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Feet of Head to PSI

Convert feet of water head to PSI instantly.

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Formula

1 ft head = 0.433527 PSI

Unit Relationship

1 ft head = 0.433527 PSI.

Worked Example

For example, 1 feet of water head converts to approximately 0.4335 pounds per square inch (PSI).

Unit Definitions

ft head: Feet of water head expresses pressure as the height of a water column.

PSI: Pounds per square inch (PSI) measures pound-force applied over one square inch.

Practical Uses

pump and hydraulic system calculations
water-pressure and pressure-head comparisons
pipe and fluid-system design checks
civil and mechanical engineering calculations

Precision and Rounding

Displayed results may be rounded for readability. Keep additional digits during intermediate engineering calculations when greater precision is required.

Important Notes

Pressure-head relationships depend on fluid density. Use the established conversion factor in this converter for the stated units and application.

Quick Reference

ft head	PSI
1	0.4335
10	4.3353
50	21.6764
100	43.3528

Frequently Asked Questions

How do I convert feet of water head to pounds per square inch (PSI)?

Enter the value in feet of water head above. The converter applies the established conversion factor and returns the equivalent value in pounds per square inch (PSI).

Why can pressure-head conversions vary with the fluid?

Pressure head depends on fluid density. Water-head conversions assume the established relationship represented by this converter.