Calorie(cal)
The calorie is a historical energy unit equal to 4.184 joules.
Reviewed
- Symbol
- cal
- Quantity
- Energy
- Measurement system
- Other
- SI classification
- Non-SI unit
- Reference unit
- Joule
- Exact relationship
- 1 cal = 4.184 J exactly
What the calorie is
The calorie is a traditional energy unit still familiar in chemistry and food contexts, though the joule is the standard SI unit.