dBuV to dBm Calculator

This calculator converts from dBuV (dB microvolt) to dBm (dB milliwatt). The default impedance is 50 ohm although you can change it to any value.

dBm to dBuV

Formula

dBm = dBμV − 10*Log10(Z) − 90

Example Calculation

A value of 1 dBuV into 50 ohm gives -106 dBm.