🧮 Free tool

Electricity consumption calculator

Calculate how many kWh an appliance uses and how much it may cost per day, month and year. You can also add standby consumption and try typical appliance presets.

Enter your data

Start with a preset and then adjust the values to your real situation.

Check the appliance label or technical specifications.

This calculator estimates electricity consumption costs. It does not necessarily represent the total bill, which may include contracted power, taxes, fees and other charges.

Result

Daily consumption0 kWh
Monthly consumption0 kWh
Daily cost0 €
Monthly cost0 €
Yearly consumption0 kWh
Yearly cost0 €
Standby cost / month0 €
Standby cost / year0 €
Estimated total cost, including standby0 € / año

Enter your data to see the calculation.

How to use this calculator

1. Measure

If possible, measure the appliance with a plug-in energy meter over a representative period. For refrigerators and climate-control equipment, a real reading is usually more useful than assuming they run continuously at rated power.

2. Calculate

Enter the power or measured consumption, usage hours and approximate price per kWh. Then compare monthly and yearly costs.

3. Decide

If an appliance represents a significant part of your spending, consider usage habits, scheduling, maintenance or replacement.

Basic formula

For a simple estimate:

kWh = (vatios ÷ 1000) × horas de uso

Then:

coste = kWh × precio por kWh

Standby consumption is calculated separately and added to the main consumption.