PSI to Bar Converter
1 pound per square inch (psi) equals 0.0689476 bar. Bar is the metric unit commonly used in Europe and for pneumatic, hydraulic, and process industry pressure ratings. This...
Formula
Source: Engineering Toolbox | Last reviewed: June 7, 2026
Examples
1 psi
= 0.06895 bar
14.5038 psi
= 1 bar
1 bar = 14.5038 psi
100 psi
= 6.895 bar
1000 psi
= 68.95 bar
Quick Reference Table
| psi | bar |
|---|---|
| 0 | 0 |
| 10 | 0.689 |
| 20 | 1.379 |
| 30 | 2.069 |
| 50 | 3.447 |
| 100 | 6.895 |
Where is this used?
When reading US equipment in Europe or vice versa, this is the most common conversion you'll need.
Frequently Asked Questions
Is bar the same as atm?
No. 1 bar = 0.98692 atm, so they're nearly identical but not exact. 1 bar = 100,000 Pa exactly; 1 atm = 101,325 Pa.
Why is bar used instead of Pa?
Bar is convenient for industrial pressures (typical range 1–1000 bar). 1 Pa is too small; 1 MPa = 10 bar, used for very high pressures.
What about millibar (mbar)?
1 bar = 1000 mbar. Millibar is common in meteorology and vacuum work. 1 mbar = 100 Pa = 0.0145 psi.
Reviewed for accuracy
· Last reviewed: June 7, 2026
All calculations are for reference only. Always verify with manufacturer data and a qualified engineer for critical applications. Learn about our editorial process.