Kilojoules to Kilowatt-hours Converter
1 kilojoule ≈ 0.000277777778 kilowatt-hours
1 kilojoule equals 0.000277778 kilowatt-hours
How to convert kilojoules to kilowatt-hours
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.
kWh = kJ × 0.0002777777778One kilojoule is 0.0002777777778 kilowatt-hours, so a single multiplication converts any value.
0.00277778 kWh ≈ 10 × 0.0002777777778Kilojoules to kilowatt-hours conversion table
Common values in kilojoules, converted to kilowatt-hours.
| Kilojoules (kJ) | Kilowatt-hours (kWh) |
|---|---|
| 1 | 0.00027777778 |
| 2 | 0.00055555556 |
| 3 | 0.00083333333 |
| 4 | 0.0011111111 |
| 5 | 0.0013888889 |
| 10 | 0.0027777778 |
| 20 | 0.0055555556 |
| 25 | 0.0069444444 |
| 50 | 0.013888889 |
| 100 | 0.027777778 |
| 250 | 0.069444444 |
| 500 | 0.13888889 |
| 1,000 | 0.27777778 |
About these units
kilojoulekJ
One thousand joules. The metric food-energy unit outside the United States.
kilowatt-hourkWh
One kilowatt sustained for one hour: exactly 3.6 megajoules. The billing unit for electricity.
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.