Electricity Cost Calculator
Estimate appliance electricity cost from power use, daily running time, and your electricity rate.
Estimate Electricity Cost
W
hrs
£
/kWh
Electricity cost calculator guide for appliance running cost
WeCovr's electricity cost calculator estimates appliance running cost from wattage, daily usage, and electricity price per kWh. It is useful for energy budgeting and appliance comparisons.
How this electricity cost calculator works
The calculator converts appliance wattage into kilowatt-hours based on daily usage, then multiplies that by your electricity rate.
It shows daily, monthly, and yearly cost estimates to make the result easier to use in household planning.
Uses wattage, hours per day, and cost per kWh.
Returns daily, monthly, and yearly electricity cost.
Useful for comparing running costs across appliances.
Why real energy bills can still differ
Standing charges, variable tariffs, thermostat cycling, duty cycles, and real-world usage patterns can all change the amount you actually pay.
How to use the result
Use the output as a variable-cost estimate when budgeting or comparing appliances, then compare it with your actual tariff details for a fuller picture.
Electricity cost factors
| Factor | What it changes | Why it matters | Example |
|---|---|---|---|
| Wattage | Energy use rate | Higher-powered appliances consume more when running | 800W versus 2000W |
| Hours of use | Total kWh used | Longer use increases cost | 1 hour versus 5 hours per day |
| Electricity rate | Price per kWh | Tariff level changes the final bill | £0.20 versus £0.35 per kWh |
Related WeCovr resources
FAQs
Does this include standing charges?
No. It estimates variable electricity cost only, not the fixed part of an energy bill.
Why can real appliance cost be different from the estimate?
Because many appliances cycle on and off rather than drawing full power constantly.
Can this help compare appliances?
Yes. It is useful for comparing broad running costs when wattage and usage are known.
What is kWh?
A kilowatt-hour is a measure of energy use and is the standard unit used for electricity billing.
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