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Light-years to Astronomical units Conversion

Light-year to astronomical unit conversion allow you make a conversion between light-year and astronomical unit easily. You can find the tool in the following.

Length Conversion

to

input
= 63,239.72634511
= 632.397 × 102
= 632.397E2
= 632.397e2
= 94,859.58951767
= 948.596 × 102
= 948.596E2
= 948.596e2
= 126,479.45269022
= 1264.79 × 102
= 1264.79E2
= 1264.79e2
= 158,099.31586278
= 1580.99 × 102
= 1580.99E2
= 1580.99e2
= 189,719.17903534
= 1897.19 × 102
= 1897.19E2
= 1897.19e2

Quick Look: light-years to astronomical units

light-year1 ly2 ly3 ly4 ly5 ly6 ly7 ly8 ly9 ly10 ly11 ly12 ly13 ly14 ly15 ly16 ly17 ly18 ly19 ly20 ly21 ly22 ly23 ly24 ly25 ly26 ly27 ly28 ly29 ly30 ly31 ly32 ly33 ly34 ly35 ly36 ly37 ly38 ly39 ly40 ly41 ly42 ly43 ly44 ly45 ly46 ly47 ly48 ly49 ly50 ly51 ly52 ly53 ly54 ly55 ly56 ly57 ly58 ly59 ly60 ly61 ly62 ly63 ly64 ly65 ly66 ly67 ly68 ly69 ly70 ly71 ly72 ly73 ly74 ly75 ly76 ly77 ly78 ly79 ly80 ly81 ly82 ly83 ly84 ly85 ly86 ly87 ly88 ly89 ly90 ly91 ly92 ly93 ly94 ly95 ly96 ly97 ly98 ly99 ly100 ly
astronomical unit63,239.7263451 AU126,479.4526902 AU189,719.1790353 AU252,958.9053805 AU316,198.6317256 AU379,438.3580707 AU442,678.0844158 AU505,917.8107609 AU569,157.5371060 AU632,397.2634511 AU695,636.9897962 AU758,876.7161413 AU822,116.4424865 AU885,356.1688316 AU948,595.8951767 AU1,011,835.6215218 AU1,075,075.3478669 AU1,138,315.074212 AU1,201,554.8005571 AU1,264,794.5269022 AU1,328,034.2532473 AU1,391,273.9795925 AU1,454,513.7059376 AU1,517,753.4322827 AU1,580,993.1586278 AU1,644,232.8849729 AU1,707,472.611318 AU1,770,712.3376631 AU1,833,952.0640082 AU1,897,191.7903534 AU1,960,431.5166985 AU2,023,671.2430436 AU2,086,910.9693887 AU2,150,150.6957338 AU2,213,390.4220789 AU2,276,630.148424 AU2,339,869.8747691 AU2,403,109.6011142 AU2,466,349.3274594 AU2,529,589.0538045 AU2,592,828.7801496 AU2,656,068.5064947 AU2,719,308.2328398 AU2,782,547.9591849 AU2,845,787.68553 AU2,909,027.4118751 AU2,972,267.1382202 AU3,035,506.8645654 AU3,098,746.5909105 AU3,161,986.3172556 AU3,225,226.0436007 AU3,288,465.7699458 AU3,351,705.4962909 AU3,414,945.222636 AU3,478,184.9489811 AU3,541,424.6753263 AU3,604,664.4016714 AU3,667,904.1280165 AU3,731,143.8543616 AU3,794,383.5807067 AU3,857,623.3070518 AU3,920,863.0333969 AU3,984,102.759742 AU4,047,342.4860871 AU4,110,582.2124323 AU4,173,821.9387774 AU4,237,061.6651225 AU4,300,301.3914676 AU4,363,541.1178127 AU4,426,780.8441578 AU4,490,020.5705029 AU4,553,260.296848 AU4,616,500.0231932 AU4,679,739.7495383 AU4,742,979.4758834 AU4,806,219.2022285 AU4,869,458.9285736 AU4,932,698.6549187 AU4,995,938.3812638 AU5,059,178.1076089 AU5,122,417.833954 AU5,185,657.5602992 AU5,248,897.2866443 AU5,312,137.0129894 AU5,375,376.7393345 AU5,438,616.4656796 AU5,501,856.1920247 AU5,565,095.9183698 AU5,628,335.6447149 AU5,691,575.3710601 AU5,754,815.0974052 AU5,818,054.8237503 AU5,881,294.5500954 AU5,944,534.2764405 AU6,007,774.0027856 AU6,071,013.7291307 AU6,134,253.4554758 AU6,197,493.1818209 AU6,260,732.9081661 AU6,323,972.6345112 AU

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 unitSymbolDefinitionRelation to SI unitsUnit System
light-yearly

≡ Distance light travels in vacuum in 365.25 days

= 9.4607304725808×1015 m

Science - Astronomy (Length)

conversion table

light-yearsastronomical unitslight-yearsastronomical units
1= 63239.7263451124= 252958.90538045
1.5= 94859.5895176684.5= 284578.768553
2= 126479.452690225= 316198.63172556
2.5= 158099.315862785.5= 347818.49489811
3= 189719.179035346= 379438.35807067

The astronomical unit (symbol: au or ua) is a unit of length, roughly the distance from Earth to the Sun. However, that distance varies as Earth orbits the Sun, from a maximum (aphelion) to a minimum (perihelion) and back again once a year. Originally conceived as the average of Earth's aphelion and perihelion, it is now defined as exactly 149 597 870 700 metres (about 150 million kilometres, or 93 million miles). The astronomical unit is used primarily as a convenient yardstick for measuring distances within the Solar System or around other stars. However, it is also a fundamental component in the definition of another unit of astronomical length, the parsec.

Name of unitSymbolDefinitionRelation to SI unitsUnit System
astronomical unitAU

≡ 149 597 870 700 m ≈ Distance from Earth to Sun

≡ 149 597 870 700 m

Science - Astronomy (Length)

conversion table

astronomical unitslight-yearsastronomical unitslight-years
1= 1.5812845149626E-54= 6.3251380598506E-5
1.5= 2.371926772444E-54.5= 7.1157803173319E-5
2= 3.1625690299253E-55= 7.9064225748132E-5
2.5= 3.9532112874066E-55.5= 8.6970648322945E-5
3= 4.7438535448879E-56= 9.4877070897758E-5

Conversion table

light-yearsastronomical units
1= 63,239.7263451
1.5812845149626 × 10-5= 1

Legend

SymbolDefinition
exactly equal
approximately equal to
=equal to
digitsindicates that digits repeat infinitely (e.g. 8.294 369 corresponds to 8.294 369 369 369 369 …)