🔭 Ultimate Unit Converter
Including Astronomy & Astrophysics Units
🔭 Free Online Unit Converter with Astronomy & Astrophysics Units
This is a powerful, beautiful, and fully functional Unit Converter that works directly on this page. It supports everyday units (length, weight, temperature, volume) and specialized Astronomy & Astrophysics units like Astronomical Unit (AU), Light Year (ly), Parsec (pc), Solar Mass (M☉), Solar Radius, and more.
✨ Features
- Real-time instant conversion
- Modern and mobile-friendly design
- Swap units with one click
- Multiple categories including dedicated Astronomy section
- No ads, no registration, works offline
🚀 Supported Categories
- Length – Meter, Kilometer, Inch, Foot, Mile, etc.
- Weight / Mass – Kilogram, Pound, Gram, etc.
- Temperature – Celsius, Fahrenheit, Kelvin
- Volume – Liter, Milliliter, Gallon, etc.
- Astronomy & Astrophysics – AU, Light Year, Parsec, Solar Mass (M☉), Earth Mass (M⊕), Jupiter Mass (MJ), Solar Radius (R☉), Solar Luminosity (L☉)
How to Use the Unit Converter
- Select the category from the tabs (e.g., Astronomy & Astrophysics)
- Enter the value you want to convert
- Choose the unit you are converting From and To
- The result updates automatically in real time
- Use the ⇄ button to quickly swap From and To units
Popular Astronomy Conversions
- 1 Astronomical Unit (AU) ≈ 149.6 million km (average Earth-Sun distance)
- 1 Parsec (pc) ≈ 3.26 Light Years
- 1 Light Year (ly) ≈ 9.46 trillion km
- 1 Solar Mass (M☉) ≈ 333,000 Earth Masses (M⊕)
- 1 Solar Mass ≈ 1,047 Jupiter Masses (MJ)
Why This Converter?
Whether you are a student, astronomy enthusiast, researcher, or blogger, this tool provides accurate and instant conversions. It is especially useful for astrophysics calculations involving stellar distances, planetary masses, and solar system scales.
Tip: You can embed this same converter on your own website or blog by copying the full HTML code.
Bookmark this page for quick access. New units and categories will be added regularly.

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