Unit Converter
Bar to PSI Converter
Convert bar to psi instantly. 1 bar equals 14.5038 psi. Free online pressure converter with live results and conversion table.
PSI
14.5038 psi
1 bar = 14.5038 psi
Bar to PSI formula
psi = bar × 14.5038Bar and psi both measure pressure, the force exerted per unit area. The bar is based on SI units (10⁵ pascals), while psi is imperial (pounds per square inch). One bar equals 14.5038 psi, a factor derived from converting metric pascals to imperial pound-force units.
Bar to PSI conversion table
| Bar (bar) | PSI (psi) |
|---|---|
| 1 bar | 14.5038 psi |
| 2 bar | 29.0075 psi |
| 5 bar | 72.5189 psi |
| 10 bar | 145.04 psi |
| 20 bar | 290.08 psi |
| 30 bar | 435.11 psi |
| 50 bar | 725.19 psi |
| 100 bar | 1450.38 psi |
| 200 bar | 2900.75 psi |
When you need to convert bar to psi
- Tire pressure specifications: converting European car tire ratings to US standards
- Industrial equipment: adjusting pneumatic or hydraulic system pressures between metric and imperial specifications
- Diving and water sports: translating tank pressure gauges in bar to psi for air consumption planning
- HVAC systems: reading pressure gauges across metric and imperial climate control equipment
- Medical devices: converting oxygen tank or medical gas pressures between measurement standards
Frequently asked questions
Why do bar and psi both exist?
Bar is used widely in Europe and metric regions as part of the SI system. PSI is the standard in the US and imperial-based countries. Industries operating globally need both conversions for equipment compatibility and safety compliance.
Is 1 bar exactly 14.5038 psi?
Yes. One bar is defined as 100,000 pascals, which equals exactly 14.5038 psi when converted. This fixed ratio applies universally to all pressure values.
What's a practical difference between bar and psi?
Bar values are typically rounder in metric contexts. A car tire at 2 bar (common European spec) equals about 29 psi. Diving tanks use bar; US pressure gauges show psi. Choose based on your equipment's labeling.