How many astronomical unit in 1 nanometer?
The answer is 6.6845871226706E-21.

We assume you are converting between **astronomical unit** and **nanometre**.

You can view more details on each measurement unit:

astronomical unit or
nanometer

The SI base unit for **length** is the metre.

1 metre is equal to 6.6845871226706E-12 astronomical unit, or 1000000000 nanometer.

Note that rounding errors may occur, so always check the results.

Use this page to learn how to convert between astronomical units and nanometres.

Type in your own numbers in the form to convert the units!

1 astronomical unit to nanometer = 1.49597870691E+20 nanometer

2 astronomical unit to nanometer = 2.99195741382E+20 nanometer

3 astronomical unit to nanometer = 4.48793612073E+20 nanometer

4 astronomical unit to nanometer = 5.98391482764E+20 nanometer

5 astronomical unit to nanometer = 7.47989353455E+20 nanometer

6 astronomical unit to nanometer = 8.97587224146E+20 nanometer

7 astronomical unit to nanometer = 1.047185094837E+21 nanometer

8 astronomical unit to nanometer = 1.196782965528E+21 nanometer

9 astronomical unit to nanometer = 1.346380836219E+21 nanometer

10 astronomical unit to nanometer = 1.49597870691E+21 nanometer

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

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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".

The SI prefix "nano" represents a factor of
10^{-9}, or in exponential notation, 1E-9.

So 1 nanometre = 10^{-9} metre.

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