Energy Consumption Calculator

Typical appliance:	-- select -- Clothes dryer Clothes iron Dishwasher Electric kettle Fan Heater Microwave oven Desktop computer Laptop computer Refrigerator Stereo receiver Television Toaster oven Vacuum cleaner Washing machine Water heater
Power consumption:	watts (W) kilowatts (kW)
Hours of use per day:	h/day
Energy consumed per day:		kWh/day
Energy consumed per month:		kWh/month
Energy consumed per year:		kWh/year

 

Energy consumption calculation

The energy E in kilowatt-hours (kWh) per day is equal to the power P in watts (W) times number of usage hours per day t divided by 1000 watts per kilowatt:

E_(kWh/day) = P_(W) × t_(h/day) / 1000_(W/kW)

 

See also

• Energy cost calculator
• Electricity bill calculator
• How to save energy