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PSI to Feet of Head Calculator

Convert water pressure in PSI to feet of head, useful for well pump and elevation calculations.

Computed in your browser — nothing you enter is uploaded. Figures are presented for United States against IRC 2024, and every formula is cited under regulatory standards below.

Last verified 2026-08-27 · v1.1.0

Market
Imperial · sales tax

Equivalent feet of head

115.33 ft of head

High confidence

For the dimensions entered, expect a equivalent feet of head of 115 ft of head. Set for United States against IRC 2024. The market selector changes both the units and the code cited.

Estimated cost — your price

This site holds no price list for this material — local prices vary too much to publish honestly. Enter your supplier's price and the result is costed with it.

Preliminary estimate, not certified engineering. This tool produces an indicative quantity calculation for planning purposes only — it is not a certified structural analysis, a guaranteed material takeoff, or a substitute for building department approval. Always verify measurements on-site and have a licensed contractor or structural engineer review any load-bearing, code-sensitive, or safety-critical work before purchasing materials or starting construction. Spotted an arithmetic or standards error? Report it to contact@craftquantities.com with your inputs — confirmed fixes become pinned regression tests.

[Schema Verified] Computed in alignment with American Concrete Institute (ACI 318-19) formulas and International Residential Code (IRC 2024) spatial boundaries.

Regulatory standards & verification citations

  • Water at 4 °C weighs 62.428 lb/ft³, so 1 psi supports 144 ÷ 62.428 = 2.3067 ft of column — the jobsite “2.31” is this figure rounded

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Frequently asked questions

Why does this matter for well pumps?
Pump performance curves and lift capacity are often rated in feet of head, while your pressure tank and gauges read in PSI — converting between the two lets you check whether a pump can deliver your target pressure at your well's depth.
Does pipe friction affect this conversion?
No — this is a pure elevation/pressure conversion. Friction loss along the pipe run is a separate factor (dependent on flow rate, pipe diameter, and length) that adds to the total head a pump must overcome.
Does the 2.31 factor change for other liquids?
Yes — this factor is specific to water's density. Denser or lighter liquids would need a different conversion factor based on their specific gravity.