Sound Intensity Calculator — I = P/A

Intensity is power per unit area — how concentrated the sound energy is. Double the distance from a point source and the intensity drops to one quarter (inverse-square law).

Sound Intensity Calculator — I = P/A

$I = \frac{P}{A}$

Solve for

Power (P)

Unit

Area (A)

Unit

Result unit

How to interpret the result

Normal conversation is about 10⁻⁶ W/m² at 1 m. The decibel scale compresses this huge range into manageable numbers.

Assumptions

Uniform power distribution over the area