Converters
12
Kilowatt-hours to Joules Converter
Convert kilowatt-hours to joules instantly with the formula, worked examples, rounding guidance, and related energy conversions.
Units
85
Mode
Live
Pair-specific conversion guide
Kilowatt-hour to Joule formula
Use this Kilowatt-hour to Joule page for direct energy conversions. The calculator keeps the exact kWh to J relationship on the page, so the result, formula, and examples all describe this specific pair.
Formula model
1 kWh = 3600000 J
1 Kilowatt-hour equals
Quick factor: 1 kWh = 3600000 J.
The current calculator value is 1 kWh, which equals 3600000 J.
Use the conversion table to compare 1 kWh with the other units in the same category.
Energy units can describe electricity, heat, or nutrition, so retain the unit symbol with every result.
Precision and rounding
The calculation uses the catalog's fixed conversion factors between kWh and J. Full decimal precision is kept for the calculation; only the displayed value is rounded for readability.
Reference: NIST conversion factorsEnergy
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Joules to Kilowatt-hours Converter
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Conversion table
1 Kilowatt-hour equals
| Unit | Value |
|---|---|
| Joule J | 3600000 |
| Kilojoule kJ | 3600 |
| Calorie cal | 860420.650096 |
| Kilocalorie kcal | 860.420650096 |
| Watt-hour Wh | 1000 |
| British thermal unit BTU | 3412.14163313 |
FAQ
Kilowatt-hour to Joule questions
How do you convert Kilowatt-hour to Joule?
Use the formula 1 kWh = 3600000 J. As a quick check, 1 kWh equals 3600000 J.
Is the Kilowatt-hour to Joule conversion exact?
This page uses fixed constants from the Converter Science catalog. Displayed results are rounded only to keep the page readable.