Convert Picometers to Astronomical Units
Convert Picometers (pm) to Astronomical Units (AU) instantly and accurately.
Conversion Formula
AU = pm × 6.684587122e-24
About Picometers
A picometer (pm) is one trillionth of a meter (10⁻¹² m), making it 1,000 times larger than a femtometer but still unimaginably small. This unit is crucial in atomic and molecular physics, as it represents the scale of atomic radii and chemical bonds. For example, a hydrogen atom has a radius of about 53 picometers, and the length of a typical chemical bond ranges from 100 to 200 picometers. X-ray wavelengths also fall within this range.
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
| Picometers (pm) | Astronomical Units (AU) |
|---|---|
| 1 pm | 6.685 × 10-24 AU |
| 2 pm | 1.337 × 10-23 AU |
| 5 pm | 3.342 × 10-23 AU |
| 10 pm | 6.685 × 10-23 AU |
| 25 pm | 1.671 × 10-22 AU |
| 50 pm | 3.342 × 10-22 AU |
| 100 pm | 6.685 × 10-22 AU |