DB To Watts Calculator

Enter either the dB value or the Watts value to calculate the missing parameter. This calculator simplifies conversions between decibels and power measurements like milliwatts, watts, or kilowatts.

The dB to Watts Calculator is a tool used for converting between decibel levels and power in watts. This is particularly useful in audio engineering, telecommunications, and electrical systems to analyze signal power, strength, or losses. It calculates either the dB value for a given power or the power corresponding to a specific dB level.

Formula

• Watts (mW):

  $$P(mW) = 10^{\frac{\text{dB}}{10}}$$

• dB:

  $$\text{dB} = 10 \cdot \log_{10} \left(\frac{P(mW)}{1 \, mW}\right$$

Solved Calculations

Example 1:
Convert dB to Watts:

• dB = 30 dB

Example 2:
Convert Watts to dB:

• Watts = 10 W