Enter the voltage (amps), the current (amps), and the power factor into the calculator to determine the Three Phase Power.

## Three Phase Power Formula

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

P = V*I*PF*SQRT(3)
• Where P is the Three Phase Power (watts)
• V is the voltage (amps)
• I is the current (amps)
• PF is the power factor

To calculate the three phase power, multiply the voltage by the current and power factor, then multiply gain by the square root of 3.

## How to Calculate Three Phase Power?

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

Example Problem #1

1. First, determine the voltage (amps). In this example, the voltage (amps) is determined to be 23 .
2. Next, determine the current (amps). For this problem, the current (amps) is measured to be 20 .
3. Next, determine the power factor. In this case, the power factor is found to be 15.
4. Finally, calculate the Three Phase Power using the formula above:

P = V*I*PF*SQRT(3)

Inserting the values from above and solving yields:

P = 23*20*15*SQRT(3) = 11,951.15 (watts)

Example Problem #2

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

voltage (amps) = 10

current (amps) = 4

power factor = 8

Enter these given values into the calculator or above yields:

P = 10*4*8*SQRT(3) = 554.25 (watts)