Parallax in arcseconds to parsecs
Type a value in ″ parallax to get it in pc instantly.
1pc
That's 1,250× as far as Voyager 1, while Proxima Centauri is 1.3× further. Light takes about 3.262 years to cross it.
Convert the other way: pc to ″ parallax
What it means
How far is that?
One astronomical unit is defined as exactly 149,597,870,700 m, and a light-year uses the Julian year of 365.25 days.
The math
How to convert ″ parallax to pc
Example: 1 ″ parallax = 1 pc.
Every unit
Your distance in every unit
Tables
″ parallax to pc conversion table
| ″ parallax | pc |
|---|---|
| 0.1 ″ parallax | 10 pc |
| 0.5 ″ parallax | 2 pc |
| 1 ″ parallax | 1 pc |
| 2 ″ parallax | 0.5 pc |
| 5 ″ parallax | 0.2 pc |
| 10 ″ parallax | 0.1 pc |
| 25 ″ parallax | 0.04 pc |
| 50 ″ parallax | 0.02 pc |
| 100 ″ parallax | 0.01 pc |
| 500 ″ parallax | 0.002 pc |
| 1,000 ″ parallax | 0.001 pc |
pc to ″ parallax conversion table
| pc | ″ parallax |
|---|---|
| 0.1 pc | 10 ″ parallax |
| 0.5 pc | 2 ″ parallax |
| 1 pc | 1 ″ parallax |
| 2 pc | 0.5 ″ parallax |
| 5 pc | 0.2 ″ parallax |
| 10 pc | 0.1 ″ parallax |
| 25 pc | 0.04 ″ parallax |
| 50 pc | 0.02 ″ parallax |
| 100 pc | 0.01 ″ parallax |
| 500 pc | 0.002 ″ parallax |
| 1,000 pc | 0.001 ″ parallax |
Quick answers
Quick answers
- How many pc is 1 ″ parallax?
- 1 ″ parallax is 1 pc.
- How many pc is 10 ″ parallax?
- 10 ″ parallax is 0.1 pc.
The units
About these units
Parallax in arcseconds (″ parallax)
How far a star shifts against the background as Earth orbits. Distance in parsecs is 1 ÷ parallax.
Parsecs (pc)
3.26 light-years, the distance at which Earth’s orbit spans one arcsecond.
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