kWh to Kilojoule
Convert kWh to Kilojoule instantly. Free online engineering unit converter with exact formula, conversion table and FAQ.
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Formula
kJ = kWh × 3600
kWh = kJ × 0.000277778
Conversion table
| 1 kWh | 3600 kJ |
| 5 kWh | 18000 kJ |
| 10 kWh | 36000 kJ |
| 20 kWh | 72000 kJ |
| 50 kWh | 180000 kJ |
| 100 kWh | 360000 kJ |
| 500 kWh | 1800000 kJ |
| 1000 kWh | 3600000 kJ |
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Frequently asked questions
What is the source unit in this conversion?
The source unit is the kWh (kWh). A kilowatt-hour is 3.6 million joules.
What is the destination unit in this conversion?
The destination unit is the Kilojoule (kJ). Kilojoule is 1000 joule units.
How do I convert kWh to Kilojoule?
Multiply the kWh value by 3600. For example, 10 kWh × 3600 = 36000 kJ.
Is the kWh to Kilojoule conversion exact?
Yes. Both units belong to the same engineering measurement family (energy), so the ratio between them is a fixed, defined value rather than a measured approximation.
Where is this conversion commonly used?
It's used whenever a value expressed in kWh needs to be compared with, or reported in, Kilojoule, such as in engineering, scientific, or industrial calculations.
Can I convert Kilojoule back to kWh?
Yes. Multiply the Kilojoule value by 0.000277778 to get kWh.
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About this conversion
This page converts kWh (kWh) to Kilojoule (kJ) within the engineering converter.
A kilowatt-hour is 3.6 million joules. Kilojoule is 1000 joule units.
The formula is kJ = kWh × 3600, based on each unit's fixed relationship to the energy base unit.
The conversion is exact, since it relies on a fixed numerical ratio between the two units rather than a measured or approximate value.
Use the calculator above for instant results, or the table below for common kWh values already converted to Kilojoule.