How many psig in 1 inch of water column?
The answer is 0.0361272918274.

We assume you are converting between **pound/square inch [gauge]** and **inch of water column**.

You can view more details on each measurement unit:

psig or
inch of water column

The SI derived unit for **pressure** is the pascal.

1 pascal is equal to 0.000145037738007 psig, or 0.00401463078662 inch of water column.

Note that rounding errors may occur, so always check the results.

Use this page to learn how to convert between pounds/square inch and inches water column.

Type in your own numbers in the form to convert the units!

Psig (pound-force per square inch gauge) is a unit of pressure relative to the surrounding atmosphere. By contrast, psia measures pressure relative to a vacuum (such as that in space). At sea level, Earth's atmosphere actually exerts a pressure of 14.7 psi. Humans do not feel this pressure because internal pressure of liquid in their bodies matches the external pressure. If a pressure gauge is calibrated to read zero in space, then at sea level on Earth it would read 14.7 psi. Thus a reading of 30 psig on a tire gauge represents an absolute pressure of 44.7 psi.

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