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Calcimator

Decibel Addition Calculator

Calculate the combined dB level of multiple sound sources. Includes perceived loudness change and hearing safety assessment.

Inputs

dB
dB

Results

Combined Level

83 dB

Increase from Loudest3 dB
Perceived Loudness Change23% louder
Safety AssessmentCaution — prolonged exposure may cause damage
Max Safe Exposure8 hours
Comparable SoundLawn mower

Combined Level

83 dB

How to Use This Calculator
  1. Start by filling in the input fields below. Results update instantly as you type, so you can experiment with different values to see how they affect the outcome.
  2. Sound Source 1 — Decibel level of the first sound source. Accepts values from 0 dB to 150 dB (default: 80 dB).
  3. Sound Source 2 — Decibel level of the second sound source. Accepts values from 0 dB to 150 dB (default: 80 dB).
  4. Add Third Source — Enable to add a third sound source to the calculation. Toggle this on or off depending on whether it applies to your situation. default: 0.
  5. Sound Source 3 — Decibel level of the optional third sound source. Accepts values from 0 dB to 150 dB (default: 75 dB).
  6. Once all inputs are set, review your results in the Results panel. Here's what each output means:
  7. Combined Level — shown as a numeric value. This is the primary result of this calculator.
  8. Increase from Loudest — shown as a numeric value.
  9. Perceived Loudness Change — your calculated result.
  10. Safety Assessment — your calculated result.
  11. Max Safe Exposure — your calculated result.
  12. Comparable Sound — your calculated result.
  13. Explore the related calculators below if you need deeper analysis or want to approach this topic from a different angle.
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