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Calcimator

Soundproofing Material Calculator

Calculate sound transmission loss using the mass law (TL = 20×log10(f×m) - 47 dB). Supports single and multi-layer assemblies with air gaps.

Inputs

Results

Transmission loss (dB)

26.7

Mass law TL (dB)26.7
Estimated STC (lab)27
Estimated field STC22
Total surface mass (kg/m²)10
Est. coincidence freq (Hz)1,016
How to Use This Calculator
  1. Enter Surface mass per layer (kg/m²), Frequency (Hz), and Number of layers.
  2. Set Air gap between layers (mm).
  3. Review the Transmission loss (dB) result.
  4. Use Mass law TL (dB) and Estimated STC (lab) to inform your decision.
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