/convert/au-to-km/ Convert astronomical units to km instantly with a reference conversion table. article astronomical units to km Converter — 247QuickTools
📏 Length

astronomical units to km Converter

Convert astronomical units to km instantly with a reference conversion table.

Quick answer: To convert astronomical units to km, multiply by 149597871. For example, 1 astronomical units = 149597871 km. Use the calculator below for any value.
astronomical units to km
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Common conversions
astronomical units km
Formula:

How to convert astronomical units to km

1

Enter your value

Type the number of astronomical units you want to convert into the left box. The result in km appears instantly in the right box. You can also type into the right box to convert in the other direction.

2

Use the swap button

Click the ⇄ Swap button to reverse the conversion — km to astronomical units. Your current value carries across so you don't have to re-enter anything.

3

About astronomical units and km

astronomical units and km are common length measurements.

📊 Common conversions at a glance
astronomical units km
1e-07 14.96
0.001 1.496e+05
1 1.496e+08
1.5 2.244e+08
5 7.48e+08
30 4.488e+09
Reviewed for 2026. astronomical units ↔ km conversion factor verified against published reference data. Built by a UK-based qualified primary teacher and FA Level 2 coach as part of 247QuickTools' free utility-tools project.

Frequently asked questions

How do I convert astronomical units to km?

To convert astronomical units to km, multiply by 149597871. Or use the calculator above for instant results.

How many km are in 1 astronomical units?

1 astronomical units equals 149597871 km.

Is the astronomical units to km converter free?

Yes, the astronomical units to km converter is completely free with no sign-up required, no downloads, and it works offline once the page has loaded.