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.

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.

Kilometers:
Miles:
Astronomical units:
Light seconds:
Light minutes:
Light hours:
Light days:
Light years:
Parsec: