RF Power Converter
Convert RF power between watts, milliwatts, microwatts, dBm and dBW.
RF Power Converter
How to use the RF Power Converter
Enter an absolute RF power value and its unit to see every equivalent linear and logarithmic value.
How it works
RF power is commonly expressed as a linear value such as watts or milliwatts, or logarithmically as dBm and dBW. dBm is referenced to 1 mW and dBW is referenced to 1 W.
Example: 30 dBm equals 1 W, 0 dBm equals 1 mW, and 0 dBW also equals 1 W. An increase of 10 dB represents ten times the power.
What to keep in mind
These are absolute power conversions and do not require an impedance. Converting between RF voltage and power would additionally require the system impedance and a clear peak or RMS convention.
Frequently asked questions
What is the difference between dB and dBm?
dB expresses a ratio. dBm expresses an absolute power level referenced to 1 milliwatt.
Can zero watts be converted to dBm?
No finite logarithmic value represents zero watts; it approaches negative infinity.
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