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Convert astronomical units to light-years. Completely free.

1 astronomical unit is 0.000015812507 light-years. Type any value below for the exact answer. It all happens in this tab, with no account and no paid version.

Length

Astronomical units to light-years converter

1 astronomical unit0.000015812507 light-years

Formulalight-years = astronomical units × 0.000015812507

How to convert astronomical units to light-years

  1. Type a value, or a question like the one already filled in.
  2. The result appears as you type, alongside every related unit.
  3. Copy it.

Length chart

Astronomical unitsLight-years
10.000015812507
20.000031625015
50.000079062537
100.00015812507
250.00039531269
500.00079062537
1000.0015812507
1,0000.015812507

Questions

Is this astronomical units to light-years converter really free?

Yes, completely. Every tool and every format is free, and there's no paid version, account, watermark or daily limit.

Does anything get sent to a server?

No. It all runs in your browser, so it keeps working once the page has loaded, even offline.

How do I convert astronomical units to light-years?

Use light-years = astronomical units × 0.000015812507. 1 astronomical unit is 0.000015812507 light-years. Type any value in the converter above, or a plain question like "5 au in ly".

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