Parsec to Light-year Converter
1 pc = 3.2616 ly
FORMULA
1 pc = 3.2616 ly
CONVERSION TABLE
| Parsec (pc) | Light-year (ly) |
|---|---|
| 1 pc | 3.2616 ly |
| 5 pc | 16.3078 ly |
| 10 pc | 32.6156 ly |
| 25 pc | 81.5391 ly |
| 50 pc | 163.0782 ly |
| 100 pc | 326.1564 ly |
| 250 pc | 815.3909 ly |
| 500 pc | 1,630.78 ly |
| 1,000 pc | 3,261.56 ly |
COMMON VALUES
RELATED CONVERSIONS
About Parsec (pc)
Approximately 3.26 light-years (30.857 trillion km), the parsec is defined as the distance at which one astronomical unit subtends one arcsecond of parallax. Professional astronomers prefer parsecs over light-years because parsecs relate directly to the trigonometric parallax method used to measure stellar distances.
About Light-year (ly)
The distance light travels in one Julian year -- approximately 9.461 trillion kilometers -- the light-year is the standard unit for expressing interstellar distances. Proxima Centauri, the nearest star beyond the Sun, lies about 4.24 light-years away. Despite its name, the light-year measures distance, not time.
How to Convert Parsec to Light-year
The conversion formula is: 1 pc = 3.2616 ly. To convert from Parsec (pc) to Light-year (ly), use the formula above or the interactive converter at the top of this page.
FAQ
How many Light-year in 1 Parsec?
1 Parsec (pc) equals 3.2616 Light-year (ly).
How to convert Parsec to Light-year?
Multiply the Parsec value by 3.2616 to get the equivalent in Light-year. Formula: 1 pc = 3.2616 ly
What is the formula for Parsec to Light-year conversion?
1 pc = 3.2616 ly
Glossary
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Meter
The SI base unit of length, defined as the distance light travels in 1/299,792,458 of a second.
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Mile
An imperial unit of length equal to 5,280 feet, 1,760 yards, or exactly 1.609344 kilometers.
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Foot
An imperial unit of length equal to 12 inches or exactly 0.3048 meters, subdivided into 12 inches.
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Inch
An imperial unit of length defined as exactly 2.54 centimeters or 1/12 of a foot.
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Kilometer
A metric unit of length equal to 1,000 meters or approximately 0.621371 miles.