Megajoule per kilogram (MJ/kg)
Exactly one million J/kg. Fuel heating values are usually given in MJ/kg (gasoline is about 46 MJ/kg).
What is a megajoule per kilogram?
- Symbol
- MJ/kg
- Quantity
- Fuel Energy per Mass
- Unit system
- SI
- Definition
- Exactly one million J/kg. Fuel heating values are usually given in MJ/kg (gasoline is about 46 MJ/kg).
- Exact
- Yes, the value is exact by definition
- Source
- SI Brochure, 9th edition (BIPM, 2019)
Common applications
The usual unit for heating values of fuels such as gasoline, diesel, wood, coal and hydrogen.
Megajoule per kilogram in other fuel energy per mass units
- 1 MJ/kg = 1000000 J/kgJoule per kilogram
- 1 MJ/kg = 1000 kJ/kgKilojoule per kilogram
- 1 MJ/kg ≈ 0.2777777778 kWh/kgMegajoule per kilogram to Kilowatt-hour per kilogram converter
- 1 MJ/kg ≈ 277.7777778 Wh/kgWatt-hour per kilogram
- 1 MJ/kg ≈ 429.9226139 BTU/lbMegajoule per kilogram to BTU per pound converter
- 1 MJ/kg ≈ 238.8458966 kcal/kgKilocalorie (IT) per kilogram
Megajoule per kilogram quick reference
| Megajoule per kilogram | Kilowatt-hour per kilogram | BTU per pound | Joule per kilogram |
|---|---|---|---|
| 1 MJ/kg | ≈ 0.2777777778 kWh/kg | ≈ 429.9226139 BTU/lb | = 1000000 J/kg |
| 10 MJ/kg | ≈ 2.777777778 kWh/kg | ≈ 4299.226139 BTU/lb | = 10000000 J/kg |
| 100 MJ/kg | ≈ 27.77777778 kWh/kg | ≈ 42992.26139 BTU/lb | = 100000000 J/kg |
| 1000 MJ/kg | ≈ 277.7777778 kWh/kg | ≈ 429922.6139 BTU/lb | = 1000000000 J/kg |
Where the megajoule per kilogram fits
The next smaller fuel energy per mass unit is the kilocalorie (IT) per kilogram (kcal/kg). 1 MJ/kg ≈ 238.8458966 kcal/kg, and 1 kcal/kg = 0.0041868 MJ/kg.
The next larger fuel energy per mass unit is the kilowatt-hour per kilogram (kWh/kg). 1 MJ/kg ≈ 0.2777777778 kWh/kg, and 1 kWh/kg = 3.6 MJ/kg.
Frequently asked questions
- How many kilowatt-hours per kilogram are in one megajoule per kilogram?
- One megajoule per kilogram ≈ 0.2777777778 kWh/kg (kilowatt-hours per kilogram).
- How many BTUs per pound are in one megajoule per kilogram?
- One megajoule per kilogram ≈ 429.9226139 BTU/lb (BTUs per pound).
- How many joules per kilogram are in one megajoule per kilogram?
- One megajoule per kilogram = 1000000 J/kg (joules per kilogram).