Joule to Calorie (nutritional) Conversion
Convert between Joule and Calorie (nutritional) quickly and accurately.
How to Convert Joule to Calorie (nutritional)
Conversion Formula
Example
Convert 15 J to cal:
Unit Information
Learn about the energy units you're converting between
Joule
J
Definition
The joule (symbol: J) is the SI base unit of energy, work, and heat. It is defined as the work done when a force of one newton moves an object one meter in the direction of the force. One joule equals one newton-meter or one watt-second.
History/Origin
The joule was named after James Prescott Joule (1818-1889), an English physicist who established the mechanical equivalent of heat. It was officially adopted as the SI unit of energy in 1948, replacing the calorie in scientific contexts.
Current Use
Joules are used universally in physics, engineering, and chemistry for measuring energy, work, and heat. Applications include electrical energy calculations, mechanical work, thermal energy, and energy efficiency measurements in all scientific and industrial fields.
Multiplier
1
Offset
0
Calorie (nutritional)
cal
Definition
A nutritional calorie (symbol: cal) is a unit of energy used in nutrition, equal to 4,186.8 joules. It represents the amount of energy needed to raise the temperature of one kilogram of water by one degree Celsius.
History/Origin
The calorie was originally defined in the 19th century for measuring heat energy. The nutritional calorie became standardized for food labeling and remains widely used in the United States for dietary energy measurements.
Current Use
Nutritional calories are used in food labeling in the United States, dietary planning and nutrition counseling, exercise and fitness tracking, weight management programs, and metabolic research in health and medicine.
Multiplier
4186.8
Offset
0
Joule to Calorie (nutritional) Conversion Table
| Joule [J] | Calorie (nutritional) [cal] |
|---|---|
| 1 J | 0.000239 cal |
| 10 J | 0.002388 cal |
| 25 J | 0.005971 cal |
| 50 J | 0.011942 cal |
| 100 J | 0.023885 cal |
| 0 J | 0E+0 cal |
| -10 J | -0.002388 cal |
| -40 J | -0.009554 cal |
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