## ››Convert light year to megaparsec

 light years megaparsecs

How many light years in 1 megaparsecs? The answer is 3261563.7967311.
We assume you are converting between light year and megaparsec.
You can view more details on each measurement unit:
light years or megaparsecs
The SI base unit for length is the metre.
1 metre is equal to 1.0570008340246E-16 light years, or 3.2407792700054E-23 megaparsecs.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between light years and megaparsecs.
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## ››Definition: Light-year

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).

## ››Definition: Megaparsec

The SI prefix "mega" represents a factor of 106, or in exponential notation, 1E6.

So 1 megaparsec = 106 parsecs.

The definition of a parsec is as follows:

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.

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