How many kilocalorie [I.T.] in 1 zettawatthour?
The answer is 8.5984522785899E+20.
We assume you are converting between kilocalorie [I.T.] and zettawatthour.
You can view more details on each measurement unit: kilocalorie [I.T.] or
zettawatthour
The SI derived unit for energy is the joule.
1 joule is equal to 0.0002388458966275 kilocalorie [I.T.], 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 kilocalories 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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