How many gram calorie in 1 zettawatthour?
The answer is 8.6005064742701E+23.
We assume you are converting between gram calorie and zettawatthour.
You can view more details on each measurement unit: gram calorie or
zettawatthour
The SI derived unit for energy is the joule.
1 joule is equal to 0.23890295761862 gram calorie, or 2.7777777777778E-25 zettawatthour.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between gram calories and zettawatthour.
Type in your own numbers in the form to convert the units!

The SI prefix "zetta" represents a factor of
10^{21}, or in exponential notation, 1E21.

So 1 zettawatthour = 10^{21} .

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