Acoustic panel calculator
Estimate the number of panels needed to reduce average reverberation time.
Inputs
Result and recommendation
Enter values and run the calculation.
How to use it
Use a coefficient relevant to the frequency band and mounting method, not only a single marketing NRC value.
Example
Example: a 4.2 × 3.4 × 2.6 m room with hard walls and partial panel coverage. Change one parameter at a time and compare saved variants.
Limitations
The result is a first-order model. Real reflections depend on geometry, furniture, gaps, mounting and the positions of the source and microphone.
FAQ
Does this replace a measurement?
No. It helps plan an initial variant and budget, but final decisions should be verified with an impulse-response measurement.
Are more panels always better?
No. One-sided absorption can leave bass problems unresolved and make the upper range too dry.
Where is data stored?
Only in this browser until you export a file or delete local data.
Next step
Read the methodology · Treatment plan step by step · Compare variants