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Pressure

psitobar

Convert pounds-force per square inch (psi) to bar (bar).

Factor1 psi = 0.06894757 bar

Converter

psi

Accepts numbers or expressions, e.g. 150 + 14.7

Result
10.3421bar

Rendered to 6 significant figures.

Formula

Formula
bar = psi × 0.06894757

Multiply any value in pounds-force per square inch by 0.06894757 to obtain the value in bar.

Worked example

Convert 150 psi to bar.

  1. 01Start with 150 psi.
  2. 02Multiply by the conversion factor: 150 × 0.06894757 = 10.3421 bar.
Result150 psi = 10.3421 bar

Conversion table

psibar
10.068948
20.1379
50.34474
100.68948
201.379
503.4474
1006.8948
20013.79
50034.474
100068.948

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from psi to bar?
1 psi equals 0.06894757 bar. To convert, multiply the value in pounds-force per square inch by 0.06894757.
How do I convert 1 psi to bar?
1 psi = 0.0689476 bar. For any value, multiply by 0.06894757.
How do I convert bar back to psi?
Divide by the same factor — or equivalently, multiply by 14.50377. So 1 bar = 14.5038 psi.
When would I need to convert pound-force per square inch to bar?
Pressure conversions between psi and bar are common when working with mixed-vendor instrumentation, when piping codes use different units to process datasheets, or when converting field readings into SI for hydraulic calculations.
Is the conversion exact?
The factor shown is precise to at least 7 significant figures. For most process-engineering work this is far better than instrument accuracy. For metrology or trade applications, refer to the relevant national standard (NIST, BIPM, ISO 80000).

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