This calculator allows you to convert pressure values from inches of water (inH2O) to pounds per square inch (psi).
Definition: Inch of Water (inH2O)
An inch of water (symbol: inH2O) is a unit of pressure. It represents the pressure exerted by a column of water one inch high at 39.2°F under standard gravity. This unit is commonly used in various industries, including HVAC, to measure differential pressure.
Definition: Pound-force per Square Inch (psi)
A pound-force per square inch (symbol: psi) is a unit of pressure used in the imperial and US customary systems. It represents the pressure resulting from a force of one pound-force applied over an area of one square inch.
Formula for Inch of Water (inH2O) to Psi Conversion:
Pressure in psi = Pressure in inH2O × 0.0361273
How to Convert Inch of Water to Psi: Example Calculation
Suppose you have a pressure of 10 inH2O.
To convert it to psi: 10 × 0.0361273 = 0.361273 psi
So, 10 inH2O is equal to 0.361273 psi.
Quick Reference Conversion Table for Inch of Water to Psi
| Inch of Water (inH2O) | Psi (pound-force per square inch) |
| 1 inH2O | 0.0361273 psi |
| 5 inH2O | 0.1806365 psi |
| 10 inH2O | 0.361273 psi |
| 20 inH2O | 0.722546 psi |
| 50 inH2O | 1.806365 psi |
| 100 inH2O | 3.61273 psi |
| 200 inH2O | 7.22546 psi |
| 500 inH2O | 18.06365 psi |
| 1000 inH2O | 36.1273 psi |
Use of Inch of Water to Psi Conversion Calculator:
- HVAC Systems: Convert pressures in ductwork and other HVAC systems from inH2O to psi.
- Instrumentation: Useful for converting gauge readings in water-based systems to psi.
- Industrial Applications: Applicable in various industries where pressure measurements in different units are required.
This calculator is a valuable tool for engineers, technicians, and professionals working in fields that require accurate pressure conversions between these units.
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