RF Power Converter
Convert RF power between dBm, watts, dBW, and conducted voltage (dBµV) at a given impedance.
Use this when: You are checking transmitter output, spectrum analyzer power readings, or linking power to LISN voltage.
Key formula
W = 10^((dBm − 30) / 10) · dBµV = dBm + 10·log₁₀(Z) + 90Example: Enter 0 dBm → 1 mW and 107 dBµV at 50 Ω
Related: dBm ↔ dBµV converter with custom impedance
Offset: dBµV = dBm + 107 at this impedance
RF power units in EMC work
Transmitter output, amplifier drive, and many analyzer markers are in dBm or watts. Conducted voltage on a 50 Ω port is in dBµV. This RF power converter links those so you can check whether a “20 dBm” source is a safe chamber drive or an accidental overload.
Typical uses: converting a signal-generator dBm setting to watts into the antenna, checking a conducted-voltage reading against a power spec, or confirming that dBW and dBm differ by 30 dB as expected.
Frequently asked questions
Quick answers about using this calculator
How many dBm is 1 mW?
Can I convert dBm to dBµV here?
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