Appliance running cost calculator
What an appliance costs per hour, day and year at the rate on your own electricity bill.
Running cost = watts ÷ 1,000 × hours × your rate per kWh. At an example rate of 30c per kWh, a 2,000 W heater used for 4 hours costs $2.40 a day ($0.60 an hour). Use the usage rate on your own bill; the appliance figures below are examples you can change.
| Appliance | Watts | Hours per day | Days per year | Per day | Per year |
|---|---|---|---|---|---|
| $2.40 | $216.00 | ||||
| $0.43 | $157.68 | ||||
| $0.72 | $72.00 | ||||
| – | – | ||||
| – | – |
Total per year
$445.68
$37.14 a month on average
- Largest share
- Heater (48%)
Show the numbers as a table
| Item | Value |
|---|---|
| Heater | $216 |
| Fridge (running average) | $158 |
| Clothes dryer | $72 |
Good to know
- Appliances with thermostats or compressors (fridges, heaters, air conditioners) don't draw full power all the time, so actual use is often lower than wattage × hours.
- On a time-of-use plan, use the rate for the hours the appliance runs (peak, shoulder or off-peak).
- Daily supply charges are separate and don't depend on how much you use.
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Terms on this page
- kWh · Kilowatt-hour
- A unit of energy: using 1,000 watts for one hour. Electricity is billed per kWh; battery capacity is measured in kWh.