kWh to J
Convert Kilowatt-hour to Joule
Convert Kilowatt-hour to Joule instantly with the tool above. The conversion factor is 3,600,000, meaning 1 kilowatt-hour equals 3,600,000 joules. Type any value and the result updates immediately — no ads, no page reloads, no clutter.
Type a number above. The result updates instantly — no buttons, no reloads.
1 Kilowatt-hour = 3,600,000 joules
1 Joule = 0.000000277778 kilowatt-hours
Quick reference
Common kilowatt-hours converted to joules at a glance.
| kWh | J |
|---|---|
| 1 | 3,600,000 |
| 2 | 7,200,000 |
| 5 | 18,000,000 |
| 10 | 36,000,000 |
| 25 | 90,000,000 |
| 50 | 180,000,000 |
| 100 | 360,000,000 |
How to convert kilowatt-hours to joules
To convert a value from kilowatt-hours to joules, multiply the kilowatt-hour value by 3,600,000 joules. For example, 10 kilowatt-hours × that factor = 36,000,000 joules.
This kilowatt-hour to joule converter runs entirely in your browser, so results appear instantly with no page reload, no advertisements and no sign-up.
Frequently asked questions
How many joules are in 1 kilowatt-hour?+
1 kilowatt-hour is equal to 3,600,000 joules.
How do you convert kilowatt-hours to joules?+
To convert kilowatt-hours to joules, multiply the kilowatt-hour value by 3,600,000. For example, 10 kilowatt-hours × 3,600,000 = 36,000,000 joules.
What is the formula to convert kilowatt-hours to joules?+
Kilowatt-hour → Joule: value × 3,600,000. Equivalently, 1 kilowatt-hour = 3,600,000 joules.
Is this Kilowatt-hour to Joule converter free to use?+
Yes. This kilowatt-hour to joule converter is completely free, works instantly in your browser, and contains no advertisements, popups or sign-up.