# ››Convert astronomical unit to parsec

 AU parsec

How many AU in 1 parsec? The answer is 206264.807497.
We assume you are converting between astronomical unit and parsec.
You can view more details on each measurement unit:
AU or parsec
The SI base unit for length is the metre.
1 metre is equal to 6.68458712267E-12 AU, or 3.24077927001E-17 parsec.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between astronomical units and parsecs.
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# ››Definition: Astronomical unit

The astronomical unit (AU or au or a.u. or sometimes ua) is a unit of length. It is approximately equal to the mean distance between the Earth and Sun. The currently accepted value of the AU is 149 597 870 691 ± 30 metres (about 150 million kilometres or 93 million miles).

The symbol "ua" is recommended by the Bureau International des Poids et Mesures, but in the United States and other anglophone countries the reverse usage is more common. The International Astronomical Union recommends "au" and international standard ISO 31-1 uses "AU".

# ››Definition: Parsec

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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