How many inch water in 1 PSIA? The answer is 27.679904842545. We assume you are converting between inch water [4 °C] and pound/square inch [absolute]. You can view more details on each measurement unit: inch water or PSIA The SI derived unit for pressure is the pascal. 1 pascal is equal to 0.0040146307866177 inch water, or 0.00014503773800722 PSIA. Note that rounding errors may occur, so always check the results. Use this page to learn how to convert between inches water and pounds/square inch. Type in your own numbers in the form to convert the units!
1 inch water to PSIA = 0.03613 PSIA
10 inch water to PSIA = 0.36127 PSIA
20 inch water to PSIA = 0.72255 PSIA
30 inch water to PSIA = 1.08382 PSIA
40 inch water to PSIA = 1.44509 PSIA
50 inch water to PSIA = 1.80636 PSIA
100 inch water to PSIA = 3.61273 PSIA
200 inch water to PSIA = 7.22546 PSIA
You can do the reverse unit conversion from PSIA to inch water, or enter any two units below:
Pounds per square inch absolute (psia) is used to make it clear that the pressure is relative to a vacuum rather than the ambient atmospheric pressure. Since atmospheric pressure at sea level is around 14.7 psi, this will be added to any pressure reading made in air at sea level.
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