Astronomical unit to millimeters (AU to mm) converter

You can enter a value in either the astronomical unit (AU) or millimeters (mm) input fields. For an understanding of the conversion process, we include algebraic formulas.

See conversions to common Length units and easily switch Length units in the two tabbed section below. Use the search bar above to find additional conversions.

Tip: Click the "Swap" button to switch from converting astronomical unit to millimeters to millimeters to astronomical unit.

astronomical unit (AU)

 

millimeters (mm)

 
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1 AU = 1.49598073E+14 mm 1 mm = 0 AU

Algebraic Steps / Dimensional Analysis Formula
AU * 5889679948400 in
1 AU		 * 2.54 cm
1 in		 * 10 mm
1 cm		 = mm

Direct Conversion Formula
AU * 1.49598073E+14 mm
1 AU		 = mm

If you would like to switch between Length units, select from the tables below

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