Calories to Joules Converter
EngineeringJoules, calories, kilowatt-hours and more.
How to convert Calories to Joules
Multiply the calories value by 4.184: 1 cal = 4.184 J. Going the other way, 1 J = 0.239006 cal, so divide by 4.184 or use the Joules to Calories converter.
About these units
Calories (cal)
The calorie used here is the thermochemical calorie, exactly 4.184 joules, roughly the energy needed to warm one gram of water by one degree Celsius. Food calories are actually kilocalories.
Joules (J)
The joule is the SI unit of energy: the work done by a force of one newton over one meter. Lifting a small apple one meter takes about one joule.
Calories to Joules conversion table
| Calories (cal) | Joules (J) |
|---|---|
| 1 cal | 4.184 J |
| 2 cal | 8.368 J |
| 3 cal | 12.552 J |
| 4 cal | 16.736 J |
| 5 cal | 20.92 J |
| 10 cal | 41.84 J |
| 20 cal | 83.68 J |
| 25 cal | 104.6 J |
| 50 cal | 209.2 J |
| 100 cal | 418.4 J |
| 500 cal | 2,092 J |
| 1,000 cal | 4,184 J |
More calories conversions
- Calories to Kilocalories1 cal = 0.001 kcal
- Calories to Calories Nutritional1 cal = 0.001 Cal
- Calories to Thermochemical Calories1 cal = 1 calth
- Calories to Watt Hours1 cal = 0.00116222 Wh
- Calories to British Thermal Units1 cal = 0.00396565 BTU
- Calories to Ergs1 cal = 4.184e+7 erg
See every unit on the Energy Converter.