How many astronomical units are in one parsec?

One parsec equals 206,264.806247 AU. The formula is AU = pc × 206,264.806247.

How do I convert parsecs to astronomical units?

Multiply the value in parsecs by 206,264.806247. For example, 100 × 206,264.806247 = 20,626,480.62471 — so 100 pc = 20,626,480.62471 AU.

How many parsecs are in one astronomical unit?

One astronomical unit equals 0.000005 pc.

Pair · linear · factor 206,264.806247

parsecs to astronomical units

pcAU

Active unit

parsecs · ≈ 3,085,677,581,491,367 km (base)

All units

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pcparsec100

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Frequently asked questions

An emerald parallax triangle with a star at its apex and a scale of cosmic distances, against a cosmic nebula in violet and magenta

Astronomical distances

A light-year is not time — how we measure the cosmos

Han Solo bragged he made the Kessel Run in less than twelve parsecs — but a parsec is a unit of distance, not time. We make the same slip with the light-year. Here is how astronomy handles distances that will not fit on Earth — and why our brains stumble over them.

12 min