Motor Wattage Calculator

⚡ Single Phase Motor & Fan Wattage Calculator

Calculate power consumption in Watts, HP, and hourly units for 220V motors.

Voltage (Volts):

Current Load (Amperes / Amps):

Power Consumption (Watts): -

Power in Kilowatts (kW): -

Horsepower (HP): -

Electricity Used (Units / Hour): -

Understanding Single Phase Motor Wattage Calculator
Calculating the electrical load of single phase motors is essential for winding technicians, electricians, and workshop owners. Whether you are running washing machine motors, exhaust fans, or general-purpose induction motors, knowing the exact power consumption helps evaluate energy usage and overall efficiency.
How Motor Power Calculation Works
To determine total power consumption in Watts, the mathematical relation uses line voltage, full load current in amperes, and power factor:

\text{Watts} = \text{Voltage (V)} \times \text{Current (A)} \times \text{Power Factor (PF)}

For standard single phase 220V AC applications, the nominal power factor (\cos \phi) is set to 0.80.
Watts to Kilowatts (kW): Divide the calculated wattage by 1000.
Power in Horsepower (HP): Divide the total watts by 746.
Hourly Electricity Consumption: 1 \text{ kW} used for one hour equals 1 \text{ kWh} (1 \text{ Unit}).
Why Use an Online Motor Wattage Calculator?
Using an online motor wattage calculator eliminates manual arithmetic errors when checking wire gauge capacity, testing motor performance, or auditing monthly power costs.