What is the Power Factor Calculator?

The Power Factor Calculator is a tool used in electrical engineering to determine the efficiency of an AC electrical system. By entering the real power (P) in watts and the apparent power (S) in volt-amperes, this calculator computes the power factor (PF), which indicates how effectively electrical power is being converted into useful work. It also calculates the phase angle (θ) between voltage and current, giving insight into the system’s reactive power.

How to Use:

1. Enter Real Power (P): The actual power consumed by the device in watts (W).
2. Enter Apparent Power (S): The product of voltage and current in the circuit, measured in volt-amperes (VA).
3. Click “Calculate”: The tool calculates the power factor using PF = P / S and the phase angle using θ = cos⁻¹(PF).
4. View Results: The calculator displays the input values, the computed power factor (dimensionless, between 0 and 1), the phase angle in degrees, and the formula used.