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How many gigajoule in 1 calorie? The answer is 4.1858E-9. We assume you are converting between gigajoule and calorie [15 °C]. You can view more details on each measurement unit: gigajoule or calorie The SI derived unit for energy is the joule. 1 joule is equal to 1.0E-9 gigajoule, or 0.23890295761862 calorie. Note that rounding errors may occur, so always check the results. Use this page to learn how to convert between gigajoules and calories. Type in your own numbers in the form to convert the units!
1 gigajoule to calorie = 238902957.61862 calorie
2 gigajoule to calorie = 477805915.23723 calorie
3 gigajoule to calorie = 716708872.85585 calorie
4 gigajoule to calorie = 955611830.47446 calorie
5 gigajoule to calorie = 1194514788.0931 calorie
6 gigajoule to calorie = 1433417745.7117 calorie
7 gigajoule to calorie = 1672320703.3303 calorie
8 gigajoule to calorie = 1911223660.9489 calorie
9 gigajoule to calorie = 2150126618.5675 calorie
10 gigajoule to calorie = 2389029576.1862 calorie
You can do the reverse unit conversion from calorie to gigajoule, or enter any two units below:
The SI prefix "giga" represents a factor of 109, or in exponential notation, 1E9.
So 1 gigajoule = 109 joules.
The definition of a joule is as follows:
The joule (symbol J, also called newton meter, watt second, or coulomb volt) is the SI unit of energy and work. The unit is pronounced to rhyme with "tool", and is named in honor of the physicist James Prescott Joule (1818-1889).
15 °C calorie: the amount of energy required to warm 1 g of air-free water from 14.5 °C to 15.5 °C at a constant pressure of 101.325 kPa (1 atm). Experimental values of this calorie ranged from 4.1852 J to 4.1858 J. The CIPM in 1950 published a mean experimental value of 4.1855 J, noting an uncertainty of 0.0005 J.
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