Is this Parallax Calculator free to use?

Yes, Parallax Calculator is 100% free to use online with no installation or account required.

How do I use the Parallax Calculator?

Simply enter your values into the required input fields and click calculate to view the results instantly.

Yes, the calculator is fully responsive and compatible with Android, iOS, Windows, macOS, and Linux web browsers.

Parallax Calculator — Free Online Tool

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Calculate stellar distance using annual parallax angle

Formula: $d = \frac{1}{p}$
Where $d$ is distance in parsecs (pc) and $p$ is the stellar parallax angle in arcseconds (arcsec).

Parallax Parameters

Parallax Angle ($p$, arcseconds)

⚠️ For astrophysics and astronomy education reference only. Assumes standard trigonometric stellar parallax measurement.

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