The easiest way to determine how much electricity a home uses on average is by using an online calculator. Homeowners can enter the kilowatt per hour values of appliances and other electric items, and the calculator determines the total kwh usage per month.
Since all appliances use varying amounts of power, it is important to determine exactly how much each individual appliance uses. This information can often be found in the sales material or user's manual that came with the appliance. If the power consumption can not be found, a call to the manufacturer can often be useful in determining how many kwh an appliance uses.