PSI to Bar Converter

Convert PSI to bar and bar to PSI instantly, with the exact factor, a full equivalents readout and a comparison chart. Ideal for tire pressure, bike pumps, air compressors and hydraulic specs.

Result

2.21 Bar

Equivalent pressure

Your value shown in PSI, bar, kilopascals and atmospheres.

How to convert PSI and bar

PSI (pounds per square inch) is the pressure unit used across the United States for tires, air tools and plumbing, while bar is the metric unit common on European cars, dive gear and pumps. Both scale directly to the SI pascal, so the conversion is a single fixed factor.

bar = PSI ÷ 14.5038 (PSI × 0.0689476)
PSI = bar × 14.5038

Worked example

Your car door sticker calls for 32 PSI. Divide by 14.5038: 32 ÷ 14.5038 = 2.21 bar, so a European gauge reading in bar should show about 2.2.

Quick reference

An easy anchor to remember: 1 bar ≈ 14.5 PSI, and 2 bar ≈ 29 PSI. Most passenger-car tires live between 2.1 and 2.5 bar (30–36 PSI).

PSI to bar reference table

PSI	Bar	Where you see it
15 PSI	1.03 bar	Compact spare tire (low)
30 PSI	2.07 bar	Small car tire
32 PSI	2.21 bar	Typical car tire
35 PSI	2.41 bar	SUV / light truck tire
44 PSI	3.03 bar	Max sidewall pressure
100 PSI	6.89 bar	Air compressor line
120 PSI	8.27 bar	Road bike tire

Frequently asked questions

How many PSI is 1 bar?

About 14.5038 PSI. To convert bar to PSI, multiply by 14.5038.

How do I convert PSI to bar?

Divide the PSI value by 14.5038 (or multiply by 0.0689476). For example, 32 PSI ÷ 14.5038 = 2.21 bar.

What is 32 PSI in bar?

32 PSI, a typical car tire pressure, equals about 2.21 bar.

What is 2.5 bar in PSI?

About 36.3 PSI, from 2.5 × 14.5038.

Is bar bigger than PSI?

Yes. One bar is roughly 14.5 times larger than one PSI, so the same pressure is a smaller number in bar.

Is 1 bar the same as 1 atmosphere?

Almost. 1 bar is 100,000 Pa and 1 atm is 101,325 Pa, so 1 bar equals about 0.987 atm.