Conversion Formula
$$E_{\text{MJ}} = E_{\text{kWh}} \times 3.6$$
Multiply kilowatt-hours by 3.6 to get megajoules.
kWh to MJ Conversion Table
| Kilowatt-hour (kWh) | Megajoule (MJ) |
|---|---|
| 0.1 | 0.36 |
| 0.5 | 1.8 |
| 1 | 3.6 |
| 2 | 7.2 |
| 5 | 18 |
| 10 | 36 |
| 25 | 90 |
| 50 | 180 |
| 100 | 360 |
| 250 | 900 |
| 500 | 1,800 |
| 1,000 | 3,600 |
kWh to MJ in Engineering
Energy conversions span mechanical, thermal, electrical, and chemical engineering. BTU and therms are standard for HVAC and natural gas, kWh for electrical systems, and joules for scientific calculations.
Kilowatt-hour: Standard unit for electrical energy billing and consumption. 1 kWh = 3.6 MJ.
Megajoule: Used for fuel energy content, large thermal loads, and energy auditing.