Appliances

Appliance Running Cost Calculator

Any appliance — a fridge, heater, gaming PC or AC unit — costs money every hour it runs. Enter its wattage and how often you use it to see the daily, monthly and yearly cost.

Your details

W

Found on the label or in the manual (in watts).

h
days
$ /kWh

Your price per kWh from your latest bill.

Results

Energy used per year
—
Cost per day
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Cost per month
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Cost per year
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Last updated June 30, 2026. Results update automatically as you type.

How it works

Energy per day (kWh) = watts ÷ 1000 × hours per day. Yearly energy = daily energy × days used per year. Cost = energy × your rate. The monthly figure is the yearly cost divided by 12.

Frequently asked questions

Where do I find an appliance’s wattage?

Check the rating label (often on the back or base), the manual, or the power supply. If only amps and volts are listed, watts = amps × volts.

What uses the most electricity at home?

Anything that makes heat or cold: electric heaters, AC, ovens, kettles, tumble dryers and water heaters. Always-on devices like fridges add up because they run 24/7.

Does standby power matter?

Yes — devices left on standby can quietly add up. Enter a low wattage and 24 hours/day to estimate standby cost.

These calculators provide general estimates for educational purposes only and are not financial advice. Real-world results depend on factors not captured here. Verify figures independently before making any purchase or financial decision.

Recommended gear

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