Kilojoule to Calorie (nutritional) Conversion
Convert between Kilojoule and Calorie (nutritional) quickly and accurately.
How to Convert Kilojoule to Calorie (nutritional)
Conversion Formula
Example
Convert 15 kJ to cal:
Unit Information
Learn about the energy units you're converting between
Kilojoule
kJ
Definition
A kilojoule (symbol: kJ) is a unit of energy equal to 1,000 joules. It is commonly used for measuring larger amounts of energy in food, exercise, and industrial applications. One kilojoule equals approximately 0.239 kilocalories.
History/Origin
The kilojoule was introduced as a practical unit for measuring larger energy quantities in the metric system. It became widely used in the late 20th century for food labeling and energy consumption measurements.
Current Use
Kilojoules are extensively used in nutrition labeling worldwide, exercise physiology for measuring energy expenditure, industrial energy consumption monitoring, and scientific research for measuring moderate energy quantities.
Multiplier
1000
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
Kilojoule to Calorie (nutritional) Conversion Table
| Kilojoule [kJ] | Calorie (nutritional) [cal] |
|---|---|
| 1 kJ | 0.238846 cal |
| 10 kJ | 2.388459 cal |
| 25 kJ | 5.971147 cal |
| 50 kJ | 11.942295 cal |
| 100 kJ | 23.88459 cal |
| 0 kJ | 0E+0 cal |
| -10 kJ | -2.388459 cal |
| -40 kJ | -9.553836 cal |
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