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Electricity Cost Calculator - Online Appliance Running Expense

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Electricity Cost Calculator

Estimate the running cost and energy consumption of your home appliances instantly. Perfect for budgeting and energy saving.

Switch between Watts (W) and Kilowatts (kW) – we handle the conversion automatically.
hours / day
$ per kWh
Check your latest electricity bill for the exact rate.
Estimated Running Cost
$0.00
Per Day
$0.00
Per Month (30 days)
$0.00
Per Year (365 days)

Daily Energy Usage: 0 kWh

Monthly Energy Usage: 0 kWh

Yearly Energy Usage: 0 kWh

Frequently Asked Questions

We multiply the appliance’s power (in kilowatts) by the daily usage hours to get daily kilowatt-hours (kWh). Then multiply that kWh by your electricity rate (per kWh) to get the daily cost. Monthly cost assumes 30 days, yearly 365 days.

A kilowatt-hour is a unit of energy. Using 1,000 watts for one hour consumes exactly 1 kWh. Your electricity bill is typically charged by the number of kWh you use.

Look for a label or sticker on the back or bottom of the appliance, often showing watts (W) or amps/volts. You can also check the user manual or manufacturer’s website.

You can manually add standby power to the main wattage, or calculate it separately. Many appliances consume a small amount when turned off; if known, increase the power input accordingly.

Use energy-efficient appliances, turn off devices when not in use, optimize run times (e.g., run washing machines with full loads), and leverage off-peak rates if available. This calculator helps you identify the biggest energy hogs!

Check your most recent utility bill – the price per kilowatt-hour (often listed as $/kWh or ¢/kWh) should be clearly shown. You can also contact your energy provider or visit their website.
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