Watts (W) to decibel-milliwatts (dBm) Converter

W
   
dBm result: dBm

Watts (W) to decibel-milliwatts (dBm):
P(dBm) = 10 · log10( 1000 · P(W) / 1W) = 10 · log10( P(W) / 1W) + 30