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

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

Purpose: It helps engineers, plumbers, and technicians working with fluid systems to convert between pressure and water column height.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( h \) — Head of water (feet)
• \( P \) — Pressure (psi)
• 2.31 — Conversion factor (1 psi = 2.31 feet of water)

Explanation: The conversion factor comes from the relationship between pressure and the height of a water column, accounting for water's density and gravity.

3. Importance of Pressure to Head Conversion

Details: This conversion is essential for designing water systems, understanding pump performance, and interpreting pressure measurements in terms of water column height.

4. Using the Calculator

Tips: Simply enter the pressure value in psi. The calculator will automatically compute the equivalent head of water in feet.

5. Frequently Asked Questions (FAQ)

Q1: Why is the conversion factor 2.31?
A: It's derived from the equation P = ρgh, where ρ is water density (62.4 lb/ft³) and g is gravity (32.2 ft/s²). 1 psi equals 144 lb/ft², so h = 144/(62.4) ≈ 2.31 ft.

Q2: Does this work for other liquids?
A: No, this specific conversion is for water. Other liquids would require adjusting for their specific gravity.

Q3: Is temperature a factor in this conversion?
A: The conversion assumes water at standard conditions (60°F). For very precise calculations at different temperatures, slight adjustments may be needed.

Q4: How accurate is this conversion?
A: For most practical purposes, it's accurate enough. The actual value is closer to 2.30666 ft/psi, but 2.31 is the commonly used approximation.

Q5: What's the reverse calculation (feet to psi)?
A: To convert feet of water to psi, divide the head by 2.31 (P = h/2.31).