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Convert kilometers to astronomical units. Completely free.
1 kilometer is 6.68459e-9 astronomical units. Type any value below for the exact answer. It all happens in this tab, with no account and no paid version.
Kilometers to astronomical units converter
1 kilometer=6.68459e-9 astronomical units
Formulaastronomical units = kilometers × 6.68459e-9
How to convert kilometers to astronomical units
- Type a value, or a question like the one already filled in.
- The result appears as you type, alongside every related unit.
- Copy it.
Length chart
| Kilometers | Astronomical units |
|---|---|
| 1 | 6.68459e-9 |
| 2 | 1.33692e-8 |
| 5 | 3.34229e-8 |
| 10 | 6.68459e-8 |
| 25 | 1.67115e-7 |
| 50 | 3.34229e-7 |
| 100 | 6.68459e-7 |
| 1,000 | 0.0000066845871 |
Questions
Is this kilometers to astronomical units 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 kilometers to astronomical units?
Use astronomical units = kilometers × 6.68459e-9. 1 kilometer is 6.68459e-9 astronomical units. Type any value in the converter above, or a plain question like "5 km in au".
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