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Convert astronomical unit to light-year

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

- scroll: formula · table · questions -

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

Astronomical unit to light-year conversion table

astronomical unit light-year
1 0.000016
2 0.000032
5 0.000079
10 0.000158
20 0.000316
50 0.000791
100 0.001581

Astronomical unit to light-year formula

To convert astronomical unit to light-year, multiply by 0.000016.

1 AU = 0.000016 ly
Example: 1 astronomical unit = 0.000016 light-year

Quick astronomical unit and light-year conversion quiz

Score: 0

20 astronomical unit equals 0.000316 light-year.

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

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

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

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

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

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