Earth Radii to Astronomical Units
1 Earth Radius = 0.000042587563 Astronomical Units · fixed factor via canonical reference constants · no offset
Direct Answer
1 Earth Radius equals 0.000042587563 Astronomical Units
This conversion uses a fixed factor based on canonical reference constants.
For 2 Earth Radii, the result equals 0.000085175127 Astronomical Units.
Converter Calculator
0.000042587563 Astronomical Units (AU)
SwitchExplanation
Formula: Astronomical Units = Earth Radii × 0.000042587563. Why: AU, lunar distance, and planetary radius or diameter units are tied to fixed astronomy reference constants, so the route moves through one meter-based normalization path.
Earth Radii (R_earth): a planetary scale unit based on Earth's reference radius, useful for comparative astronomy and planetary science.
Astronomical Units (AU): a standard astronomy distance unit defined exactly as 149,597,870,700 meters, commonly used for Solar System scales.
This route is useful when comparing Solar System and planetary-scale distances using AU, lunar-distance, and Earth or Solar reference units.
This conversion is purely multiplicative because both units reduce through meters using fixed astronomical or geometric reference constants with no offset.
Common Conversion Values
| Earth Radii (R_earth) | Astronomical Units (AU) |
|---|---|
| 1 | 0.000042587563 |
| 2 | 0.000085175127 |
| 5 | 0.000212937817 |
| 10 | 0.000425875634 |
| 100 | 0.004258756338 |
| 1,000 | 0.042587563 |
Frequently Asked Questions
How is Earth Radii to Astronomical Units calculated?
The factor is derived by reducing both units to meters and applying the fixed astronomy reference constants for AU, light-seconds, or lunar-distance scales.
How do I reverse Earth Radii to Astronomical Units?
Use the mirror Astronomical Units to Earth Radii route; it applies the inverse relationship for the opposite direction with the same assumptions.
Can I use decimal values for Earth Radii to Astronomical Units?
Yes. Decimal inputs are supported for Earth Radii to Astronomical Units, and the mirror direction keeps inverse assumptions aligned.