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Reverb Decay (RT60) Calculator

Estimate a room’s reverberation time.

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How it works

Fill in the 2 fields above and Reverb Decay (RT60) Calculator calculates the result instantly, recalculating as you change any value. It applies the formula RT60 = 0.161·V / A. The math runs locally in your browser — nothing is sent to a server.

Formula

RT60 = 0.161·V / A

Examples

  • Room volume 100 m³, Total absorption 20 sabins → RT60: 0.81 s

Frequently asked questions

How do I use the Reverb Decay (RT60) Calculator?

Enter your values in the 2 input fields and the result is calculated automatically as you type. Change any value to see the numbers update instantly.

What formula does the Reverb Decay (RT60) Calculator use?

It uses RT60 = 0.161·V / A. The calculation is performed in your browser using standard, well-established math for accurate results.

Is my data private?

Yes. The Reverb Decay (RT60) Calculator runs entirely in your browser. Nothing you enter is uploaded, saved to a server, or shared — it never leaves your device.

Is the Reverb Decay (RT60) Calculator free?

Yes, it is completely free with no sign-up, no limits and no watermarks. Like every tool on music and the rest of the platform, you can use it as often as you like.

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