How many attojoule in 1 gram calorie?
The answer is 4.1858E+18.
We assume you are converting between attojoule and gram calorie.
You can view more details on each measurement unit: attojoule or
gram calorie
The SI derived unit for energy is the joule.
1 joule is equal to 1.0E+18 attojoule, or 0.23890295761862 gram calorie.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between attojoules and gram calories.
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gram calorie to attojoule, or enter any two units below:

The SI prefix "atto" represents a factor of
10^{-18}, or in exponential notation, 1E-18.

So 1 attojoule = 10^{-18} 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).

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