Sound Intensity Level Calculator

Sound Intensity is defined as the sound power Pac per unit area A. Sound intensity level or acoustic intensity level is a logarithmic measure of the sound intensity in comparison to the reference level.
Sound Intensity Level
Select your field:
Sound Intensity (I): w
Reference Intensity (I0): w
Sound Intensity Level (IL): db
Formula
Sound Intensity Level:
IL = 10 log10 (I/I0)

Sound Intensity:
I = I0 * 10 IL/10

Reference Intensity:
I0 = I/10 IL/10

Where,
IL = Sound Intensity Level,
I = Sound Intensity,
I0 = Reference Intensity.

For a specified direction and point in space, the average rate at which sound energy is transmitted through a unit area perpendicular to the specified direction is called as sound intensity.