Example 1
An intensity of 1.0 × 10⁻6 W/m² corresponds to 60 dB.
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Physics tools › Sound level and intensity
Mendeleev · Physics
Sound level and intensity
The decibel scale is logarithmic: a 10 dB increase corresponds to ten times the sound intensity.
Formula usedβ = 10 log₁₀(I/I₀)
Visual cue · sound wave
Calculate
Sound level and intensity
What do the symbols mean?
βsound level
Isound intensity
Two worked examples
Example 2
An 80 dB sound has 100 times the intensity of a 60 dB sound.
Good to knowThe reference intensity is I₀ = 1.0 × 10⁻12 W/m². This calculator concerns sound intensity level, not perceived loudness.