Convert millimeters (mm) to astronomical units (AU) with formulas, examples, and conversion tables.
How to Convert millimeters to astronomical units
To convert millimeters to astronomical units, divide the value by 1.496e14.
The Formula
astronomical units = millimeters ÷ 1.496e14
Key Fact
1 astronomical unit = 1.496e14 millimeters
Tip: To convert astronomical units back to millimeters, multiply by 1.496e14.
About Millimeters and Astronomical Units
What is a Millimeter?
The millimeter (mm) is a unit of length in the metric system. One millimeter equals 0.001 meters.
What is a Astronomical Unit?
The astronomical unit (AU) is a unit of length in the astronomical system. One astronomical unit equals 149600000000 meters.