How it works
Fill in the 1 field above and Parallax Distance Calculator calculates the result instantly, recalculating as you change any value. It applies the formula d (pc) = 1 / parallax. The math runs locally in your browser — nothing is sent to a server.
Formula
d (pc) = 1 / parallaxExamples
- Parallax 0.1 arcsec → Distance: 10 parsecs
Frequently asked questions
How do I use the Parallax Distance Calculator?
Enter your values in the 1 input field and the result is calculated automatically as you type. Change any value to see the numbers update instantly.
What formula does the Parallax Distance Calculator use?
It uses d (pc) = 1 / parallax. The calculation is performed in your browser using standard, well-established math for accurate results.
Is my data private?
Yes. The Parallax Distance Calculator runs entirely in your browser. Nothing you enter is uploaded, saved to a server, or shared — it never leaves your device.
Is the Parallax Distance Calculator free?
Yes, it is completely free with no sign-up, no limits and no watermarks. Like every tool on astronomy and the rest of the platform, you can use it as often as you like.
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