Calculate single-phase motor amps, horsepower, watts, kilowatts, kVA, power factor, efficiency, starting current, and energy cost. This calculator is useful for motor load planning, breaker planning, fuse planning, starter estimates, and circuit capacity checks.
Motor power:
The calculator converts horsepower to output watts or uses entered kW and amps.
Single-phase current:
It uses voltage, efficiency, and power factor to estimate motor current.
Planning values:
It estimates running amps, service-factor amps, starting amps, kVA, monthly kWh, and energy cost.
A single phase motor calculator helps estimate electrical values for pumps, fans, air compressors, shop tools, HVAC motors, garage equipment, and appliance motors.
It can help with motor load planning, breaker planning, fuse planning, wire planning, starter estimates, panel capacity checks, and energy cost estimates.
Your result shows single-phase motor amps, horsepower, output watts, output kW, input watts, input kW, kVA, starting amps, service-factor amps, monthly kWh, monthly cost, and comparison motor estimates.
Convert horsepower to watts, then divide by voltage, efficiency, and power factor.
For the same horsepower and voltage, single-phase motors often draw more current because they do not use the balanced three-phase power relationship.
For real installations, use the motor nameplate amps and the manufacturer’s instructions. Calculated amps are useful for early planning.
No. This calculator gives planning estimates. Final motor circuits must follow motor nameplate data, electrical code, manufacturer instructions, and local inspection requirements.