Megajoule is a unit used in energy and power conversions and practical measurement work.
The prefix mega- (one million, from Greek megas, great) was formally adopted with the SI in 1960; the megajoule is used for fuel energy content and large-scale energy balances.
Measurement system: SI, practical energy and power-measurement usage. SI equivalent: 1 MJ = 1.000000e+6 J.
Megajoule facts
- Unit name
- Megajoule
- Symbol
- MJ
- Category
- Energy and Power
- Measurement system
- SI, practical energy and power-measurement usage
- SI equivalent
- 1 MJ = 1.000000e+6 J
- Common uses
- Heating, electricity, nutrition, fuel and engineering
Definition of the megajoule
Megajoule is a unit used in energy and power conversions and practical measurement work.
Measurement system and SI relationship
SI, practical energy and power-measurement usage
SI equivalent: 1 MJ = 1.000000e+6 J
History of the megajoule
The prefix mega- (one million, from Greek megas, great) was formally adopted with the SI in 1960; the megajoule is used for fuel energy content and large-scale energy balances.
Where is the megajoule used?
Heating, electricity, nutrition, fuel and engineering