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Astronomical Unit Calculator
Convert astronomical units to kilometres, miles, light-minutes and light-years.
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Convert astronomical units to kilometres, miles, light-minutes and light-years.
Astronomical Unit Estimator
Enter your numbers below for an instant estimate.
0
๐ก Tip: km = AU x 149,597,870.7.
How It Works
Key concepts behind this calculator
1
Enter Values
Fill in each field with your own numbers.
2
Calculate
Results update as you change the inputs.
3
Review
Read the breakdown and the explanation.
4
Adjust
Change values to compare scenarios.
Quick Reference Guide
Astronomical Quick Guide
Typical values for reference.
| AU | km | Light-minutes | Body |
|---|---|---|---|
| 0.39 | 58,343,000 | 3.24 | Mercury |
| 1 | 149,597,871 | 8.32 | Earth |
| 5.2 | 777,909,000 | 43.2 | Jupiter |
| 30.1 | 4,503,000,000 | 250.3 | Neptune |
| Rule of Thumb | Check inputs | Use as a guide | Round sensibly |
Common Questions
Astronomical Unit Calculator FAQ
Answers to common questions about this calculator.
The average distance from Earth to the Sun.
About 30 AU.
km = AU x 149,597,870.7.
It is an estimate based on the inputs you enter. Check real quotes, labels or official guidance for important decisions.