About this tool
Convert kilowatt-hours to joules using the selected units. This page explains the values requested and the method used so you can check whether the result fits your purpose.
How to use it
Enter a value, then choose the source and destination units from the Energy group.
Press Calculate, then review the result and the method below. Use Reset to clear the values in the calculator panel.
Method used
The converter changes the entered value between the selected units using a fixed conversion relationship.
Important assumptions and limits
Use the unit labels shown in the converter. Fuel-economy and fluid-volume pages state the relevant UK or US convention where needed.
Conversion note: This page uses the units shown in the fields. Review the labels carefully where UK and US conventions differ.
Questions about this result
Are the values I enter sent to The Decimal Space?
No. This calculator processes the values in your browser. This page does not require a calculator account or a server-side save function.
Can I use this for an important decision?
Check the inputs, units, formula and any rounding. For a decision with legal, tax, financial, medical, engineering or safety consequences, use an official source or obtain advice from an appropriately qualified professional.
Why might a result differ from another calculator?
Different tools can use different inputs, rounding, units, assumptions or formulas. Compare the calculation method rather than relying only on a displayed number.