Enter the power in milliwatts into the calculator to determine the power ratio in decibels. This calculator can also evaluate the power in mW given the dBW.

Mw To Dbw Formula

The following formula is used to calculate the decibel-watt (dBW) from milliwatt (mW).

dBW = 10 * log10(mW / 1000)


  • dBW is the power ratio in decibels (dB) of the measured power referenced to one watt (W). mW is the power in milliwatts.

To calculate dBW from mW, divide the power in milliwatts by 1000 to convert it to watts. Then take the base 10 logarithm of the result and multiply by 10.

What is a Mw To Dbw?

Mw to Dbw refers to the conversion from milliwatts (Mw) to decibel watts (Dbw). Both are units of measurement for power, often used in the field of telecommunications. Milliwatts measure absolute power, while decibel watts measure relative power, expressing it on a logarithmic scale. This conversion is useful in situations where power levels vary greatly, as it can simplify comparisons and calculations.