How many parsec in 1 lightyear? 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 lightyear The SI base unit for length is the metre. 1 metre is equal to 3.2407792700054E-17 parsec, or 1.0570008340246E-16 lightyear. 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 lightyear = 3.26156 lightyear
5 parsec to lightyear = 16.30782 lightyear
10 parsec to lightyear = 32.61564 lightyear
15 parsec to lightyear = 48.92346 lightyear
20 parsec to lightyear = 65.23128 lightyear
25 parsec to lightyear = 81.53909 lightyear
30 parsec to lightyear = 97.84691 lightyear
40 parsec to lightyear = 130.46255 lightyear
50 parsec to lightyear = 163.07819 lightyear
You can do the reverse unit conversion from lightyear 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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