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Free Length Converter

Millimeter to astronomical unit.

One millimeter equals 6.684587e-15 astronomical unit. Use this converter for quick, accurate mm to au conversions.

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Conversion formula.

1 mm = 6.684587e-15 au

To convert millimeter to astronomical unit, multiply the value in mm by 6.684587e-15.

Quick examples

  • 1 mm = 6.684587e-15 au
  • 5 mm = 3.342294e-14 au
  • 10 mm = 6.684587e-14 au
  • 100 mm = 6.684587e-13 au

Millimeter to Astronomical Unit conversion table.

Millimeter (mm)Astronomical Unit (au)
16.684587e-15
21.336917e-14
32.005376e-14
42.673835e-14
53.342294e-14
64.010752e-14
74.679211e-14
85.34767e-14
96.016128e-14
106.684587e-14
117.353046e-14
128.021505e-14
138.689963e-14
149.358422e-14
151.002688e-13
161.069534e-13
171.13638e-13
181.203226e-13
191.270072e-13
201.336917e-13
Convert the other way: Astronomical Unit to Millimeter

Related conversions.

Millimeter to CentimeterMillimeter to DecimeterMillimeter to MeterMillimeter to KilometerMillimeter to MicrometerMillimeter to Nanometer

More Millimeter conversions.

mm → cmmm → dmmm → mmm → kmmm → μmmm → nmmm → inmm → ft

Frequently asked questions.

How many astronomical unit are in a millimeter?
One millimeter equals 6.684587e-15 astronomical unit (au).
How do I convert mm to au?
Multiply the value in mm by 6.684587e-15. For example, 10 mm = 6.684587e-14 au.
Is this conversion exact?
Yes. This converter uses the internationally defined factor: 1 mm = 6.684587e-15 au.