Convert Angstroms to Megaparsecs
Convert Angstroms (Å) to Megaparsecs (Mpc) instantly and accurately.
Conversion Formula
Mpc = Å × 3.240779289e-33
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 Megaparsecs
A megaparsec (Mpc) is one million parsecs or 3.26 million light years, the standard unit for measuring intergalactic distances. The Andromeda Galaxy is about 0.77 megaparsecs away, while most galaxies in the observable universe are measured in megaparsecs. The Local Group of galaxies spans about 3 megaparsecs. Astronomers use megaparsecs in combination with redshift measurements to calculate distances to distant galaxies and study the expansion of the universe. The Hubble constant, describing cosmic expansion, is expressed in kilometers per second per megaparsec.
Quick Reference Table
| Angstroms (Å) | Megaparsecs (Mpc) |
|---|---|
| 1 Å | 3.241 × 10-33 Mpc |
| 2 Å | 6.482 × 10-33 Mpc |
| 5 Å | 1.62 × 10-32 Mpc |
| 10 Å | 3.241 × 10-32 Mpc |
| 25 Å | 8.102 × 10-32 Mpc |
| 50 Å | 1.62 × 10-31 Mpc |
| 100 Å | 3.241 × 10-31 Mpc |