The joule is the SI derived unit of energy. It is used for work, heat and energy quantities.
The joule became the standard SI reference for energy as mechanics and thermodynamics were unified in modern measurement.
Measurement system: International System of Units (SI). SI equivalent: Base SI energy unit.
Joule facts
- Unit name
- Joule
- Symbol
- J
- Category
- Energy and Power
- Measurement system
- International System of Units (SI)
- SI equivalent
- Base SI energy unit
- Common uses
- Thermodynamics, energy balances and scientific calculations
Definition of the joule
The joule is the SI derived unit of energy. It is used for work, heat and energy quantities.
Measurement system and SI relationship
International System of Units (SI)
SI equivalent: Base SI energy unit
History of the joule
The joule became the standard SI reference for energy as mechanics and thermodynamics were unified in modern measurement.
Where is the joule used?
Thermodynamics, energy balances and scientific calculations