Convert between light years and parsecs, the two most commonly used astronomical distance units. A parsec is defined as the distance at which one AU subtends an angle of one arcsecond.
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Distance in light years
Distance in parsecs
How this calculator works
One parsec equals approximately 3.2616 light years, or about 3.086×10¹³ km.
Common questions about this calculator
These calculators are for educational and informational purposes only. While we strive for accuracy, results should be verified for critical applications. Always consult authoritative sources for engineering or scientific work.
