How do you convert psi to bar?

To convert psi to bar, multiply the pressure in pounds per square inch by 0.0689476. One psi is approximately 0.0689476 bar.

What is 30 psi in bar?

30 psi × 0.0689476 ≈ 2.07 bar, a typical car tyre pressure.

Where is psi used instead of bar?

Psi is common in the United States and in some technical manuals worldwide, especially for tyres, hydraulics and compressors. Bar is more common in metric-based regions.

psi to bar – convert pounds per square inch to bar

Convert psi to bar (pounds per square inch to bar) for tyre pressures, hydraulics, compressors and industrial equipment. This page links to the main pressure converter with psi → bar pre-selected.

Open the interactive psi → bar converter:

Use main converter (psi → bar) or switch to bar → psi

The homepage also supports kPa, Pa, atm, mbar and more pressure units using the same engine.

Quick reference: psi to bar

1 psi ≈ 0.0689476 bar. Typical pressures:

Pressure (psi)	Pressure (bar, approx.)
20 psi	1.38 bar
30 psi	2.07 bar
32 psi	2.21 bar
35 psi	2.41 bar
40 psi	2.76 bar
50 psi	3.45 bar

Why convert psi to bar?

Common reasons include:

Reading car or bike tyre charts in psi and comparing with bar-based pumps.
Working with compressor datasheets that mix psi and bar ratings.
Translating US documentation for use in metric-based workshops.
Logging pressures consistently in bar for analysis or reporting.

Other pressure converters on this site

psi to bar FAQ

What is the formula for psi to bar?

Multiply psi by 0.0689476. Example: 36 psi × 0.0689476 ≈ 2.48 bar.

Is 1 bar roughly 15 psi?

Yes. 1 bar ≈ 14.5038 psi, so 15 psi is a handy mental shortcut.

Which unit is more “metric” – psi or bar?

Bar is closer to the metric system and is widely used in Europe. Psi belongs to the imperial/US system.

Page last updated: 2 December 2025.