Convert Gigaparsecs to Astronomical Units
Convert Gigaparsecs (Gpc) to Astronomical Units (AU) instantly and accurately.
Conversion Formula
AU = Gpc × 206264806200000
About Gigaparsecs
A gigaparsec (Gpc) is one billion parsecs or 3.26 billion light years, used for measuring the largest structures in the cosmos. The observable universe has a radius of about 14.3 gigaparsecs (46 billion light years when accounting for expansion). Superclusters and cosmic filaments, the largest known structures, span hundreds of megaparsecs to gigaparsecs. The cosmic microwave background radiation originates from a distance of about 14 gigaparsecs. This unit helps cosmologists map the large-scale structure of the universe and understand its evolution since the Big Bang.
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
| Gigaparsecs (Gpc) | Astronomical Units (AU) |
|---|---|
| 1 Gpc | 2.063 × 1014 AU |
| 2 Gpc | 4.125 × 1014 AU |
| 5 Gpc | 1.031 × 1015 AU |
| 10 Gpc | 2.063 × 1015 AU |
| 25 Gpc | 5.157 × 1015 AU |
| 50 Gpc | 1.031 × 1016 AU |
| 100 Gpc | 2.063 × 1016 AU |