This calculator allows you to convert pressure values from pounds per square inch (psi) to inches of water (inH2O).
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.
Definition: Inch of Water (inH2O)
An inch of water (symbol: inH2O) is a unit of pressure that represents the pressure exerted by a column of water one inch high at 39.2°F under standard gravity. It is commonly used in HVAC and other industrial applications to measure differential pressure.
Formula for Psi to Inch of Water (inH2O) Conversion:
Pressure in inH2O = Pressure in psi × 27.6799
How to Convert Psi to Inch of Water: Example Calculation
Suppose you have a pressure of 5 psi.
To convert it to inH2O: 5 × 27.6799 = 138.3995 inH2O
So, 5 psi is equal to 138.3995 inH2O.
Quick Reference Conversion Table for Psi to Inch of Water
| Psi (pound-force per square inch) | Inch of Water (inH2O) |
| 1 psi | 27.6799 inH2O |
| 2 psi | 55.3598 inH2O |
| 5 psi | 138.3995 inH2O |
| 10 psi | 276.799 inH2O |
| 20 psi | 553.598 inH2O |
| 50 psi | 1383.995 inH2O |
| 100 psi | 2767.99 inH2O |
Use of Psi to Inch of Water Conversion Calculator:
- HVAC Systems: Convert pressures in psi to inH2O for accurate measurement in ductwork and other HVAC systems.
- Instrumentation: Ideal for converting gauge readings from imperial units to metric units in water-based systems.
- Industrial Applications: Essential for various industries requiring pressure conversions between these units.
This calculator is a practical tool for engineers, technicians, and professionals working in fields that demand precise pressure conversions.
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