How many millimeter of water in 1 zettabar?
The answer is 1.0197162129779E+25.
We assume you are converting between millimeter of water [4 °C] and zettabar.
You can view more details on each measurement unit: millimeter of water or
zettabar
The SI derived unit for pressure is the pascal.
1 pascal is equal to 0.10197162129779 millimeter of water, or 1.0E-26 zettabar.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between millimeters of water and zettabars.
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 zettabar = 10^{21} bars.

The definition of a bar is as follows:

The bar is a measurement unit of pressure, equal to 1,000,000 dynes per square centimetre (baryes), or 100,000 newtons per square metre (pascals). The word bar is of Greek origin, báros meaning weight. Its official symbol is "bar"; the earlier "b" is now deprecated, but still often seen especially as "mb" rather than the proper "mbar" for millibars.

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