Energy
Convert megajoule (MJ) to kilowatt-hour (kWh). Energy is the capacity to do work or transfer heat — the currency of every heat and material balance.
1 MJ = 0.2777778 kWh
To convert megajoule to kilowatt-hour, multiply the MJ value by 0.2777778. To go the other way, divide by 0.2777778 (or multiply by 3.6).
| MJ | kWh |
|---|---|
| 1 | 0.2777778 |
| 2 | 0.5555556 |
| 5 | 1.388889 |
| 10 | 2.777778 |
| 25 | 6.944444 |
| 50 | 13.88889 |
| 100 | 27.77778 |
| 250 | 69.44444 |
| 500 | 138.8889 |
| 1000 | 277.7778 |
Heat duties integrate to energy in kJ, MJ, or BTU; utilities are billed in kWh or MMBTU.
A calorie, a BTU, and a joule are all energy — keep the conversion factors handy when a spec mixes them.
Worked example. A energy of 3.6 MJ is 1 kWh.
Multiply the value in MJ by 0.2777778 to get kWh. For example, 10 MJ = 2.777778 kWh.
1 MJ equals 0.2777778 kWh.
Heat duties integrate to energy in kJ, MJ, or BTU; utilities are billed in kWh or MMBTU.