P(mW)=1W‧10((20dBm-30)/10)=100W So, the power of 20 dBm is equal to 100 WExample 2: 10 dBm to watts P(mW)=1W‧10((10dBm-30)/10)=10W So, the power of 10 dBm is equal to 10 W Watts to dBm Conversion Formula ...
dBm is referenced to one milliwatt (0.001 W). dBW value in dBm is always 30 more because 1 watt is 1000 milliwatts, and ratio of 1000 (in power) is 30 dB, eg 10 dBm (10mW) is equal to -20 dBW (0.01 W). Input a value above, select the type of unit you wish to convert, ...