How to convert light years to parsecs
1 light year is equal to 0.3066013938 parsecs, and 1 parsec is equal to 3.261563777 light years. To convert, multiply by the conversion factor:
parsecs = light years × 0.3066013938
parsecs = light years ÷ 3.261563777Example: convert 15 ly to pc: 15 × 0.3066013938 = 4.599020907 pc.
Light Year to Parsec conversion table
| Light Year (ly) | Parsec (pc) |
|---|---|
| 0.01 ly | 0.003066013938 pc |
| 0.1 ly | 0.03066013938 pc |
| 1 ly | 0.3066013938 pc |
| 2 ly | 0.6132027876 pc |
| 3 ly | 0.9198041814 pc |
| 5 ly | 1.533006969 pc |
| 10 ly | 3.066013938 pc |
| 20 ly | 6.132027876 pc |
| 50 ly | 15.33006969 pc |
| 100 ly | 30.66013938 pc |
| 250 ly | 76.65034845 pc |
| 500 ly | 153.3006969 pc |
| 1,000 ly | 306.6013938 pc |
About the light year
A light-year is the distance light travels in a vacuum in one Julian year (365.25 days): about 9.46 trillion km. The nearest star system, Alpha Centauri, is about 4.37 light-years away.
Symbol: ly · 1 ly = 9.460730473 × 10¹⁵ m · Category: Astronomical
About the parsec
A parsec is the distance at which one astronomical unit subtends an angle of one arcsecond: about 3.26 light-years (3.086 × 10¹⁶ m). Astronomers use it for distances to stars.
Symbol: pc · 1 pc = 3.085677581 × 10¹⁶ m · Category: Astronomical