## ››Convert astronomical unit to millimicron

 astronomical unit millimicron

How many astronomical unit in 1 millimicron? The answer is 6.6845871226706E-21.
We assume you are converting between astronomical unit and millimicron.
You can view more details on each measurement unit:
astronomical unit or millimicron
The SI base unit for length is the metre.
1 metre is equal to 6.6845871226706E-12 astronomical unit, or 1000000000 millimicron.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between astronomical units and millimicrons.
Type in your own numbers in the form to convert the units!

## ››Quick conversion chart of astronomical unit to millimicron

1 astronomical unit to millimicron = 1.49597870691E+20 millimicron

2 astronomical unit to millimicron = 2.99195741382E+20 millimicron

3 astronomical unit to millimicron = 4.48793612073E+20 millimicron

4 astronomical unit to millimicron = 5.98391482764E+20 millimicron

5 astronomical unit to millimicron = 7.47989353455E+20 millimicron

6 astronomical unit to millimicron = 8.97587224146E+20 millimicron

7 astronomical unit to millimicron = 1.047185094837E+21 millimicron

8 astronomical unit to millimicron = 1.196782965528E+21 millimicron

9 astronomical unit to millimicron = 1.346380836219E+21 millimicron

10 astronomical unit to millimicron = 1.49597870691E+21 millimicron

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You can do the reverse unit conversion from millimicron to astronomical unit, or enter any two units below:

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## ››Definition: Astronomical unit

The astronomical unit (AU or au or a.u. or sometimes ua) is a unit of length. It is approximately equal to the mean distance between the Earth and Sun. The currently accepted value of the AU is 149 597 870 691 ± 30 metres (about 150 million kilometres or 93 million miles).

The symbol "ua" is recommended by the Bureau International des Poids et Mesures, but in the United States and other anglophone countries the reverse usage is more common. The International Astronomical Union recommends "au" and international standard ISO 31-1 uses "AU".

## ››Definition: Millimicron

The SI prefix "milli" represents a factor of 10-3, or in exponential notation, 1E-3.

So 1 millimicron = 10-3 microns.

The definition of a micron is as follows:

a metric unit of length equal to one millionth of a meter

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