ft of water to psi Calculator

Pressure Conversion Formula:

\[ P_{psi} = h_{ft} \times 0.433 \]

Pressure (psi):

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1. What is a ft 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 water column measurements to pressure units.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ P_{psi} = h_{ft} \times 0.433 \]

Where:

\( P_{psi} \) — Pressure in pounds per square inch (psi)
\( h_{ft} \) — Height of water column in feet
0.433 — Conversion factor (psi per foot of water)

Explanation: The height of the water column is multiplied by the standard conversion factor of 0.433 psi per foot of water.

3. Importance of Water Pressure Calculation

Details: Accurate pressure calculations are essential for designing plumbing systems, hydraulic systems, and understanding fluid behavior in various applications.

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 0.433?
A: This comes from the specific weight of water (62.4 lb/ft³) divided by 144 (in²/ft²), which equals approximately 0.433 psi per foot.

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

Q3: How accurate is this conversion?
A: It's accurate for pure water at standard conditions (4°C, 1 atm). Temperature and salinity can affect the result slightly.

Q4: What's the reverse calculation (psi to ft)?
A: Divide psi by 0.433 to get feet of water (h_ft = P_psi / 0.433).

Q5: Is this the same as head pressure?
A: Yes, this calculates the static pressure (head pressure) created by a column of water of a given height.