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

Definition: This calculator converts the height of a water column in feet to pressure in pounds per square inch (psi).

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

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( P \) — Pressure (psi)
• \( h \) — Height of water column (feet)

Explanation: The conversion factor 2.31 comes from the fact that 1 psi equals 2.31 feet of water head 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 height of the water column 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 relationship between water density and gravity: 1 psi = 27.68 inches of water = 2.31 feet of water.

Q2: Does this work for other liquids?
A: No, this is specific to water at standard conditions (60°F). Other liquids require different conversion factors based on their density.

Q3: How accurate is this conversion?
A: Very accurate for most practical purposes, though extreme temperatures or pressures might require more precise calculations.

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

Q5: Where is this conversion commonly used?
A: In plumbing systems, water towers, hydrostatic testing, and any application where water pressure needs to be measured or calculated.