Electrical calculator
Energy Consumption Calculator
Calculate energy used in kilowatt-hours from power and time.
Electrical calculator
Energy Consumption Calculator
Instant result
Result
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Enter values to calculate.
How to use
Follow these steps for a clear answer.
Enter the known values
Fill in the fields for your circuit or equipment.
Choose the conversion direction
Use the tabs when both directions are available.
Read the result
The result updates instantly as you type.
Frequently asked questions
Key distinctions behind the calculation.
How does the Energy Consumption calculation work?
It uses the formula E(kWh) = P(W) × t(h) ÷ 1000.