Energy Cost per Appliance Calculator
Annual electricity cost of an appliance.
Calculate annual electricity cost of any appliance from wattage, daily use, and electricity rate. Enter daily hours of use to see daily and monthly.
What this tool does
Enter appliance wattage, daily hours, and electricity rate. The tool shows daily, monthly, and annual cost.
Enter Values
Formula Used
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Calculations, display, or translation — let us know.
Disclaimer
Results are estimates for educational purposes only. They do not constitute financial advice. Consult a qualified professional before making financial decisions.
1,000W appliance used 2 hours/day at 0.30/kWh = 0.6 kWh/day × 0.30 = 0.18/day = 65.70/year. Useful for seeing what each appliance actually costs to run. Biggest hogs usually: heating, hot water, tumble dryer, kettle (surprisingly).
A worked example
Try the defaults: wattage of 1,000, daily hours of use of 2, electricity rate per kwh of 0.3. The tool returns 219.00. You can adjust any input and the result updates as you type — no submit button, no reload. That's the real power here: seeing how sensitive the output is to one or two assumptions.
What moves the number most
The result responds to Wattage, Daily Hours of Use, and Electricity Rate per kWh. Frequency and unit price pull the total in different directions. The biggest surprise for most people is how small recurring amounts compound into large annual figures — that's where this calculation earns its keep.
The formula behind this
Daily kWh × rate × 365. Everything the calculator does is shown in the formula box below, so you can check the math against your own spreadsheet if you want.
Why run the calculation
Utility bills creep. Small annual increases stack into meaningful differences over a decade. Running this once a year and switching providers when the gap widens is one of the easiest ways to keep household costs in check.
What this doesn't capture
Usage varies month-to-month; tariffs change; discounts come and go. The figure here is a clean baseline — your actual annual bill will fluctuate around it. Use the calculation to benchmark providers, not as a prediction of a specific bill.
What to calculate alongside this
One figure by itself is fragile. The refrigerator running cost calculator, the energy bill calculator, and the air conditioning cost calculator cover adjacent ground — the answer to any one of them changes how you read the output from this tool. Worth a few minutes each, honestly.
Energy cost produces an annual figure based on the inputs provided.
Inputs
This example uses typical values for illustration. Adjust the inputs above to match a specific situation and see how the result changes.
Sources & Methodology
Methodology
Daily kWh × rate × 365.
References
Frequently Asked Questions
Actual vs nameplate wattage?
Biggest home energy hogs?
Standby power?
Energy rating check?
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