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Voltage to dBm conversion.

The power level of radio-frequency energy is often expressed in decibels above one milliwatt.

This spreadsheet calculates the following:

  • The power in watt and dBm with a given voltage and impedance.

  • The power in dBm with a given power and impedance.

  • The voltage in millivolts with a given power and impedance.

  • The power in watt with a given power in dBm and impedance.

  • The voltage in millivolts with a given power in dBm and impedance.

  • Converts from millivolt to microvolt and volt.

  • Converts from watt to milliwatt.

         
  Voltage (V):
Voltage (mV): Enter Value  
Impedance (Ω): Enter Value   Voltage (μV):
Power (W): Calculated  
Power (dBm): Calculated   Power (mW):
 
 
  Voltage (V):
Power (W): Enter Value  
Impedance (Ω): Enter Value   Voltage (μV):
Power (dBm): Calculated  
Voltage (mV): Calculated   Power (mW):
 
 
  Voltage (V):
Power (dBm): Enter Value  
Impedance (Ω): Enter Value   Voltage (μV):
Power (W) Calculated  
Voltage (mV) Calculated   Power (mW):
 

 

This page was last updated 15.05.08