Three Phase

Three Phase Power Calculator

Calculate three-phase real power from line voltage, current, and power factor (P = √3 × V × I × PF).

Three Phase Current Calculator

Calculate three-phase current from power, line voltage, and power factor (I = P ÷ (√3 × V × PF)).

Three Phase kVA Calculator

Calculate three-phase apparent power from line voltage and current (kVA = √3 × V × I ÷ 1000).

Three Phase Amps Calculator

Calculate three-phase current from apparent power and line voltage (A = kVA × 1000 ÷ (√3 × V)).

Three Phase Voltage Calculator

Calculate three-phase line voltage from power, current, and power factor (V = P ÷ (√3 × I × PF)).

Formula

Three-Phase Power Formula

The three-phase power formula, its variables, and why the √3 factor applies.

Example

Three Phase Examples

Worked, step-by-step examples calculating three-phase power, current, and apparent power.

Guide

Single Phase vs Three Phase

Single-phase and three-phase power explained, and why three-phase calculations use a √3 factor.