Light-years to Astronomical units converter
ly to au conversion table
| ly | au |
|---|---|
| 1 | 63241.07708 |
| 2 | 126482.15417 |
| 3 | 189723.23125 |
| 4 | 252964.30834 |
| 5 | 316205.38542 |
| 6 | 379446.46251 |
| 7 | 442687.53959 |
| 8 | 505928.61667 |
| 9 | 569169.69376 |
| 10 | 632410.77084 |
| 11 | 695651.84793 |
| 12 | 758892.92501 |
| 13 | 822134.0021 |
| 14 | 885375.07918 |
| 15 | 948616.15626 |
| 16 | 1011857.23335 |
| 17 | 1075098.31043 |
| 18 | 1138339.38752 |
| 19 | 1201580.4646 |
| 20 | 1264821.54169 |
| 21 | 1328062.61877 |
| 22 | 1391303.69585 |
| 23 | 1454544.77294 |
| 24 | 1517785.85002 |
| 25 | 1581026.92711 |
| 26 | 1644268.00419 |
| 27 | 1707509.08128 |
| 28 | 1770750.15836 |
| 29 | 1833991.23544 |
| 30 | 1897232.31253 |
| 31 | 1960473.38961 |
| 32 | 2023714.4667 |
| 33 | 2086955.54378 |
| 34 | 2150196.62087 |
| 35 | 2213437.69795 |
| 36 | 2276678.77503 |
| 37 | 2339919.85212 |
| 38 | 2403160.9292 |
| 39 | 2466402.00629 |
| 40 | 2529643.08337 |
| 41 | 2592884.16045 |
| 42 | 2656125.23754 |
| 43 | 2719366.31462 |
| 44 | 2782607.39171 |
| 45 | 2845848.46879 |
| 46 | 2909089.54588 |
| 47 | 2972330.62296 |
| 48 | 3035571.70004 |
| 49 | 3098812.77713 |
| 50 | 3162053.85421 |
| 51 | 3225294.9313 |
| 52 | 3288536.00838 |
| 53 | 3351777.08547 |
| 54 | 3415018.16255 |
| 55 | 3478259.23963 |
| 56 | 3541500.31672 |
| 57 | 3604741.3938 |
| 58 | 3667982.47089 |
| 59 | 3731223.54797 |
| 60 | 3794464.62506 |
| 61 | 3857705.70214 |
| 62 | 3920946.77922 |
| 63 | 3984187.85631 |
| 64 | 4047428.93339 |
| 65 | 4110670.01048 |
| 66 | 4173911.08756 |
| 67 | 4237152.16465 |
| 68 | 4300393.24173 |
| 69 | 4363634.31881 |
| 70 | 4426875.3959 |
| 71 | 4490116.47298 |
| 72 | 4553357.55007 |
| 73 | 4616598.62715 |
| 74 | 4679839.70424 |
| 75 | 4743080.78132 |
| 76 | 4806321.8584 |
| 77 | 4869562.93549 |
| 78 | 4932804.01257 |
| 79 | 4996045.08966 |
| 80 | 5059286.16674 |
| 81 | 5122527.24383 |
| 82 | 5185768.32091 |
| 83 | 5249009.39799 |
| 84 | 5312250.47508 |
| 85 | 5375491.55216 |
| 86 | 5438732.62925 |
| 87 | 5501973.70633 |
| 88 | 5565214.78342 |
| 89 | 5628455.8605 |
| 90 | 5691696.93758 |
| 91 | 5754938.01467 |
| 92 | 5818179.09175 |
| 93 | 5881420.16884 |
| 94 | 5944661.24592 |
| 95 | 6007902.32301 |
| 96 | 6071143.40009 |
| 97 | 6134384.47717 |
| 98 | 6197625.55426 |
| 99 | 6260866.63134 |
| 100 | 6324107.70843 |
| 101 | 6387348.78551 |
| 102 | 6450589.8626 |
| 103 | 6513830.93968 |
| 104 | 6577072.01676 |
| 105 | 6640313.09385 |
| 106 | 6703554.17093 |
| 107 | 6766795.24802 |
| 108 | 6830036.3251 |
To convert light-years to astronomical units, enter the value in the first field. The result in astronomical units is calculated automatically using the exact conversion factor.
1 ly ≈ 63241.0770843 au
1 au ≈ 0.0000158125074098 ly
Formula: au ≈ ly × 63241.0770843
ly ≈ au × 0.0000158125074098
Definitions: 1 ly = 9.4607304725808 × 1015 m; 1 au = 149597870700 m
The light-year (ly) is the distance light travels in a vacuum in one Julian year (365.25 days), about 9.46 trillion kilometers. It is used for distances between stars and galaxies; the nearest stars beyond the Sun are roughly 4 light-years away.
The astronomical unit (au) is defined as exactly 149,597,870,700 meters and is close to the average distance from Earth to the Sun. It is used for distances inside the solar system, such as planetary orbits.
See the conversion table with commonly used values, handy for quick reference or study.