Convert calorie (nutritional) to gigajoule
Please provide values below to convert calorie (nutritional) [Cal] to gigajoule [GJ], or Convert gigajoule to calorie (nutritional).
How to Convert Calorie (Nutritional) to Gigajoule
1 Cal = 4.1868e-06 GJ
Example: convert 15 Cal to GJ:
15 Cal = 15 × 4.1868e-06 GJ = 6.2802e-05 GJ
Calorie (Nutritional) to Gigajoule Conversion Table
| calorie (nutritional) | gigajoule |
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Calorie (Nutritional)
A calorie (Cal) is a unit of energy used to measure the amount of energy provided by food and beverages, specifically representing the amount of energy needed to raise the temperature of one kilogram of water by one degree Celsius.
History/Origin
The calorie was first introduced in the 19th century as a unit to quantify energy in nutrition. It has since become a standard measure in dietary and nutritional contexts, although the scientific community often prefers the joule as the SI unit of energy.
Current Use
Calories are widely used in nutrition to quantify the energy content of food and beverages, helping consumers manage dietary intake and energy balance. The term 'Calorie' with a capital 'C' typically refers to kilocalories (kcal), which are equivalent to 1,000 small calories.
Gigajoule
A gigajoule (GJ) is a unit of energy equal to one billion joules, used to measure large amounts of energy such as in power generation and fuel consumption.
History/Origin
The gigajoule was introduced as part of the International System of Units (SI) to provide a standard measure for large-scale energy quantities, especially in scientific and industrial contexts, gaining prominence in the 20th century.
Current Use
Gigajoules are commonly used today to quantify energy in fields like energy production, consumption, and engineering, particularly for large-scale systems such as power plants, fuel storage, and energy audits.