1. What is a Ft of Water to PSI Calculator?

Definition: This calculator converts feet of water head to pounds per square inch (psi) pressure.

Purpose: It helps engineers, plumbers, and technicians convert between these common pressure measurement units.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( P \) — Pressure (psi)
• \( H \) — Water head (feet)

Explanation: The conversion factor 2.31 comes from the relationship that 1 psi ≈ 2.31 feet of water column at standard conditions.

3. Importance of Pressure Conversion

Details: Accurate conversion between these units is essential for designing water systems, calculating pump requirements, and interpreting pressure measurements.

4. Using the Calculator

Tips: Simply enter the water head in feet. The value must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: Why is the conversion factor 2.31?
A: This comes from the specific weight of water (0.433 psi/ft) - the reciprocal is 1/0.433 ≈ 2.31 ft/psi.

Q2: Does this work for any liquid?
A: No, this is specific to water. Other liquids would require different conversion factors based on their density.

Q3: How accurate is this conversion?
A: Very accurate for water at standard temperature (60°F/15.6°C). For other temperatures, minor adjustments may be needed.

Q4: Can I convert psi back to feet of water?
A: Yes, simply multiply psi by 2.31 to get feet of water head.

Q5: Where is this conversion commonly used?
A: In plumbing systems, water towers, hydrostatic testing, and any application where water pressure is measured in feet of head.