Convert Angstrom to Astronomical Unit
Type the number of angstroms that you wish to convert to astronomical units.
How to Convert Angstroms to Astronomical Units
The angstrom and astronomical unit are both units of length. By definition, 1 astronomical unit equals exactly 1.496e21 angstroms. This means to convert angstroms to astronomical units, you divide by 1.496e21.
Formula
Step-by-Step Example
Convert 5 Å to astronomical units:
We need to convert angstroms to astronomical units
Since 1 AU = 1.496e21 Å, divide by 1.496e21
5 ÷ 1.496e21 = 3.3422459893e-21
5 Å = 3.3422459893e-21 AU
Angstrom to Astronomical Unit Conversion Table
Quick reference table for common angstrom to astronomical unit conversions. Click any value for detailed calculation.
| Angstroms (Å) | Astronomical Units (AU) |
|---|---|
| 0.1 Å | 6.6844919786e-23 AU |
| 0.5 Å | 3.3422459893e-22 AU |
| 1 Å | 6.6844919786e-22 AU |
| 2 Å | 1.3368983957e-21 AU |
| 5 Å | 3.3422459893e-21 AU |
| 10 Å | 6.6844919786e-21 AU |
| 25 Å | 1.6711229947e-20 AU |
| 50 Å | 3.3422459893e-20 AU |
| 100 Å | 6.6844919786e-20 AU |
About These Units
Angstrom (Å)
An angstrom (Å) is a unit equal to 10⁻¹⁰ meters or 0.1 nanometers. Angstroms measure atomic and molecular dimensions, crystal structures, and electromagnetic wavelengths. A hydrogen atom is about 1.2 Å in diameter. Named after physicist Anders Jonas Ångström.
Astronomical Unit (AU)
An astronomical unit (AU) is the average distance from Earth to the Sun: approximately 149.6 million kilometers or 93 million miles. AUs measure distances within our solar system. Mars is 1.52 AU from the Sun, Jupiter is 5.2 AU.
Frequently Asked Questions
How do I convert angstroms to astronomical units?
To convert angstroms to astronomical units, divide the value by 1.496e21. For example, 10 Å = 6.6844919786e-21 AU.
How many astronomical units are in 1 angstrom?
1 angstrom equals 6.6844919786e-22 astronomical units.
What is the formula for angstroms to astronomical units?
The formula is: AU = Å ÷ 1.496e21.