Convert Astronomical Distances

Calculator for parsec, light year, light second, astronomical units, kilometers and miles. A parsec, or parallax second, is equal to 3.26 light-years. The astronomical unit is the average distance from the earth to the sun, which is almost 150 million kilometers.

Astronomical units:
Light seconds:
Light minutes:
Light hours:
Light days:
Light years:

Round to    decimal places.

Please enter one value, the other values will be calculated.

Example: the closest star to us after the sun is Alpha Centauri with a range of 4.34 light years. This corresponds to 274466.27 astronomical units.

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