Conversions of power levels: W, dBW and dBm.
P =  dBW 
      Power :   P =  dBm
P =  W
  Enter one value ( in dBW or dBm or W) and click the CONVERT button
  next to it to compute other values.
 

       Conversions of amplitude levels: V, dBV and dBuV.
U =  dBV
 Amplitude :  U =  dBuV
U =  V
  Enter one value ( in dBV or in dBuV or in V ) and click the CONVERT
  button next to it to compute other values.
 

                      Conversions between dBuV e dBm.
Impedance :  Zc =  Ohm
Power :  P =  dBm
Amplitude :  U =  dBuV
Enter Zc in Ohm and one value (or power in dBm or amplitude in dBuV)
and click the CONVERT button next to it to compute other value.

Conversion valid if Zc is real and the load is matched to transmission line.