Real vs Reactive Power Calculator

Solve the AC Power Triangle. Enter any two values (S, P, Q, PF) to calculate the rest, including the Phase Angle.

Power Triangle Solver

Enter EXACTLY two values to calculate the others

Quick Guide

P (Real - W)Q (Reactive - VAR)S (Apparent - VA)θ

Right-Angle Formulas:

  • S² = P² + Q² (Pythagorean)
  • PF = cos(θ) = P / S
  • P = S × PF
  • Q = S × sin(θ)