Enter the inductive reactance, capacitive reactance, and resistance. The calculate will evaluate and display the phase angle in degrees or radians.

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## Phase Angle Formula

The following equation can be used to calculate the phase angle of a coil.

A = tan^-1(XL-XC/R)

- Where A is the phase angle
- XL is the inductive reactance
- XC is the capacitive reactance
- R is the resistance

## Phase Angle Definition

A phase angle is the amount at which the voltage of a coil or circuit is leading or lagging behind the current of the same coil or circuit. This term is used most in electromagnetism.

## Phase Angle Example

How to calculate a phase angle?

**First, determine the inductive reactance.**Measure the inductive reactance of the circuit.

**Next, determine the capacitive reactance.**Measure the capacitive reactance of the circuit.

**Next, determine the resistance.**Measure the total resistance of the circuit.

**Finally, calculate the phase angle.**Calculate the phase angle using the formula above.

## FAQ

**What is a phase angle?**

A phase angle is the leading or lagging amount that the voltage is moving through a circuit.