Motor HP Calculator
Calculate horsepower from motor voltage, current, and efficiency.
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How It Works
Calculate horsepower from motor voltage, current, and efficiency. Enter your values and press Calculate for instant results with a full formula breakdown.
Formula
HP = (V x I x Eff) / 746Quick Reference
Common calculations — results you can verify instantly.
480V, 10A, 90% eff
480×10×0.90/746
5.79 HP
120V, 20A, 85% eff
120×20×0.85/746
2.74 HP
240V, 15A, 88% eff
240×15×0.88/746
4.25 HP
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