mW to dBm Conversion Application Calculators
 
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

 

Calculations and Equations used:

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

  2. dBm to mW = 10(dBm/10)