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Bar to PSI Calculator

Convert a bar pressure rating into PSI for US gauges, fittings and equipment.

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 2026-08-26 · v1.0.0

Market
Imperial · sales tax

Pressure

58.02 psi

High confidence

1 bar = 14.5038 psi, from 1 bar = 100,000 Pa exactly. One bar lifts water roughly 10.2 m — useful when comparing a pressure rating against a static head.

Conversion factor applied
14.5 psi per bar

Equipment rated in bar meeting gauges and fittings marked in psi is routine wherever European plant lands on an American site, or vice versa. Multiply by 14.5 and the job is done, though the shortcut of multiplying by fifteen overstates by three percent and should stay out of anything involving a safety margin. Two useful anchors go with this conversion. A compressor's tank pressure and its regulated output are different figures, and tools are specified against the latter. And one bar corresponds to about 10.2 metres of water head, which is the relationship that lets a pump duty, a static lift and a component's pressure rating all be compared on the same terms.

Add the equipment this sizes

This result is a specification — 58.015 psi — not a quantity. Put the thing it sizes into your project: how many, what you call it, and your supplier’s price.

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

  • 1 bar = 100,000 Pa = 14.503773773 psi

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Frequently asked questions

Roughly how many psi is a bar?
About 14.5, so a quick mental conversion is to multiply by fifteen and accept a 3% overestimate. For pressure ratings and safety margins, use the exact figure rather than the shortcut.
My compressor is rated in bar but my tools in psi. Does it matter?
Only that you compare like with like. Convert one to the other and check the tool's requirement against the compressor's regulated output, not its maximum tank pressure — those are different numbers and the tank figure is always higher.
How does this relate to head of water?
One bar lifts water about 10.2 metres, or roughly 33.5 feet. That relationship is how pump duties and static heads get compared against pressure ratings, and it is worth knowing when sizing a system in a tall building.