Convert Megajoules per Kilogram to Watt-hours per Kilogram
1 megajoule per kilogram = 277.77778 watt-hours per kilogram. Multiply the number of megajoules per kilogram by 277.777777778.
1 MJ/kg = 277.7777778 Wh/kg
Multiply the number of megajoules per kilogram by 277.777777778.
Results are rounded for display. Double-check values for critical work.
Popular specific energy conversions
Megajoules per Kilogram to Watt-hours per Kilogram table
| Megajoules per Kilogram | Watt-hours per Kilogram |
|---|---|
| 1 MJ/kg | 277.77778 Wh/kg |
| 2 MJ/kg | 555.55556 Wh/kg |
| 3 MJ/kg | 833.33333 Wh/kg |
| 4 MJ/kg | 1,111.1111 Wh/kg |
| 5 MJ/kg | 1,388.8889 Wh/kg |
| 10 MJ/kg | 2,777.7778 Wh/kg |
| 20 MJ/kg | 5,555.5556 Wh/kg |
| 25 MJ/kg | 6,944.4444 Wh/kg |
| 50 MJ/kg | 13,888.889 Wh/kg |
| 100 MJ/kg | 27,777.778 Wh/kg |
| 500 MJ/kg | 138,888.89 Wh/kg |
| 1000 MJ/kg | 277,777.78 Wh/kg |
About these units
The megajoule per kilogram (MJ/kg) is a metric unit of specific energy, equal to 1,000,000 joules per kilogram.
The watt-hour per kilogram (Wh/kg) is a metric unit of specific energy, equal to 3,600 joules per kilogram.
Going the other way, 1 watt-hour per kilogram = 0.0036 megajoules per kilogram. Specific energy is energy per unit mass. It is how battery cells are compared, typically 150 to 300 Wh/kg for lithium-ion, and how fuels are rated, with diesel near 45 MJ/kg. Convert between the battery, fuel and food-energy units.
Frequently asked
- How many watt-hours per kilogram are in a megajoule per kilogram?
- 1 megajoule per kilogram = 277.77778 watt-hours per kilogram.
- How do you convert megajoules per kilogram to watt-hours per kilogram?
- Multiply the number of megajoules per kilogram by 277.777777778.
- What is 10 MJ/kg in Wh/kg?
- 10 MJ/kg = 2,777.7778 Wh/kg.