Pressure to Head

Convert pressure in psi to equivalent water head in feet or meters.

Author

Prof. Priya Venkatesh

Plumbing editorial contributor

Indian theoretical physicist from IIT Bombay with postdoctoral work at CERN, researching dark matter candidates

Reviewed by

Prof. Zara Khan

Plumbing content reviewer

Pakistani-British education researcher at Cambridge, evaluating digital literacy programs in South Asian rural schools

Last updatedFebruary 22, 2026

PublishedFebruary 22, 2026

40 psi =

92.4 ft head

Representative value from the Pressure to Head reference table.

Reference Values

Browse 16 reference values with individual detail pages for quick lookup.

Browse all reference values

Pressure and Head Converter

Convert water pressure and equivalent head values in either direction.

Converted Value

Reference Table

Use this complete table for quick lookup and internal linking to specific value pages.

Pressure to Head Reference
PressureEquivalent HeadHead (m)
1 psi2.31 ft head0.704
2 psi4.62 ft head1.408
5 psi11.55 ft head3.52
10 psi23.1 ft head7.041
15 psi34.65 ft head10.561
20 psi46.2 ft head14.082
25 psi57.75 ft head17.602
30 psi69.3 ft head21.123
40 psi92.4 ft head28.164
50 psi115.5 ft head35.204
60 psi138.6 ft head42.245
80 psi184.8 ft head56.327
100 psi231 ft head70.409
120 psi277.2 ft head84.491
150 psi346.5 ft head105.613
200 psi462 ft head140.818

Frequently Asked Questions

Common questions about Pressure to Head, formulas, and typical use cases.

How do you convert psi to feet of head?

For water, feet of head is approximately psi multiplied by 2.31.

Why convert pressure to head?

Head units are often used in pump and piping calculations, making pressure-to-head conversion useful for system checks.

Can this be reversed from head to psi?

Yes. Divide feet of head by 2.31 to estimate psi for water.

Does this apply to all fluids?

This conversion is for water-equivalent head. Other fluids require density correction.

Methodology and Review

This page combines a live calculator, precomputed reference values, and FAQ content from the same conversion definition to reduce mismatch between calculator output and lookup tables.

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For compliance-sensitive work, verify final values against project requirements, governing standards, and manufacturer documentation.