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Electricity Cost per Device Calculator

Calculate how much electricity a single device costs per day, month and year.

Energy
Inputs

Calculate now

Enter power, usage time and electricity price. The calculator shows cost and consumption for a single device.

Display currencyChoose the symbol shown in inputs and results. The calculation itself stays the same.
W
Often shown on the device label or in the manual.
h
days
€/kWh
Guidance

Electricity Cost per Device Calculator:

Use the result as a scenario comparison, not only as a single number. For energy calculators, runtime, price assumptions, efficiency and seasonal effects usually drive the biggest differences.

How to use the result better

  • Calculate one realistic and one efficient scenario.
  • Compare monthly and annual values so small daily amounts are not underestimated.
  • Check inputs against real tariff, consumption or device data.

Common mistake

The most common mistake is an overly optimistic usage profile: runtimes too short, prices too low or missing base costs.

How exact is the result?

It is a solid estimate when inputs are realistic. Bills may differ because of tariff details, weather, usage and supplier factors.

Why calculate several scenarios?

Scenarios show which input has the strongest impact, and that is usually where optimization should start.

Next steps

Useful calculators to continue

After the result, related calculators help you understand costs, alternatives and next steps more clearly.

Understand costsPut consumption, prices and running costs into context.
Find savings potentialCompare alternatives and identify useful next steps.
More clarityUse related energy calculators instead of isolated single values.

Related calculators

Electricity Cost CalculatorCalculate electricity cost per hour, day, month and year. Useful for appliances, heaters, refrigerators, home office, power-hungry devices and tariff checks.Electricity cost per kWh calculatorCalculate electricity cost per hour, day, month and year. Useful for appliances, heaters, refrigerators, home office, power-hungry devices and tariff checks.Appliance electricity cost calculatorCalculate electricity cost per hour, day, month and year. Useful for appliances, heaters, refrigerators, home office, power-hungry devices and tariff checks.Photovoltaic CalculatorCalculate annual solar yield, self-consumption, feed-in, annual savings and rough payback period for your PV system online.

How to use the result well

  • Compare several scenarios: Change the key values and check how much the result changes.

  • Use related calculators: Decisions often become clearer when you also calculate costs, timeframes or alternatives.

More Energy calculatorsFind additional tools that fit this calculation topic.

Formula

Watts ÷ 1000 × hours × electricity price = electricity cost.

When is this useful?

This is especially useful for dryers, electric heaters, gaming PCs, fridges, air conditioners or devices running continuously.

FAQ

Frequently asked questions

How do I calculate the electricity cost of a device?

Divide the device power in watts by 1000, multiply by usage hours and then by your electricity price per kWh.

Which devices often cause high electricity costs?

Dryers, electric heaters, air conditioners, old fridges, gaming PCs and always-on devices are often relevant.