How many attobar in 1 water column [inch]?
The answer is 2.4908890833333E+15.
We assume you are converting between attobar and water column [inch].
You can view more details on each measurement unit: attobar or
water column [inch]
The SI derived unit for pressure is the pascal.
1 pascal is equal to 10000000000000 attobar, or 0.0040146307866177 water column [inch].
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between attobars and water column.
Type in your own numbers in the form to convert the units!

The SI prefix "atto" represents a factor of
10^{-18}, or in exponential notation, 1E-18.

So 1 attobar = 10^{-18} 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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