How it works
Fill in the 1 field above and Schwarzschild Radius Calculator calculates the result instantly, recalculating as you change any value. It applies the formula rs = 2GM / c². The math runs locally in your browser — nothing is sent to a server.
Formula
rs = 2GM / c²Examples
- Mass 1.989e+30 kg → Schwarzschild radius: 2,949.908 m
Frequently asked questions
How do I use the Schwarzschild Radius 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 Schwarzschild Radius Calculator use?
It uses rs = 2GM / c². The calculation is performed in your browser using standard, well-established math for accurate results.
Is my data private?
Yes. The Schwarzschild Radius Calculator runs entirely in your browser. Nothing you enter is uploaded, saved to a server, or shared — it never leaves your device.
Is the Schwarzschild Radius Calculator free?
Yes, it is completely free with no sign-up, no limits and no watermarks. Like every tool on science and the rest of the platform, you can use it as often as you like.
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