ENERGY CONVERSION
Kilowatt-hour to Joule.
Convert kilowatt-hour (kWh) to joule (J), with the math explained.
1 kWh = 3,600,000 J
THE MATH, MADE SIMPLE
How to convert kilowatt-hour to joule
Multiply your kilowatt-hour value by 3,600,000 to get the equivalent in joule. Both units are normalized through the joule.
J = kWh × 3,600,00010 kWh = 36,000,000 J
Result rounded to 12 significant digits. Change the precision in the calculator to suit your task.QUICK REFERENCE
kWh to J conversion table
| Kilowatt-hour (kWh) | Joule (J) |
|---|---|
| 1 kWh | 3,600,000 J |
| 2 kWh | 7,200,000 J |
| 5 kWh | 18,000,000 J |
| 10 kWh | 36,000,000 J |
| 20 kWh | 72,000,000 J |
| 50 kWh | 180,000,000 J |
| 100 kWh | 360,000,000 J |
| 500 kWh | 1,800,000,000 J |
| 1,000 kWh | 3,600,000,000 J |
About the kilowatt-hour
The kilowatt-hour (kWh) is a unit of energy. One kilowatt-hour equals 3,600,000 joule (base unit) in this calculator.
All kilowatt-hour conversionsAbout the joule
The joule (J) is a unit of energy. One joule equals 1 joule (base unit) in this calculator.
All joule conversionsCommon questions
What is 1 kWh in J?
One kilowatt-hour equals 3,600,000 J. Use the formula above for other values.
Why might another calculator show a different last digit?
Calculators may round at different stages or use different unit conventions. We keep full JavaScript numeric precision during calculation and round only for display. Choose up to 15 significant digits. Check US versus UK units and the notes for this category.
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