Parsecs to parallax in arcseconds
Type a value in pc to get it in ″ parallax instantly.
1″ parallax
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: ″ parallax to pc
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 pc to ″ parallax
Example: 1 pc = 1 ″ parallax.
Every unit
Your distance in every unit
Tables
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 |
″ 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 |
Quick answers
Quick answers
- How many ″ parallax is 1 pc?
- 1 pc is 1 ″ parallax.
- How many ″ parallax is 10 pc?
- 10 pc is 0.1 ″ parallax.
The units
About these units
Parsecs (pc)
3.26 light-years, the distance at which Earth’s orbit spans one arcsecond.
Parallax in arcseconds (″ parallax)
How far a star shifts against the background as Earth orbits. Distance in parsecs is 1 ÷ parallax.
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