Amps to Horsepower Calculator

Result: 0 HP
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How to Convert Amps to Horsepower

Formula:

HP = (Amps × Volts × Efficiency × Power Factor) ÷ 746

For single-phase motors, use the formula as shown above. For three-phase motors, multiply the result by √3 (approximately 1.732).

Where:

  • HP = Horsepower output
  • Amps = Current draw in amperes
  • Volts = Voltage supply
  • Efficiency = Motor efficiency (decimal form)
  • Power Factor = Motor power factor (typically 0.8-0.9)
  • 746 = Watts per horsepower