# Sound Power Level (SPL) Calculator

Sound Power Level (SPL) is defined as the rate at which sound energy is transferred or received per unit of time. The SI unit of the SPL is Watts(W). The SPL is also known as the acoustic power level. It is nothing but the power of the sound force on a surface of the medium of propagation of the sound wave. This online Sound Power Level (SPL) Calculator helps you to calculate the acoustic power level by the known actual power of the sound emitted.

## Calculate Acoustic Power Level

dB

Sound Power Level (SPL) is defined as the rate at which sound energy is transferred or received per unit of time. The SI unit of the SPL is Watts(W). The SPL is also known as the acoustic power level. It is nothing but the power of the sound force on a surface of the medium of propagation of the sound wave. This online Sound Power Level (SPL) Calculator helps you to calculate the acoustic power level by the known actual power of the sound emitted.

Code to add this calci to your website  #### Formula:

Sound Power Level = 10 x log (P / 10-12) dB Where, P = Actual Sound Power dB = Decibel

#### Example

Calculate the Acoustic Power Level of an engine having 89 dB as the actual Power of Sound?
= 10 x log (89 / 10^-12)
= 10 x log(89000000000000)
= 10 x 13.949390006644913
= 139.49390006644913
The Equivalent Sound Power Level (SPL) of an engine is 139.4939 dB.