Common Converters

Convert Light Years to Astronomical Units

Use our accurate converter to change light years into astronomical units. This tool is simple to use and works instantly.

How to Calculate

To change light years to astronomical units, you just need to know the conversion factor.

Rule: 1 Light Years = 63,241.0770842663 Astronomical Units

Light Years to Astronomical Units
Pre-defined calculator for direct light years to astronomical units conversion.
Light Years (ly)
0
Astronomical Units (AU)
Formula: 1 Light = 63,241.07708427 Astronomical

Unit Information

About Light Years

Definition: A light year is the distance light travels in one year.

History: The idea was first used in the 1800s to measure how far away stars are.

Where it is used: Used in space science to talk about the huge distances between stars.

Light Years to Astronomical Units Conversion Table

Light Years [ly]Astronomical Units [au]
0.01 ly632.4107708427 au
0.1 ly6,324.1077084266 au
1 ly63,241.0770842663 au
2 ly126,482.1541685326 au
3 ly189,723.2312527988 au
5 ly316,205.3854213314 au
10 ly632,410.7708426628 au
20 ly1,264,821.5416853256 au
50 ly3,162,053.854213314 au
100 ly6,324,107.708426628 au
1000 ly63,241,077.08426628 au

How to Convert Light Years to Astronomical Units

Calculation: To convert light years to astronomical units, multiply the value by the conversion factor (63,241.0770842663).

Example: convert 15 ly to au:
15 ly = 15 × 63,241.0770842663 au = 948,616.1562639943 au

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