Enter the total db (decibel volts) into the calculator to determine the Voltage from DB.

## Voltage from DB Formula

The following formula is used to calculate the Voltage from DB.

V = 10(dBV/20)

Variables:

• Where V is the Voltage from DB (volts)
• dVB is the total db (decibel volts)

To calculate the voltage from dB, raise 10 to the power of the dBV over 20.

## How to Calculate Voltage from DB?

The following two example problems outline the steps and information needed in order to calculate the Voltage from DB.

Example Problem #1:

1. First, determine the total db (decibel volts). In this example, the total db (decibel volts) is measured to be 14.
2. Finally, calculate the Voltage from DB using the formula above:

V = 10 ^ (dBV / 20)

Inserting the values from above into the equation yields:

V = 10 ^ (14/ 20)  = 5.011 (volts)

Example Problem #2:

Using the same process as the first example, define the variables outlined by the formula. In this case, these values are:

total db (decibel volts) = 100

Entering these values into the formula or calculator above gives us::

V = 10 ^ (100 / 20)  = 100,000 (volts)