Psi to Bar Converter
How to convert psi to bar
bar = psi ÷ 14.5037738
To convert psi to bar, divide the number of psi by 14.5037738.
1 psi = 0.0689475729 bar
Examples
- A typical car tire pressure: 32 psi ÷ 14.5037738 = 2.20632233 bar
- 100 psi ÷ 14.5037738 = 6.89475729 bar
Good to know
One bar is about 14.5 psi, so 2.2 bar is roughly 32 psi. Tire pressures are given in bar in most of Europe and in psi in the United States and United Kingdom.
Psi means pounds-force per square inch (lbf/in²). Gauge readings (psig) are measured relative to atmospheric pressure, absolute readings (psia) relative to a vacuum; the conversion factor is the same for both.
Psi to bar conversion table
| Psi | Bar |
|---|---|
| 1 psi | 0.0689475729 bar |
| 5 psi | 0.344737865 bar |
| 10 psi | 0.689475729 bar |
| 14.7 psi | 1.01352932 bar |
| 15 psi | 1.03421359 bar |
| 20 psi | 1.37895146 bar |
| 25 psi | 1.72368932 bar |
| 30 psi | 2.06842719 bar |
| 32 psi | 2.20632233 bar |
| 35 psi | 2.41316505 bar |
| 40 psi | 2.75790292 bar |
| 45 psi | 3.10264078 bar |
| 50 psi | 3.44737865 bar |
| 60 psi | 4.13685438 bar |
| 80 psi | 5.51580583 bar |
| 100 psi | 6.89475729 bar |
Unit definitions
- Psi
- Psi is one pound-force per square inch, about 6894.757 pascals. It is the everyday pressure unit in the United States, used for tires, compressors and plumbing.
- Bar
- A bar is exactly 100,000 pascals, slightly less than average atmospheric pressure at sea level. It is widely used in Europe for tire pressures, weather and industrial equipment.