Convert from light years to atomic units of length

Conversion Information

To convert from light years to atomic units of length, multiply by 1.7878188e26

1 l. y. = 1.7878188e26 a.u. of length

Converter

About the Units

light year (l. y.)

The distance light travels in one year, used for astronomical measurements.

Learn more about light years

atomic unit of length (a.u. of length)

A reference unit of length used in quantum mechanics and atomic physics.

Common Conversions

  • 1 l. y. = 1.7878188e26 a.u. of length
  • 5.5934082e-27 l. y. = 1 a.u. of length