3-Phase Power Calculator

Calculate three-phase AC power, line current, phase voltage, and power factor for balanced and unbalanced industrial loads.

Three Phase Power

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Formula

P = √3 × V_L × I_L × PF

Balanced three-phase real power.

IEEE 141 (reference practice)

Assumptions & limits

  • Balanced loads unless stated otherwise
  • Power factor must be known or estimated
AluCalc 2026-07-12