Enter the line to neutral voltage into the calculator to determine the phase to phase voltage. This calculator helps in converting single phase voltage to three phase voltage in electrical systems.

Phase To Phase Voltage Formula

The following formula is used to calculate the phase to phase voltage.

V_{pp} = V_{ln} * sqrt{3}

Variables:

  • Vpp is the phase to phase voltage (Volts)
  • Vln is the line to neutral voltage (Volts)

To calculate the phase to phase voltage, multiply the line to neutral voltage by the square root of 3.

What is Phase To Phase Voltage?

Phase to phase voltage, also known as line to line voltage, is the voltage measured between any two phases in a three-phase system. It is used to power large motors and other heavy loads. The phase to phase voltage is typically higher than the line to neutral voltage and is calculated by multiplying the line to neutral voltage by the square root of 3 (approximately 1.732).

How to Calculate Phase To Phase Voltage?

The following steps outline how to calculate the Phase To Phase Voltage.


  1. First, determine the line to neutral voltage (Vln) in volts.
  2. Next, gather the formula from above = Vpp = Vln * √3.
  3. Finally, calculate the Phase To Phase Voltage (Vpp) in volts.
  4. After inserting the variable and calculating the result, check your answer with the calculator above.

Example Problem : 

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

line to neutral voltage (Vln) = 120 volts