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Kilowatt-hours to Joules Converter
Convert kilowatt-hours to joules instantly and accurately. 1 kWh = 3600000 J. Type any value below β the result updates as you type.
How to use this tool
- 1Enter the value in kilowatt-hours.
- 2Read the converted result in joules instantly.
- 3Use the swap button to reverse the conversion, or pick any other unit.
Frequently asked questions
How do you convert kilowatt-hours to joules?+
1 kWh = 3600000 J. To convert, multiply the number of kilowatt-hours by the conversion factor between kWh and J. This calculator does it automatically as you type.
Is this kilowatt-hours to joules converter accurate?+
Yes. It uses exact SI/standard conversion factors, so results match official energy definitions to full precision.
Is it free and private?+
Completely free with no sign-up. All conversion happens in your browser β nothing is uploaded to a server.
Learn more
- Kilowatt-hours vs Joules: what's the difference?
- Kilowatt-hours to Joules conversion table
- How many joules are in a kilowatt-hour?