Kilowatt-hours to Kilojoules Converter
1 kilowatt-hour = 3,600 kilojoules
1 kilowatt-hour equals 3,600 kilojoules
How to convert kilowatt-hours to kilojoules
Calories here are thermochemical (4.184 J), while BTU uses the International Table definition. A kilowatt-hour is energy (3.6 MJ), not power; a food Calorie is a kilocalorie.
kJ = kWh × 3600One kilowatt-hour is 3600 kilojoules, so a single multiplication converts any value.
36,000 kJ = 10 × 3600Kilowatt-hours to kilojoules conversion table
Common values in kilowatt-hours, converted to kilojoules.
| Kilowatt-hours (kWh) | Kilojoules (kJ) |
|---|---|
| 1 | 3,600 |
| 2 | 7,200 |
| 3 | 10,800 |
| 4 | 14,400 |
| 5 | 18,000 |
| 10 | 36,000 |
| 20 | 72,000 |
| 25 | 90,000 |
| 50 | 180,000 |
| 100 | 360,000 |
| 250 | 900,000 |
| 500 | 1,800,000 |
| 1,000 | 3,600,000 |
About these units
kilowatt-hourkWh
One kilowatt sustained for one hour: exactly 3.6 megajoules. The billing unit for electricity.
kilojoulekJ
One thousand joules. The metric food-energy unit outside the United States.
Sources and precision
Table results are rounded to 8 significant digits; formula constants may be rounded to 10. Worked example answers use 6 significant digits. The converter starts at 6 significant digits and lets you change display precision. Calculations use the stored factors without intermediate rounding. Exact unit definitions do not make an input measurement more precise; conventional and measured factors follow the assumptions stated here.