Convert nanometers to astronomical units
1 nm = 0.00000000000000000000668458712227 au — exactly. Both units are defined against the SI, so this factor is a fraction, not an approximation.
6.68458712227e-21au
As a fraction: 1/149597870700000000000
1 nm = 0.00000000000000000000668458712227 au
How to convert nanometers to astronomical units
Multiply the number of nanometers by 0.00000000000000000000668458712227 to get astronomical units.
Astronomical unit: Fixed at exactly 149 597 870 700 m by the IAU in 2012.
Nanometer to Astronomical unit conversion table
| Nanometers (nm) | Astronomical units (au) |
|---|---|
| 1 nm | 6.6845871e-21 |
| 2 nm | 1.3369174e-20 |
| 3 nm | 2.0053761e-20 |
| 5 nm | 3.3422936e-20 |
| 10 nm | 6.6845871e-20 |
| 20 nm | 1.3369174e-19 |
| 25 nm | 1.6711468e-19 |
| 50 nm | 3.3422936e-19 |
| 100 nm | 6.6845871e-19 |
| 250 nm | 1.6711468e-18 |
| 500 nm | 3.3422936e-18 |
| 1000 nm | 6.6845871e-18 |
Astronomical unit to Nanometer conversion table
| Astronomical units (au) | Nanometers (nm) |
|---|---|
| 1 au | 1.4959787e+20 |
| 2 au | 2.9919574e+20 |
| 3 au | 4.4879361e+20 |
| 5 au | 7.4798935e+20 |
| 10 au | 1.4959787e+21 |
| 20 au | 2.9919574e+21 |
| 25 au | 3.7399468e+21 |
| 50 au | 7.4798935e+21 |
| 100 au | 1.4959787e+22 |
| 250 au | 3.7399468e+22 |
| 500 au | 7.4798935e+22 |
| 1000 au | 1.4959787e+23 |
Frequently asked
How many astronomical units are in a nanometer?
One nanometer equals 6.684587122e-21 astronomical units (nm → au). That figure is exact, not rounded.
How do you convert nanometers to astronomical units?
Multiply the number of nanometers by 0.00000000000000000000668458712227 to get astronomical units.
What is 1 au in nanometers?
One astronomical unit is 1.495978707e+20 nanometers.
What is 10 nm in au?
10 nm = 6.6845871e-20 au.
What exactly is a astronomical unit?
Fixed at exactly 149 597 870 700 m by the IAU in 2012.