Calorie (cal)
The thermochemical calorie: exactly 4.184 joules.
Result
1 calorie = 4.184 joules
Calorie at a glance
| Unit name | Calorie (plural: calories) |
|---|---|
| Symbol | cal |
| Quantity measured | Energy |
| Measurement system | Metric |
| Also known as | cal, small calorie, gram calorie |
| Definition exact? | Yes — exact by definition |
1 calorie in other energy units
| Unit | 1 cal equals |
|---|---|
| Joule | 4.184 J |
| Kilojoule | 0.004184 kJ |
| Megajoule | 0.000004184 MJ |
| Kilocalorie | 0.001 kcal |
| Watt-hour | 0.001162222 Wh |
| Kilowatt-hour | 0.000001162 kWh |
| Megawatt-hour | 1.16222222 × 10⁻⁹ MWh |
| Electronvolt | 2.6114474 × 10¹⁹ eV |
| British thermal unit | 0.003965667 BTU |
| Therm | 3.96566683 × 10⁻⁸ thm |
| Foot-pound | 3.08596003 ft·lb |
Frequently asked questions
- What is a calorie?
- The thermochemical calorie: exactly 4.184 joules.
- What is the symbol for the calorie?
- The symbol for the calorie is cal. It measures energy.
- How many joules are in a calorie?
- 1 calorie = 4.184 joules.
- How many kilojoules are in a calorie?
- 1 calorie = 0.004184 kilojoules.
- How many kilocalories are in a calorie?
- 1 calorie = 0.001 kilocalories.