L-com

Power Conversion Wireless Calculator

Convert between milliwatts (mW) and dBm for radios, access points, and test gear. Use this dedicated URL for content about transmit power units, logarithmic power, and dBm vs watts.

Power Conversion Wireless Calculator — milliWatts to dBm (and vice versa)

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

See the calculations and equations used for this wireless calculator.

Transmit Power Result
dBm
Power Ratio Result
mW

dBm to milliWatts Calculations

  1. mW to dBm = 10Log10(mW)
  2. dBm to mW = 10(dBm/10)
Disclaimer: Due to the nature of radio frequency propagation and the numerous factors that can affect operating range we do not guarantee that you will achieve any specific range for your application. These wireless calculators are for estimation purposes only. L-com does not guarantee their accuracy or applicability. L-com cannot be held liable for wireless installations based on these tools. Customers should use these tools at their own risk. After you are finished on this page, please visit our line-up of wireless antennas.

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