## ››Convert attojoule to gram calorie

 attojoule gram calorie

## ››More information from the unit converter

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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You can do the reverse unit conversion from gram calorie to attojoule, or enter any two units below:

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## ››Definition: Attojoule

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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ConvertUnits.com provides an online conversion calculator for all types of measurement units. You can find metric conversion tables for SI units, as well as English units, currency, and other data. Type in unit symbols, abbreviations, or full names for units of length, area, mass, pressure, and other types. Examples include mm, inch, 100 kg, US fluid ounce, 6'3", 10 stone 4, cubic cm, metres squared, grams, moles, feet per second, and many more!