Enter the total sound level (dB) and the total voltage (volts) into the Calculator. The calculator will evaluate the Db Voltage Ratio. 

Db Voltage Ratio Formula

DBV = dB / V


  • DBV is the Db Voltage Ratio ()
  • dB is the total sound level (dB)
  • V is the total voltage (volts)

To calculate Db Voltage Ratio, divide the sound level in decibels by the total voltage in volts.

How to Calculate Db Voltage Ratio?

The following steps outline how to calculate the Db Voltage Ratio.

  1. First, determine the total sound level (dB). 
  2. Next, determine the total voltage (volts). 
  3. Next, gather the formula from above = DBV = dB / V.
  4. Finally, calculate the Db Voltage Ratio.
  5. After inserting the variables and calculating the result, check your answer with the calculator above.

Example Problem : 

Use the following variables as an example problem to test your knowledge.

total sound level (dB) = 40

total voltage (volts) = 200