Converters
12
Joules to Kilowatt-hours Converter
Convert joules to kilowatt-hours instantly with the formula, worked examples, rounding guidance, and related energy conversions.
Units
85
Mode
Live
Pair-specific conversion guide
Joule to Kilowatt-hour formula
Use this Joule to Kilowatt-hour page for direct energy conversions. The calculator keeps the exact J to kWh relationship on the page, so the result, formula, and examples all describe this specific pair.
Formula model
1 J = 2.77777777778E-07 kWh
1 Joule equals
Quick factor: 1 J = 2.77777777778E-07 kWh.
The current calculator value is 1 J, which equals 2.77777777778E-07 kWh.
Use the conversion table to compare 1 J 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 J and kWh. Full decimal precision is kept for the calculation; only the displayed value is rounded for readability.
Reference: NIST conversion factorsEnergy
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Kilowatt-hours to Joules Converter
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Conversion table
1 Joule equals
| Unit | Value |
|---|---|
| Kilojoule kJ | 0.001 |
| Calorie cal | 0.239005736138 |
| Kilocalorie kcal | 0.000239005736138 |
| Watt-hour Wh | 0.000277777777778 |
| Kilowatt-hour kWh | 2.77777777778E-07 |
| British thermal unit BTU | 0.000947817120313 |
FAQ
Joule to Kilowatt-hour questions
How do you convert Joule to Kilowatt-hour?
Use the formula 1 J = 2.77777777778E-07 kWh. As a quick check, 1 J equals 2.77777777778E-07 kWh.
Is the Joule to Kilowatt-hour conversion exact?
This page uses fixed constants from the Converter Science catalog. Displayed results are rounded only to keep the page readable.