Convert Bar to PSI
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Science
Real-World Reference Values
| Value | PSI | |
|---|---|---|
| 1 bar | 14.504 psi | 1 bar — slightly less than 1 atmosphere |
| 2.2 bar | 31.908 psi | Typical European car tire pressure |
| 200 bar | 2,900.755 psi | Full SCUBA tank |
| 10 bar | 145.038 psi | Water pressure at 100 m depth |
Common Uses
- Setting tire pressure at a US gas station from European car specifications
- Translating European industrial equipment ratings to US standards
- Dive tables show bar ratings, but your US regulator is rated in PSI
Practical Tips
Quick Conversions
| Unit Name | Symbol | Per 1 Bar |
|---|---|---|
| Atmosphere | atm | 0.986923 |
| Bar | bar | 1 |
| Inch of Mercury | inHg | 29.53 |
| Kilopascal | kPa | 100 |
| Megapascal | MPa | 0.1 |
| Millibar | mbar | 1000 |
| Millimeter of Mercury | mmHg | 750.064 |
| Pascal | Pa | 100000 |
| PSI | psi | 14.5038 |
| Torr | Torr | 750.064 |
Frequently Asked Questions
How do I convert Bar to PSI?
To convert Bar to PSI, use the conversion where 1 Bar (bar) = 14.5038 PSI (psi). For example, 1 Bar = 14.5038 PSI.
What are common Bar to PSI conversions?
Here are common conversions: 1 Bar = 14.5038 PSI, 5 Bar = 72.5189 PSI, 10 Bar = 145.038 PSI, 25 Bar = 362.594 PSI, 50 Bar = 725.189 PSI, 100 Bar = 1450.38 PSI.
When would I need to convert Bar to PSI?
Setting tire pressure at a US gas station from European car specifications. Translating European industrial equipment ratings to US standards. Dive tables show bar ratings, but your US regulator is rated in PSI.
How precise are the conversions?
All conversions use exact factors verified against NIST and ISO standards with up to 10 significant figures of precision. Results are calculated using IEEE 754 double-precision arithmetic, which provides approximately 15-17 significant digits. For temperature and other non-linear conversions, exact formulas are used rather than approximations.
How many PSI is 1 Bar? (1 bar — slightly less than 1 atmosphere)
1 Bar equals 14.504 psi PSI. This is a frequently referenced value because it represents 1 bar — slightly less than 1 atmosphere.