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Enter distance in AU
Kilometers
149,597,871 km
Miles
92,955,807 mi
Light Seconds
499.0 s
How to Use This Calculator
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2
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View detailed breakdowns and explanations below.
📘 What is an AU?
1 AU = 149,597,870,700 meters
Historically, it was defined as the average distance from Earth to the Sun. In 2012, the International Astronomical Union (IAU) redefined it as a fixed number of meters to ensure precision.
🚀 Scale of the Solar System
- Mercury: 0.39 AU from Sun
- Venus: 0.72 AU from Sun
- Earth: 1.00 AU from Sun
- Mars: 1.52 AU from Sun
- Jupiter: 5.20 AU from Sun
- Pluto: ~39.5 AU from Sun
- Voyager 1: Over 160 AU away (Interstellar Space)
✅ Key Takeaways
- AU is used for solar-system scale (planets, asteroids).
- Light Years are used for galactic scale (stars).
- Light takes about 8 minutes and 19 seconds to travel 1 AU.
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