UnitConKilowatt-Hours to Megajoules Converter
Convert kilowatt-hours to megajoules for energy audits, battery specifications, and scientific reporting where SI units are required. The megajoule (MJ) is the SI-coherent alternative to the kWh for large energy values.
Formula
Multiply kilowatt-hours by 3.6 to get megajoules. To reverse, divide megajoules by 3.6 to get kilowatt-hours.
Quick reference
| Kilowatt-hour (kWh) | Megajoule (MJ) |
|---|---|
| 0.1 | 0.36 |
| 0.5 | 1.8 |
| 1 | 3.6 |
| 2 | 7.2 |
| 5 | 18 |
| 10 | 36 |
| 50 | 180 |
| 100 | 360 |
| 500 | 1,800 |
| 1000 | 3,600 |
About these units
Kilowatt-hour
The kilowatt-hour has been the commercial electrical energy unit since the late 19th century, embedded in electricity tariffs and meter design worldwide.
Megajoule
The megajoule (1,000,000 J) is the natural SI scale for household and vehicle energy. Battery specifications, food energy density, and fuel calorific values are increasingly expressed in MJ in scientific literature.