Calchy.
81 answers

Conversion - PSI to bar

Direct answers to every common question in this cluster. Each page has the computed value, the formula, and a live converter.

Quick reference

PSI (pounds per square inch) and bar are the two pressure units automotive and engineering applications use most. PSI dominates in the US; bar dominates in Europe. The exact relationship is 1 bar = 14.5038 PSI, derived from the SI definition of the bar (10⁵ Pa).

Formula
bar = PSI ÷ 14.5037738 (or PSI × 0.0689476)
Common values
30 PSI
2.07 bar
32 PSI
2.21 bar
35 PSI
2.41 bar
40 PSI
2.76 bar
45 PSI
3.10 bar
60 PSI
4.14 bar

Every answer in this topic