Motors

Motor Full Load Current Calculator

Calculate a motor's full load current from horsepower, voltage, efficiency, and power factor (FLC = (HP × 746) ÷ (V × Eff × PF)).

Motor HP to Amps Calculator

Convert motor horsepower to current from voltage and power factor (A = (HP × 746) ÷ (V × PF)).

Locked Rotor Current Calculator

Calculate a motor's locked rotor (starting) current from full load current and its locked rotor multiplier (LRC = FLC × Multiplier).

Formula

Motor Full Load Current Formula

The motor full load current formula, its variables, and how horsepower converts to current.

Example

Motor Examples

Worked, step-by-step examples calculating motor full load current, HP-to-amps conversion, and locked rotor current.

Guide

Understanding Motor Current

What full load current and locked rotor current are, why motors draw more current at startup, and how the two relate.