Convert 1 Astronomical Unit to Light Years

Convert between Astronomical Unit and Light Years with step-by-step calculation. 1 Astronomical Unit = 1.581 × 10⁻⁵ Light Years.

Astronomical Unit to Light Years

From Astronomical Unit

To Light Years

Answer

1 au = 1.581 × 10⁻⁵ light years

Step 1 — Conversion factor

1 light year ≈ 63241 au

To convert au to light years, divide by 63241.

Step 2 — Calculate

1 au × 1 ly63241 au

≈ 1 ÷ 63241

= 1.581 × 10⁻⁵ ly

1 au = 1.581 × 10⁻⁵ light years

Astronomical Unit to Light Years conversion table

Astronomical Unit	Light Years
1	0
2	0
5	0.0001
10	0.0002
25	0.0004
50	0.0008
100	0.0016
250	0.004
500	0.0079
1000	0.0158

How to Convert Astronomical Unit to Light Years

To convert Astronomical Unit to Light Years, use the conversion factor: 1 Astronomical Unit = 1.581 × 10⁻⁵ Light Years. Enter any value above and click Convert to see the step-by-step calculation.

Formula

Multiply or divide the value by the conversion factor to get the result. The calculator shows every step of the arithmetic.

Frequently Asked Questions

How many Light Years are in 1 Astronomical Unit?

1 Astronomical Unit = 1.581 × 10⁻⁵ Light Years.

What category is this conversion?

This is a Length conversion.

Complete list of Astronomical Unit conversions