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Milliwatts to dBm and dBm to milliwatts converter

Calculating the power in mW to dBm (and vice versa). Enter the emission milliwatts or in dBm and click the "Calculate" button power. 1 Watt = 1000 milliwatts.

Power Transmission   Result
mW   dBm
Power   Result
dBm   mW

Calculation of losses in a coaxial cable (2.4 GHz):

H155: 0.48 dB / M

RF240: 0.3 dB / M

Choosing the type of cable:  

Length (meters):  Loss in dB (negative value!):

Useful links:
-Study-relief for the establishment of long distance WiFi connection
-Calculation of the theoretical range of amenities Wifi
-Wireless calculators
- Radio theory and calculations for WLAN links