How many kWh in 1 zettawatthour?
The answer is 1.0E+18.
We assume you are converting between kilowatt hour and zettawatthour.
You can view more details on each measurement unit:
kWh or zettawatthour
The SI derived unit for energy is the joule.
1 joule is equal to 2.7777777777778E-7 kWh, 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 kilowatt hours and zettawatthour.
Type in your own numbers in the form to convert the units!
You can do the reverse unit conversion from zettawatthour to kWh, or enter any two units below:
The SI prefix "zetta" represents a factor of 1021, or in exponential notation, 1E21.
So 1 zettawatthour = 1021 .
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!