This tool calculates two important aspects of room acoustics:
– First Reflection Time (how long it takes for the first sound bounce)
– RT60 Estimate (how long it takes for the reverb to decay by 60 dB)

Quick Notes:

• First Reflection Time tells you how quickly early reflections bounce back to your ears.
• RT60 helps you understand how “echoey” or “dead” your room will sound naturally.
• This is a basic estimate — real-world reverb is affected by furniture, wall material, carpeting, and more!

How to Use the Reverb Time Calculator

Enter your room width, length, and height into the input boxes.

Select your unit (Feet or Meters).

Press the “Calculate Reverb” button or hit Enter on your keyboard.

The tool will display:

The First Reflection Time (in seconds)

The Estimated RT60 (in seconds)

Click the “Reset” button or simply press the Escape key on your keyboard.