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Convert Micron to Astronomical Unit

1 micron = 6.6845871e-18 astronomical units (µm to AU).

A micron is smaller than a astronomical unit — it takes 1.49598e+17 of them to make a single astronomical unit. Both units describe length, and the reverse is just as easy — one astronomical unit equals 1.49598e+17 microns. The converter above does this in real time, and the reference chart lists the values that come up most often.

6.6845871e-18

1 µm = 6.6845871e-18 AU

How to convert Microns to Astronomical Units

Multiply the micron value by 6.68459e-18 to get astronomical units.

Example: 10 microns = 6.68459e-17 astronomical units.

Micron to Astronomical Unit Conversion Chart

MicronsAstronomical Units
1 µm6.6845871e-18 AU
2 µm1.3369174e-17 AU
3 µm2.0053761e-17 AU
5 µm3.3422936e-17 AU
10 µm6.6845871e-17 AU
20 µm1.3369174e-16 AU
25 µm1.6711468e-16 AU
50 µm3.3422936e-16 AU
100 µm6.6845871e-16 AU
1000 µm6.6845871e-15 AU

Frequently Asked Questions

How many astronomical units are in a micron?
There are 6.6845871e-18 astronomical units in 1 micron.
How do you convert microns to astronomical units?
Multiply the micron value by 6.68459e-18 to get astronomical units.
What is 5 microns in astronomical units?
5 microns equals 3.3422936e-17 astronomical units.
What is 100 microns in astronomical units?
100 microns equals 6.6845871e-16 astronomical units.
What is 1 astronomical unit in microns?
1 astronomical unit equals 1.4959787e+17 microns.
Is this micron to astronomical unit converter free?
Yes. The converter is free, needs no sign-up, and runs entirely in your browser — the values you enter never leave your device.

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