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dBm to Watts Calculations

    1. mW to dBm = 10Log10(Watts) + 30

    2. dBm to mW = 10(dBm/10)
milliWatts to dBm (and vice versa)

Power in milliWatts to dBm (and vice versa) . Enter the 'Transmit Power' (A or G above) in milliWatts OR the 'Power Ratio' in dBm and click the appropriate 'Calculate' button. 1 Watt = 1000 milliWatts.

Calculations and equations used.
Transmit Power   Result
mW  dBm
Power Ratio   Result
 dBm  mW