Astronomy Size Converters
Convert astronomical object size scales between planetary and stellar radii or diameters and standard metric units.
Explanation
This hub converts planetary and stellar size references by normalizing every unit through meters. Radii and diameters are treated with fixed constants so size ratios remain reproducible across all mirror pages.
How to use this hub
- Choose a converter family.
- If converting to/from grams from a volume unit, select an ingredient.
- For pure unit changes (volume↔volume or weight↔weight), use universal conversions.
If your conversion includes grams, you’ll choose an ingredient; otherwise you won’t.
Frequently Asked Questions
What units are included in this astronomy size hub?
It includes meters, kilometers, Earth/Jupiter/Solar radii and diameters, plus astronomical units.
Are radii and diameters handled as fixed constants?
Yes. Each reference unit uses a fixed meter-based constant for consistent calculations.
Can I use decimal values?
Yes. Decimal values are supported for precise scaling and ratio comparisons.