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psi to bar converter

Convert pressure from psi to bar, kPa, and MPa with a dedicated engineering-style page.

PSI to Bar Converter

This engineering calculator allows you to quickly convert pressure from psi to bar, kPa, and MPa. It is useful for piping work, pump systems, compressor calculations, instrumentation checks, and general pressure unit conversion in mechanical engineering.

Quick conversion formula

1 psi = 0.06895 bar

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Online calculator

bar
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kPa
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MPa
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Formula

bar = psi ÷ 14.5037738, kPa = bar × 100, MPa = bar × 0.1

Example

If pressure = 150 psi, then bar ≈ 10.342 bar, kPa ≈ 1034.2 kPa, and MPa ≈ 1.034 MPa.