The dBm from voltage and impedance calculator compute the decibel milliwatts from the voltage and impedance.
INSTRUCTIONS: Choose units and enter the following:
dBM: The calculator returns the power in decibel Milli-watts (dBM).
The formula for dBM from voltage and impedance is:
dBM = 10•Log10(V2/(R•0.001mW))
where: