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.
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Show this value in all 50 length units
- Gigameters Gm 1e-18
- Megameters Mm 1e-15
- Kilometers km 1e-12
- Hectometers hm 1e-11
- Decameters dam 1e-10
- Meters m 1e-9
- Decimeters dm 1e-8
- Centimeters cm 0.000 000 1
- Millimeters mm 0.000 001
- Micrometers µm 0.001
- Nanometers nm 1
- Picometers pm 1000
- Femtometers fm 1 000 000
- Inches in 3.93700787402e-8
- Feet ft 3.28083989501e-9
- Yards yd 1.09361329834e-9
- Miles mi 6.21371192237e-13
- Nautical miles nmi 5.39956803456e-13
- Thous thou 0.000 039 370 078 740 2
- Hands hh 9.84251968504e-9
- Links li 4.9709695379e-9
- Spans span 4.37445319335e-9
- Cubits cubit 2.18722659668e-9
- Ells ell 8.7489063867e-10
- Fathoms ftm 5.46806649169e-10
- Rods rd 1.98838781516e-10
- Chains ch 4.9709695379e-11
- Furlongs fur 4.9709695379e-12
- Leagues lea 2.07123730746e-13
- Barleycorns barleycorn 0.000 000 118 110 236 22
- US survey feet ft (US) 3.28083333333e-9
- US survey miles mi (US) 6.21369949495e-13
- Ångströms Å 10
- Microns µ 0.001
- Bohr radiuss a₀ 18.897 261 259 1
- Planck lengths ℓₚ 6.18714249917e+25
- Astronomical units au 6.68458712227e-21
- Light-years ly 1.05700083402e-25
- Light-seconds ls 3.33564095198e-18
- Light-minutes lmin 5.55940158664e-20
- Parsecs pc 3.24077928944e-26
- Kiloparsecs kpc 3.24077928944e-29
- Megaparsecs Mpc 3.24077928944e-32
- Solar radiuss R☉ 1.43740117867e-18
- Earth radiuss R🜨 1.56961230576e-16
- Point (DTP)s pt 0.000 002 834 645 669 29
- Picas pc 0.000 000 236 220 472 441
- Scandinavian miles mil 1e-13
- Versts вер 9.37382827147e-13
- Lis 里 2e-12
Every row is Nanometer (nm) converted through the meter, in exact rational arithmetic.
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.