Kilowatt-hours to Joules (kWh to J)
Free online kilowatt-hour to joule converter. Type a value, get an instant exact result — plus the formula, a ready-made conversion table, and reverse conversion.
ENERGY CONVERTER — INSTANT RESULT
Formula: multiply the kilowatt-hour value by 3,600,000 — i.e. J = kWh × 3,600,000
Quick check: 1 kWh = 3,600,000 J
Quick check: 1 kWh = 3,600,000 J
Kilowatt-hours to Joules conversion table
| Kilowatt-hours (kWh) | Joules (J) |
|---|---|
| 1 kWh | 3,600,000 J |
| 2 kWh | 7,200,000 J |
| 3 kWh | 10,800,000 J |
| 4 kWh | 14,400,000 J |
| 5 kWh | 18,000,000 J |
| 6 kWh | 21,600,000 J |
| 7 kWh | 25,200,000 J |
| 8 kWh | 28,800,000 J |
| 9 kWh | 32,400,000 J |
| 10 kWh | 36,000,000 J |
| 15 kWh | 54,000,000 J |
| 20 kWh | 72,000,000 J |
| 25 kWh | 90,000,000 J |
| 30 kWh | 108,000,000 J |
| 40 kWh | 144,000,000 J |
| 50 kWh | 180,000,000 J |
| 75 kWh | 270,000,000 J |
| 100 kWh | 360,000,000 J |
| 250 kWh | 900,000,000 J |
| 500 kWh | 1,800,000,000 J |
| 1,000 kWh | 3,600,000,000 J |
How to convert kilowatt-hours to joules
To convert kilowatt-hours to joules, multiply the amount in kilowatt-hours by 3,600,000. For example, 10 kWh = 36,000,000 J. To convert in the other direction, divide by the same factor, or use the ⇄ swap button above.
Convert between joules, calories, BTU, kilowatt-hours and foot-pounds. The joule is the SI unit of energy; the thermochemical calorie is defined as exactly 4.184 J.
Frequently asked questions
How many joules are in one kilowatt-hour?
One kilowatt-hour is exactly 3,600,000 joules.
How do I convert kWh to J?
Multiply the kWh value by 3,600,000 to get J. The converter at the top of this page does this automatically and works in both directions.
How much is 100 kilowatt-hours in joules?
100 kilowatt-hours equals 360,000,000 joules.