Enter the input voltage (volts), the current (amps), and the power factor of the system into the calculator to determine the Single Phase Power. 

Single Phase Power Formula

The following formula is used to calculate the Single Phase Power.

P-1 = V*A*PF
  • Where P-1 is the Single Phase Power (watts)
  • V is the input voltage (volts) 
  • A is the current (amps) 
  • PF is the power factor of the system 

To calculate the single phase power, multiply the voltage by the current, then by the power factor.

How to Calculate Single Phase Power?

The following example problems outline how to calculate Single Phase Power.

Example Problem #1

  1. First, determine the input voltage (volts). In this example, the input voltage (volts) is determined to be 16 .
  2. Next, determine the current (amps). For this problem, the current (amps) is measured to be 75 .
  3. Next, determine the power factor of the system. In this case, the power factor of the system is found to be 4.
  4. Finally, calculate the Single Phase Power using the formula above: 

P-1 = V*A*PF

Inserting the values from above and solving yields: 

P-1 = 16*75*4 = 4800 (watts)

Example Problem #2

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

input voltage (volts) = 98

current (amps) = 73

power factor of the system = 5

Enter these given values into the calculator or above yields: 

P-1 = 98*73*5 = 35,770 (watts)