Acoustics Engineering

Reverberation Time (RT60) Calculator

Determines the time required for sound pressure level to decay by 60 dB in an enclosed space — critical for architectural acoustics design, concert hall optimization, and speech intelligibility assessment.

Quick Answer

The reverberation time (rt60) calculator computes reverberation time (rt60) from the input values you provide.

Calculator

Reverberation time (RT60) (s)
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Result Interpretation

The result shows Reverberation time (RT60) in s, computed directly from the entered inputs using the formula defined for this tool.

Worked Example

Verified calculation

Given:

  • V = 48
  • A = 300

Expected Result:

  • RT60 = 0.02576

The actual numerical result is computed by the Runtime engine using the persisted tool definition. The values shown here come from verified test cases.

Formula / Method

RT60 = 0.161 * room volume / total absorption

Reverberation time (RT60).

Variables

SymbolLabelRoleDescription
V Room volume INPUT Room volume
A Total absorption INPUT Total absorption
RT60 Reverberation time (RT60) OUTPUT Reverberation time (RT60)

Calculation Steps

  1. Enter the room volume in m³.
  2. Enter the total absorption in sabins.
  3. Step 1: Compute reverberation time (rt60).
  4. Read the reverberation time (rt60) (s) from the results.

Frequently Asked Questions

What does this calculator calculate?

The Reverberation Time (RT60) Calculator estimates Reverberation time (RT60) based on the input parameters you provide

What units should I use for the inputs?

Enter each value in the units shown next to the input field: Room volume (m³), Total absorption (sabins). Make sure all inputs use the specified units for consistent results

How does Room volume affect the results?

The room volume directly affects: Reverberation time (RT60). Increasing or decreasing this value will change these output values according to the engineering formula

How should I interpret the calculated results?

The calculator provides the following outputs: reverberation time (rt60) in s. Results are computed from the input values using the defined calculation method. Always verify results against project-specific requirements and applicable standards

What assumptions does this calculator use?

This calculator uses verified engineering formulas. Results are approximate and should be validated against site-specific conditions, applicable codes, and professional engineering judgment

When is this calculation useful?

The Reverberation Time (RT60) Calculator is useful during preliminary design, feasibility studies, and quick engineering checks in acoustics projects. It helps engineers and designers estimate key parameters before proceeding with detailed analysis

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