dBm, Volts, Watts Conversion Tool

Try our quick, handy calculator to instantly convert units from dBm to Volts to Watts based on a 50 ohm system. dBm is defined as power ratio in decibel (dB) referenced to one milliwatt (mW). It is an abbreviation for dB with respect to 1 mW and the "m" in dBm stands for milliwatt.

You can also download the spreadsheet containing the calculations for offline use.