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Home Appliance Energy Cost Calculator

Calculate electricity costs for home appliances. Check monthly, yearly, and 5-year costs and compare devices.

Compare energy costs of two devices and calculate payback period

Enter the purchase cost of the new device to calculate payback period

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How does this calculator work?

Calculate electricity costs for home appliances. Check monthly, yearly, and 5-year costs and compare devices.

Free online calculator. Accurate calculations. Easy to use.

Frequently Asked Questions

Our energy calculator on estim.at helps you calculate electricity costs for home appliances. Simply enter the appliance power (W), daily usage time (h), usage frequency, and electricity rate per kWh. The calculator will automatically calculate monthly, yearly, and 5-year costs.
The calculator includes presets for popular appliances: fridge (40W, 24h/d), gaming PC (400W, 4h/d), LED bulb (10W, 5h/d), old bulb (60W, 5h/d), kettle (2000W, 15min/d), washing machine, dishwasher, TV, laptop. You can also enter your own appliance with custom power.
Comparison mode allows you to compare energy costs of two devices (e.g., old vs new fridge). The calculator shows annual savings and payback period - how long it takes for energy savings to cover the cost of a new appliance.
Payback period is the time needed for energy savings to cover the purchase cost of a new appliance. If a new appliance costs £2000 and saves £400 per year, the payback period is 5 years. The calculator automatically calculates this period based on the difference in energy costs and appliance price.
Yes, the calculator allows you to add standing charges which are billed regardless of energy consumption. These charges vary by country and energy provider.