Convert Angstroms to Astronomical Units
Convert Angstroms (Å) to Astronomical Units (AU) instantly and accurately.
Conversion Formula
AU = Å × 6.684587122e-22
About Angstroms
An angstrom (Å) is equal to 0.1 nanometers or 10⁻¹⁰ meters, named after Swedish physicist Anders Jonas Ångström. While not an official SI unit, it remains widely used in chemistry, solid-state physics, and crystallography to express atomic distances and wavelengths. A typical atom has a diameter of 1-3 angstroms, and the spacing between atoms in crystals is commonly measured in angstroms. X-ray crystallographers use angstroms to describe molecular structures with atomic precision.
About Astronomical Units
An astronomical unit (AU) is the average distance between Earth and the Sun, precisely defined as 149,597,870.7 kilometers. This unit provides a convenient scale for measuring distances within our solar system. Mars orbits at 1.5 AU, Jupiter at 5.2 AU, and Neptune at about 30 AU from the Sun. The dwarf planet Pluto reaches up to 49 AU away. Light takes about 8.3 minutes to travel 1 AU, explaining why we see the Sun as it was 8 minutes ago. The AU is fundamental in astronomy and space exploration.
Quick Reference Table
| Angstroms (Å) | Astronomical Units (AU) |
|---|---|
| 1 Å | 6.685 × 10-22 AU |
| 2 Å | 1.337 × 10-21 AU |
| 5 Å | 3.342 × 10-21 AU |
| 10 Å | 6.685 × 10-21 AU |
| 25 Å | 1.671 × 10-20 AU |
| 50 Å | 3.342 × 10-20 AU |
| 100 Å | 6.685 × 10-20 AU |