Calculators

Horsepower to Amps Calculator

Estimate the current drawn by an electric motor from horsepower, voltage, efficiency and power factor.

hp
V
%

Enter your values and press Calculate.

How to use the Horsepower to Amps calculator

For conductor and overload sizing use the full-load current tables in your electrical code, not this estimate.

Formula

I = hp × 746 ÷ (V × efficiency × PF) (× 1/√3 for three phase).

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