PSI to Bar Converter
Convert psi to bar instantly. Accurate pound-per-square-inch to bar pressure calculator.
Common conversions
Result
— bar
Conversion formula: multiply by 0.0689475729317 (psi → bar)
Related conversions
Need another unit? Open the full Unit Converter for every category.
About Pound per Square Inch to Bar
Quick answer: 30 psi = 2.068427 bar. Conversion formula: multiply by 0.0689475729317 (psi → bar).
Why convert pound per square inch to bar?
European equipment manuals often specify bar. Converting psi readings to bar keeps maintenance and calibration aligned with manufacturer limits.
How to use this converter:
1. Confirm the From unit is Pound per Square Inch (psi) and To is Bar (bar).
2. Enter any number — the result updates instantly.
3. Edit either field for bidirectional conversion, adjust precision, or tap Swap.
4. Copy the result when you need it in a report, label, or spreadsheet.
Common use cases:
- Import equipment commissioning
- SCUBA and industrial gas cylinder checks
- HVAC and boiler pressure monitoring
Example conversions
| Pound per Square Inch | Bar |
|---|---|
| 10 psi | 0.689476 bar |
| 15 psi | 1.034214 bar |
| 20 psi | 1.378951 bar |
| 30 psi | 2.068427 bar |
| 32 psi | 2.206322 bar |
| 35 psi | 2.413165 bar |
| 36 psi | 2.482113 bar |
| 40 psi | 2.757903 bar |
| 50 psi | 3.447379 bar |
| 60 psi | 4.136854 bar |
| 80 psi | 5.515806 bar |
| 100 psi | 6.894757 bar |
| 120 psi | 8.273709 bar |
| 150 psi | 10.342136 bar |
| 200 psi | 13.789515 bar |
| 300 psi | 20.684272 bar |
| 500 psi | 34.473786 bar |
Frequently Asked Questions
How do you convert Pound per Square Inch to Bar?
Multiply the pound per square inch value by the conversion factor. Formula: multiply by 0.0689475729317 (psi → bar). Example: 30 psi = 2.068427 bar.
How many bar are in 1 pound per square inch?
1 psi = 0.0689475729 bar.
Is this converter accurate enough for professional use?
Yes. Linear conversions use internationally defined exact factors (SI and customary). Temperature uses exact scale relationships. Always confirm critical safety, medical, or legal measurements against your governing standard or instrument calibration.
Does conversion happen in my browser?
Yes. Values are converted locally in your browser. No account is required and your numbers are not uploaded to a server.
Can I convert Bar back to Pound per Square Inch?
Yes — use the Swap control in the converter, or open the dedicated Bar to PSI page.
What is 30 psi in bar?
30 psi is approximately 2.07 bar.
What is 40 psi in bar?
40 psi is equal to 2.76 bar.