Convert Joules to Calories
1 J = 0.239006 cal
Conversion Table
| joules (J) | calories (cal) |
|---|---|
| 0.5 | 0.119503 |
| 1 | 0.239006 |
| 2 | 0.478011 |
| 5 | 1.195 |
| 10 | 2.3901 |
| 25 | 5.9751 |
| 50 | 11.9503 |
| 100 | 23.9006 |
| 250 | 59.7514 |
| 500 | 119.5 |
| 1000 | 239.01 |
How to Convert joules to calories
To convert joules to calories, multiply the value by the conversion factor:
For example: 10 J = 2.3901 cal
About joules and calories
The Conversion Formula
To convert joules to calories, multiply the value by the conversion factor: 1 J = 0.239006 cal. For a worked example, suppose you need to convert 25 J to calories: 25 × 0.239006 = 5.9751 cal. To convert in the opposite direction, divide by 0.239006, or equivalently multiply by 4.184.
About joules
The Joule (J) is the standard unit of energy in the International System of Units (SI). It is named after James Prescott Joule, who proved that heat is a form of energy. One Joule is the work done by a force of one Newton moving an object one meter. It is a small unit: lifting a small apple one meter takes about 1 Joule. joules are commonly used in Scientific research, Physics education, Electronics ratings, and Kinetic energy calculations, Work done.
The energy of a heartbeat is roughly 1 Joule.
About calories
The calorie (lowercase c) was originally defined as the heat required to raise 1 gram of water by 1°C. It is a tiny unit, often called the 'gram calorie'. It is mostly used in chemistry and physics today, not for food. calories are commonly used in Chemistry experiments, Thermodynamics, Specific heat capacity, and Physics problems.
Heating 1 gram of water by 1°C takes 1 calorie.
When Would You Convert joules to calories?
Converting between joules and calories is one of the most common energy conversions. You might need this conversion when working with international specifications, following instructions written for a different measurement system, or comparing values across different standards. Having the conversion factor (1 J = 0.239006 cal) memorized or bookmarked can save time in professional and everyday contexts alike.