How many parsec in 1 ly? The answer is 0.30660139194648. We assume you are converting between parsec and light year. You can view more details on each measurement unit: parsec or ly The SI base unit for length is the metre. 1 metre is equal to 3.2407792700054E-17 parsec, or 1.0570008340246E-16 ly. Note that rounding errors may occur, so always check the results. Use this page to learn how to convert between parsecs and light years. Type in your own numbers in the form to convert the units!
1 parsec to ly = 3.26156 ly
5 parsec to ly = 16.30782 ly
10 parsec to ly = 32.61564 ly
15 parsec to ly = 48.92346 ly
20 parsec to ly = 65.23128 ly
25 parsec to ly = 81.53909 ly
30 parsec to ly = 97.84691 ly
40 parsec to ly = 130.46255 ly
50 parsec to ly = 163.07819 ly
You can do the reverse unit conversion from ly to parsec, or enter any two units below:
The parsec (symbol pc) is a unit of length used in astronomy. It stands for "parallax of one arc second", and is approximately 19,131,554,073,600 (19 trillion) miles.
A light year, abbreviated ly, is the distance light travels in one year: roughly 9.46 × 1012 kilometres (9.46 petametres, or about 5.88 × 1012 (nearly six trillion) miles). More specifically, a light year is defined as the distance that a photon would travel, in free space and infinitely far away from any gravitational or magnetic fields, in one Julian year (365.25 days of 86400 seconds each).
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