Earth Radii to Light-Years
1 Earth Radius = 6.73e-10 Light-Years · fixed factor via canonical reference constants · no offset
Direct Answer
1 Earth Radius equals 6.73e-10 Light-Years
This conversion uses a fixed factor based on canonical reference constants.
For 2 Earth Radii, the result equals 1.35e-9 Light-Years.
Converter Calculator
6.73e-10 Light-Years (ly)
SwitchExplanation
Formula: Light-Years = Earth Radii × 6.73e-10. Why: larger astronomy distance scales such as light-years and parsecs are normalized through meters using fixed reference relationships, then restated in the target unit.
Earth Radii (R_earth): a planetary scale unit based on Earth's reference radius, useful for comparative astronomy and planetary science.
Light-Years (ly): the distance light travels in one Julian year in vacuum, widely used for interstellar distances.
This route is useful when comparing planetary, stellar, and standard distance scales so astronomy references stay on the intended unit system.
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) | Light-Years (ly) |
|---|---|
| 1 | 6.73e-10 |
| 2 | 1.35e-9 |
| 5 | 3.37e-9 |
| 10 | 6.73e-9 |
| 100 | 6.73e-8 |
| 1,000 | 6.73e-7 |
Frequently Asked Questions
How is Earth Radii to Light-Years calculated?
The factor is derived by reducing both units to meters and applying the fixed deep-space reference constants for light-years and parsec-based scales.
How do I reverse Earth Radii to Light-Years?
Use the mirror Light-Years 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 Light-Years?
Yes. Decimal inputs are supported for Earth Radii to Light-Years, and the mirror direction keeps inverse assumptions aligned.