Convert megajoule to joule
Enter the value to convert from megajoule to joule.
How to Convert Megajoule to Joule
Converting megajoule to joule is straightforward using our conversion calculator.
Conversion Formula
J = MJ × 1000000Reverse conversion: Convert joule to megajoule
Comparison: Megajoule vs Joule
When to Use Each Unit
Megajoule: Used for fuel energy content, large-scale heating, industrial processes, and transportation energy.
Joule: Universal scientific unit for all forms of energy: mechanical, electrical, thermal, chemical, and nuclear energy worldwide.
Common Conversion Values
- 1 MJ = 1,000 kJ
- 1 MJ ≈ 0.278 kWh
- 1 MJ ≈ 948 BTU
- 1 MJ ≈ 0.00948 therm
About Megajoule
Definition: The megajoule (symbol: MJ) is equal to one million joules, used for large-scale energy measurements.
History: Large-scale metric prefix for measuring substantial energy quantities in industrial and scientific applications.
Current Use: Used for fuel energy content, large-scale heating, industrial processes, and transportation energy.
Examples: Gasoline liter: 32 MJ, natural gas m³: 37 MJ, coal kg: 24 MJ, home daily energy: 50-150 MJ
About Joule
Definition: The joule (symbol: J) is the SI unit of energy, equal to the energy expended when applying one newton of force through one meter of distance.
History: Named after English physicist James Prescott Joule in 1889. Established the mechanical equivalent of heat and energy conservation.
Current Use: Universal scientific unit for all forms of energy: mechanical, electrical, thermal, chemical, and nuclear energy worldwide.
Examples: Apple: 350,000 J, car battery: 4.3 MJ, lightning bolt: 1-5 billion J, human daily intake: 8-10 MJ