × 1017 ell | 5.7110801394285 × 1017 ell | 5.7938494168115 × 1017 ell | 5.8766186941946 × 1017 ell | 5.9593879715776 × 1017 ell | 6.0421572489606 × 1017 ell | 6.1249265263436 × 1017 ell | 6.2076958037266 × 1017 ell | 6.2904650811097 × 1017 ell | 6.3732343584927 × 1017 ell | 6.4560036358757 × 1017 ell | 6.5387729132587 × 1017 ell | 6.6215421906417 × 1017 ell | 6.7043114680248 × 1017 ell | 6.7870807454078 × 1017 ell | 6.8698500227908 × 1017 ell | 6.9526193001738 × 1017 ell | 7.0353885775569 × 1017 ell | 7.1181578549399 × 1017 ell | 7.2009271323229 × 1017 ell | 7.2836964097059 × 1017 ell | 7.3664656870889 × 1017 ell | 7.449234964472 × 1017 ell | 7.532004241855 × 1017 ell | 7.614773519238 × 1017 ell | 7.697542796621 × 1017 ell | 7.7803120740041 × 1017 ell | 7.8630813513871 × 1017 ell | 7.9458506287701 × 1017 ell | 8.0286199061531 × 1017 ell | 8.1113891835361 × 1017 ell | 8.1941584609192 × 1017 ell | 8.2769277383022 × 1017 ell |
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.
| 1 light-years = 8.2769277383022E+15 ell | 4 light-years = 3.3107710953209E+16 ell |
| 1.5 light-years = 1.2415391607453E+16 ell | 4.5 light-years = 3.724617482236E+16 ell |
| 2 light-years = 1.6553855476604E+16 ell | 5 light-years = 4.1384638691511E+16 ell |
| 2.5 light-years = 2.0692319345755E+16 ell | 5.5 light-years = 4.5523102560662E+16 ell |
| 3 light-years = 2.4830783214907E+16 ell | 6 light-years = 4.9661566429813E+16 ell |
An ell (from Proto-Germanic *alinō, cognate with Latin ulna) is a unit of measurement, originally a cubit, i.e., approximating the length of a man's arm from the elbow ("elbow" means the bend or bow of the ell or arm) to the tip of the middle finger, or about 18 inches (457 mm); in later usage, any of several longer units.
| 1 ell = 1.2081777582429E-16 light-years | 4 ell = 4.8327110329714E-16 light-years |
| 1.5 ell = 1.8122666373643E-16 light-years | 4.5 ell = 5.4367999120928E-16 light-years |
| 2 ell = 2.4163555164857E-16 light-years | 5 ell = 6.0408887912143E-16 light-years |
| 2.5 ell = 3.0204443956071E-16 light-years | 5.5 ell = 6.6449776703357E-16 light-years |
| 3 ell = 3.6245332747286E-16 light-years | 6 ell = 7.2490665494571E-16 light-years |
| 1 light-years = 8.2769277383022 × 1015 ell |
| 1 ell = 1.2081777582429 × 10-16 light-years |