Common values
| Power | dBm |
|---|
How it works
dBm is power relative to 1 milliwatt on a logarithmic scale: dBm = 10 × log₁₀(P in mW). So 1 mW = 0 dBm, 1 W = 30 dBm, and every +3 dB roughly doubles the power.
dBW is relative to 1 watt: dBW = dBm − 30.
Edit any field and the others update.