How many cmH2O in 1 psi?
The answer is 70.3069578296.

We assume you are converting between **centimeter of water [4 °C]** and **pound/square inch**.

You can view more details on each measurement unit:

cmH2O or
psi

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

1 pascal is equal to 0.0101971621298 cmH2O, or 0.000145037738007 psi.

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

Use this page to learn how to convert between centimeters of water and pounds/square inch.

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

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.

**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!

This page was loaded in 0.0026 seconds.