This tool converts from **W/m ^{2}** to deciBel (

**dB**).

Enter the value, select the units – e.g. Watt per Square meter (this is the SI unit of sound intensity).

The tool will provide the equivalent value in dB.

🔁 dB to Watt per square meter

**Formula**

**I _{dB} = 10*Log_{10}(I/Io)**

where

- Io = 1×10
^{-12}W/m^{2}is the reference power - I is the power measurement in W/m²

Io is the lowest sound intensity that a person with normal hearing can perceive at a frequency of 1000 Hz

**Example Calculation**

A sound intensity level of 1pW/m^{2} = 1×10^{-12} W/m^{2} is equivalent to 0 dB

Sound Intensity level of 1 W/m^{2} is equivalent to 120 dB