Joule(J)
The joule is the SI unit of energy, equal to one newton-meter.
Reviewed
- Symbol
- J
- Quantity
- Energy
- Measurement system
- SI
- SI classification
- SI derived unit
- Reference unit
- Joule
- Exact relationship
- 1 J = 1 N·m
What the joule is
The joule is the basic SI unit for energy and is used across physics, engineering, and daily technical calculations.