Convert Astronomical Unit (AU) to Light Year (ly)
To convert Astronomical Unit to Light Year, multiply the value by 0.000016. For example, 1 Astronomical Unit = 0.000016 ly and 10 Astronomical Unit = 0.000158 ly. Both Astronomical Unit and Light Year are units of Length. Enter any value above for an instant, accurate result.
One Astronomical Unit equals 0.000016 ly.
Use the formula: ly = AU × 0.000016.