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Convert light-year to astronomical unit

Here you can quickly calculate how many astronomical unit fit in one light-year.

- scroll: formula · table · questions -

  • 1 ly = 63241.077084 AU
  • 1 AU = 0.000016 ly

Light-year to astronomical unit conversion table

light-year astronomical unit
1 63241.077084
2 126482.154169
5 316205.385421
10 632410.770843
20 1264821.541685
50 3162053.854213
100 6324107.708427

Formula to convert light-year to astronomical unit

To convert light-year to astronomical unit, multiply by 63241.077084.

1 ly = 63241.077084 AU
Example: 1 light-year = 63241.077084 astronomical unit

Quick light-year to/from astronomical unit conversion quiz

Score: 0

50 light-year equals 3.16e+5 astronomical unit.

Correct answer: 50 light-year = 3.16e+6 astronomical unit.

20 light-year equals 1.26e+7 astronomical unit.

Correct answer: 20 light-year = 1.26e+6 astronomical unit.

20 astronomical unit equals 0.00316 light-year.

Correct answer: 20 astronomical unit = 0.000316 light-year.

20 light-year equals 6.32e+6 astronomical unit.

Correct answer: 20 light-year = 1.26e+6 astronomical unit.

5 light-year equals 3.16e+5 astronomical unit.

Correct answer: 5 light-year = 3.16e+5 astronomical unit.

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