Light Year Converter
Use light year converter with Calculator 360.
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How to use this calculator
Convert between light-years, parsecs, astronomical units, metric distances, and light-time units, with theoretical travel times.
Enter the values required by the selected mode. Results use the shared calculator engine and its stated limits.
Local calculation; consult the method and limits shown below. References: IAU 2012 astronomical unit · BIPM speed of light · NASA lunar distance ·
Frequently asked questions
What does this tool calculate?
Convert between light-years, parsecs, astronomical units, metric distances, and light-time units, with theoretical travel times.
Are the results estimates?
Check the assumptions and limits shown for the selected calculation.