Convert Joules (J) to Calories (cal)
Enter a value below to convert Joules (J) to Calories (cal).
Conversion:
1 Joules (J) = 0.23900573614 Calories (cal)
How to Convert Joules (J) to Calories (cal)
1 j = 0.23900573614 cal
1 cal = 4.184 j
Example: convert 15 Joules (J) to Calories (cal):
25 j = 5.9751434034 cal
Joules (J) to Calories (cal) Conversion Table
| Joules (J) | Calories (cal) |
|---|---|
| 0.01 j | 0.0023900573614 cal |
| 0.1 j | 0.023900573614 cal |
| 1 j | 0.23900573614 cal |
| 2 j | 0.47801147228 cal |
| 3 j | 0.71701720841 cal |
| 5 j | 1.1950286807 cal |
| 10 j | 2.3900573614 cal |
| 20 j | 4.7801147228 cal |
| 50 j | 11.950286807 cal |
| 100 j | 23.900573614 cal |
| 1000 j | 239.00573614 cal |
Joules (J)
Definition
A joule (J) is the SI unit of energy, defined as the work done when a force of one newton moves an object one meter in the direction of the force. It equals 1 kg⋅m²/s².
History
The joule is named after English physicist James Prescott Joule, who demonstrated the relationship between mechanical work and heat in the 1840s. It was adopted as the SI unit of energy in 1889 by the International Electrical Congress.
Current use
Joules are used universally in physics, engineering, and chemistry to quantify energy, work, and heat. They are the standard unit on food labels in many countries and in scientific research worldwide.
Calories (cal)
Definition
A calorie (cal), also known as a small calorie or gram calorie, is defined as the amount of heat energy needed to raise the temperature of one gram of water by one degree Celsius. It equals approximately 4.184 joules.
History
The calorie was first defined by French chemist Nicolas Clément in 1824. It was widely used in chemistry and physiology before the joule became the official SI unit of energy.
Current use
Small calories are used in chemistry and physics for heat measurements. In everyday language, 'calorie' often refers to the kilocalorie (kcal) when discussing food energy.