How many light year in 1 megalight-year? The answer is 999315.53730322. We assume you are converting between light year and megalight year. You can view more details on each measurement unit: light year or megalight-year The SI base unit for length is the metre. 1 metre is equal to 1.0570008340246E-16 light year, or 1.0577248071986E-22 megalight-year. Note that rounding errors may occur, so always check the results. Use this page to learn how to convert between light years and megalight years. Type in your own numbers in the form to convert the units!
You can do the reverse unit conversion from megalight-year to light year, or enter any two units below:
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).
One megalight-year, abbreviated "Mly", is one million light-years, or 306,601 parsecs. Megalight-years are typically used to measure distances between neighboring galaxies and galaxy clusters.
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