Power consumption and energy usage of exhaust fans

A typical household exhaust fan consumes 40 watts of power. The energy usage of an exhaust fan purely depends on how many hours they spin. The energy usage of exhaust fans can be calculated here.

Enter the wattage, hours of usage, and cost per kWh. The energy usage calculator for fans gives you the total energy consumed by them. Also, you can find how much power your exhaust fan consumes.

Energy usage of exhaust fans

Average usage hours per day:
Cost per unit*:(Global Electricity rates)
Electricity usage per hour:
Electricity usage per day:
Usage cost per hour:
Usage cost per day:
Usage cost per month:
Usage cost per year:
*The cost is currency independent and same that of cost per unit input given.

Terms and definitions:


Power usage of the device in watts is mentioned on the label of the exhaust fan.

Cost per unit:

The average cost per unit charged by the electric utility. Every country has different tariff rates. Visit: Global Electricity prices for details if you don’t know how much the utility company charges you per unit or kWH.

Units per day:

The number of units of electricity consumed by the load every day considering the entered operation hours.

Hours of usage:

The number of hours the load is used per day.

The electricity usage depends on the wattage and the number of hours of usage. The utility company charges you for the total kilowatt-hour of energy you have consumed. Kilowatt-hour is the product of the power consumption of the load and the number of hours of usage.

Power consumption of exhaust fans

A typical exhaust consumes 0.04 kWh of energy per hour of usage. That means an hour of usage can cost you 0.005 cents.

Power consumption of an exhaust fan

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