If the appliance you wish to test is a storage water heater or storage space heater (eg. under floor or off peak convection heater), only enter total cost and kWh readings from your bill that relate to "Off Peak" power. For all other appliances, add up and enter the figures for "Peak" power consumption.

Electric Appliance Operating Cost Calculator
This JavaScript calculator will help you to estimate the cost of operating any given electrical appliance, based on the average KWH (kilowatt hours) used per day, and on the average cost per KWH charged by your electric company.
Enter the dollar-amount of your last electric bill:
Enter the total KWH's used during the billing period:
Enter the watts as listed on the appliance:
Or, if watts aren't given, enter the Volts:
And, if watts aren't given, enter the amps:
Enter the average number of hours per day this appliance is used:
This is your average cost per KWH:
This is the KWH's this appliance uses per day:
This is the daily cost to operate this appliance:
This is the monthly cost to operate this appliance:
This is the annual cost to operate this appliance:
This the percentage of your bill attributable to this appliance:
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