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How many gigajoule in 1 calories? 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 calories The SI derived unit for energy is the joule. 1 joule is equal to 1.0E-9 gigajoule, or 0.23890295761862 calories. 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 calories = 238902957.61862 calories
2 gigajoule to calories = 477805915.23723 calories
3 gigajoule to calories = 716708872.85585 calories
4 gigajoule to calories = 955611830.47446 calories
5 gigajoule to calories = 1194514788.0931 calories
6 gigajoule to calories = 1433417745.7117 calories
7 gigajoule to calories = 1672320703.3303 calories
8 gigajoule to calories = 1911223660.9489 calories
9 gigajoule to calories = 2150126618.5675 calories
10 gigajoule to calories = 2389029576.1862 calories
You can do the reverse unit conversion from calories 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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