Did you mean to convert |
inches of water | to |
atmosphere [standard] atmosphere [technical] |

How many inches of water in 1 atm?
The answer is 406.7825046.

We assume you are converting between **inch of water [4 °C]** and **atmosphere [standard]**.

You can view more details on each measurement unit:

inches of water or
atm

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

1 pascal is equal to 0.00401463078662 inches of water, or 9.86923169314E-6 atm.

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

Use this page to learn how to convert between inches of water and atmospheres.

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

**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 0.0034 seconds.