Convert dBWatts to Watts
Convert Watts to dBWatts
Calculating ERP and EIRP
NOTE: Some companies present the gain of their antennas in dBi, not dBd, as most do. That makes it look like they have the same (or more) gain as other antennas, but subtract 2.15 dB from the dBi and you have leveled the playing field.