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

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

You can view more details on each measurement unit:

PSI or
inch of water column

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

1 pascal is equal to 0.000145037738007 PSI, 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!

You can do the reverse unit conversion from inch of water column to PSI, or enter any two units below:

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The pound per square inch or, more accurately, pound-force per square inch (symbol: psi or lbf/inē or lbf/inē) is a unit of pressure or of stress based on avoirdupois units. It is the pressure resulting from a force of one pound-force applied to an area of one square inch.

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