Unit Converter

Astronomical Units to Light Years - Convert au to light year


Astronomical Units (au) Conversion

Astronomical unit is a unit of length which describes the average distance between the Earth and the sun and is used to measure distances in the Solar system. This unit is accepted by the SI system. The exact numbers vary as Earth orbits the Sun from a maximum (aphelion) to a minimum (perihelion). Since 2012, the Astronomical unit has been defined as exactly equal to 149597870700 meters or about 150 million kilometers (93 million miles).

Light Years (light year) Conversion

A light year is a unit of length used in astronomy to express the distance that light travels in a vacuum for one year of time. One light year is approximately 5.880 trillion miles and equals exactly 9460730472580.8 kilometers or 9460730472580800 meters.

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