Enter the power factor, the watts, and the amps into the calculator to determine the Voltage from the Power Factor. 

Voltage from Power Factor Formula

The following formula is used to calculate the Voltage from the Power Factor.

V = W/PF/A
  • Where V is the Voltage from Power Factor (volts)
  • PF is the power factor 
  • W is the watts 
  • A is the amps 

To calculate the voltage from a power factor, divide the power by the power factor, then divide by the current.

How to Calculate Voltage from Power Factor?

The following example problems outline how to calculate Voltage from Power Factor.

Example Problem #1

  1. First, determine the power factor. In this example, the power factor is determined to be 673 .
  2. Next, determine the watts. For this problem, the watts is measured to be 35 .
  3. Next, determine the amps. In this case, the amps is found to be 43.
  4. Finally, calculate the Voltage from Power Factor using the formula above: 

V = W/PF/A

Inserting the values from above and solving yields: 

V = 35/673/43 = .00120 (volts)

Example Problem #2

Using the same method as above, determine the variables required by the formula. For this example problem, these are:

power factor = 2

watts = 500

amps = 435

Enter these given values into the calculator or above yields: 

V = 2/500/435 = .574 (volts)