Astronomical Units to Kilometers Converter - Free, Instant, In Your Browser
Enter a value in Astronomical Units to convert it to Kilometers.
How to use ASTRONOMICAL-UNIT → KM
- 1Paste your text or data into the input box above.
- 2ASTRONOMICAL-UNIT → KM runs instantly, right in your browser.
- 3Copy the result or use it directly.
Your file is processed in your browser and is never uploaded.
Frequently Asked Questions
What's the formula?
1 AU = 149,597,870.7 km exactly, by the IAU's official definition (approximately the Earth-Sun distance).
Is my data sent to a server?
No - everything runs entirely in your browser with JavaScript. Nothing is uploaded.