Convert Light Year (ly) to Astronomical Unit (AU)
To convert Light Year to Astronomical Unit, multiply the value by 63,240.873388. For example, 1 Light Year = 63,240.873388 AU and 10 Light Year = 632,408.733876 AU. Both Light Year and Astronomical Unit are units of Length. Enter any value above for an instant, accurate result.
One Light Year equals 63,240.873388 AU.
Use the formula: AU = ly × 63,240.873388.