Appliance cost calculators
Some appliances cycle on and off. Others are better measured per load or per year. Choose the calculator that fits.
Air conditioner
Watts, hours & active time
Space heater
Watts, hours & active time
Clothes dryer
Energy per cycle × monthly cycles
Refrigerator
Annual kWh from your label
Dehumidifier
Watts, hours & active time
Computer
Actual draw, not PSU capacity
Dishwasher
Energy per cycle × monthly cycles
Washing machine
Energy per cycle × monthly cycles
Freezer
Annual kWh from your label
Television
Watts, hours & active time
Ceiling fan
Watts, hours & active time
Microwave
Watts, hours & active time
Electric kettle
Watts, hours & active time
Air fryer
Watts, hours & active time
Electric oven
Watts, hours & active time
LED lighting
Watts, hours & active time
Pool pump
Watts, hours & active time
Air purifier
Watts, hours & active time
Use the right measure.
Use watts and actual operating time for a steady load. For a cycling compressor, adjust active time. For a refrigerator, use annual label kWh; for a dryer, use cycle kWh.
All starting inputs are editable worked examples. They are not measured averages, model recommendations, or claims about your home.
Start with your appliance, then your bill
Check the model specification or a suitable energy meter. Use your applicable per-kWh price, including variable delivery charges, to estimate the extra operating cost.
State averages are a fallback when you do not have your bill handy.