Water Pressure Head Calculator
Use the Water Pressure Head Calculator for plumbing planning. Enter Water head (ft) to get a clear result, formula explanation, and practical checks.
Water Pressure Head measurements
Enter your values, then calculate.
Result
How to calculate water pressure head
This calculator finds water pressure from a given height (head) of water, using the standard hydrostatic pressure relationship for water.
How the calculation works
Pressure (psi) = Water head (ft) × 0.433, where 0.433 psi per foot is the standard pressure gradient for water.
Example
50 ft of water head: 50×0.433 = 21.65 psi.
Frequently asked questions
How is Result calculated?
Result = [Water head] × 0.433.
Is the Water Pressure Head Calculator free to use?
Yes — every calculator on Simple Calculator Tools is free, runs in your browser, and does not require an account.
Water Pressure Head Calculator
Pressure (psi) = Water head (ft) × 0.433, where 0.433 psi per foot is the standard pressure gradient for water.
Let's understand your water pressure head result.
Calculate a result above and this guide will help you interpret it using this calculator's own formula and explanation.
Pro Tips for Water Pressure Head
- This 0.433 psi-per-foot conversion is a standard, widely-used constant for water specifically — other fluids with different densities would use a different conversion factor.
- This calculates static pressure from elevation alone — actual system pressure also depends on any pump boost and friction losses through piping, which aren't included here.
Common Water Pressure Head Mistakes to Avoid
- Treating this static head pressure as the complete system pressure, without accounting for pump contribution or friction losses that also affect actual delivered pressure.
When to Use This Calculator
This calculator finds water pressure from a given height (head) of water, using the standard hydrostatic pressure relationship for water.