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Pressure Conversion Formula:
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The conversion from inches of water (inH₂O) to pounds per square inch (PSI) is a common pressure unit conversion used in various engineering and scientific applications. Inches of water is often used for low-pressure measurements, while PSI is a more general pressure unit.
The calculator uses the conversion formula:
Where:
Explanation: This conversion factor is derived from the relationship between water column height and pressure, where 1 inch of water column at 4°C equals approximately 0.0361 PSI.
Details: Accurate pressure conversion is essential in HVAC systems, fluid dynamics, industrial processes, and various engineering applications where different pressure units are used across systems and standards.
Tips: Enter the inches of water value in the input field. The value must be positive and valid. The calculator will automatically convert to PSI with precision to four decimal places.
Q1: Why convert inches of water to PSI?
A: Different industries and applications use different pressure units. Conversion ensures compatibility between systems and proper interpretation of pressure measurements.
Q2: What is the accuracy of this conversion?
A: The conversion factor 0.0361 is standard for most practical applications. For high-precision scientific work, temperature and gravity corrections may be needed.
Q3: Where is inches of water commonly used?
A: Commonly used in HVAC systems, natural gas distribution, low-pressure fluid systems, and manometer measurements.
Q4: Can I convert PSI back to inches of water?
A: Yes, use the inverse formula: inH₂O = PSI ÷ 0.0361 or inH₂O = PSI × 27.67.
Q5: Are there other water column pressure units?
A: Yes, including feet of water (1 ftH₂O = 12 inH₂O), millimeters of water, and centimeters of water.