Home
Back
PSI Formula:
| From: | To: |
The feet of head to PSI conversion is a fundamental calculation in fluid mechanics that converts the height of a water column (in feet) to pressure in pounds per square inch (PSI). This conversion is essential for various engineering and plumbing applications.
The calculator uses the standard conversion formula:
Where:
Explanation: The factor 2.31 comes from the relationship where 1 foot of water head equals approximately 0.433 PSI, and its reciprocal is 2.31.
Details: This conversion is crucial for designing water systems, calculating pump requirements, determining pipe pressure ratings, and ensuring proper system operation in various engineering applications.
Tips: Enter the head measurement in feet. The value must be positive and greater than zero. The calculator will automatically compute the corresponding PSI value.
Q1: Why is the conversion factor 2.31?
A: The factor 2.31 is derived from the density of water and gravitational acceleration. Specifically, 1 foot of water head equals 0.433 PSI, and 1/0.433 ≈ 2.31.
Q2: Is this conversion specific to water?
A: Yes, this conversion factor is specific to water at standard conditions (approximately 4°C). Other fluids would require different conversion factors based on their density.
Q3: What are typical head values in residential plumbing?
A: Typical residential water systems operate with heads between 20-80 feet, corresponding to approximately 8.7-34.6 PSI.
Q4: How accurate is this conversion?
A: The conversion is highly accurate for water at standard conditions. Minor variations may occur due to temperature and water density changes.
Q5: Can this be used for other pressure units?
A: This calculator specifically converts feet of head to PSI. For other units like kPa or bar, additional conversion factors would be needed.