⚡ Energy
Kwh to Joules Converter
Convert kWh to joules instantly. Enter any value and get the result. Includes a conversion table and the exact formula.
Quick answer: To convert kWh to joules, multiply by 3600000. For example, 1 kWh = 3600000 joules. Use the calculator below for any value.
kWh to joules
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Common conversions
| Kwh | Joules |
|---|
Formula:
How to convert kWh to joules
1
Enter your value
Type the number of kwh you want to convert into the left box. The result in joules appears instantly in the right box. You can also type into the right box to convert in the other direction.
2
Use the swap button
Click the ⇄ Swap button to reverse the conversion — Joules to Kwh. Your current value carries across so you don't have to re-enter anything.
3
About Kwh and Joules
kWh and joules are both units of energy. Use this converter to switch between them instantly.
💡 Did you know?
1 kWh = 3.6 megajoules = 3,600,000 joules. A UK home uses ~8 kWh/day of electricity. UK petrol contains ~9.5 kWh per litre — useful for comparing EV efficiency (in kWh/100km) to petrol cars (in L/100km).
📊 Common conversions at a glance
| Kwh | Joules |
|---|---|
| 0.001 | 3600 |
| 0.01 | 3.6e+04 |
| 0.1 | 3.6e+05 |
| 1 | 3.6e+06 |
| 5 | 1.8e+07 |
| 10 | 3.6e+07 |
Reviewed for 2026. Kwh ↔ Joules conversion factor verified against published reference data. Built by a UK-based qualified primary teacher and FA Level 2 coach as part of 247QuickTools' free utility-tools project.