Convert Pounds per Square Inch to Bar
psi to bar · pressure conversion
What are pounds per square inch and bar?
Pounds per square inch is the imperial pressure unit, standard for US tires and plumbing. A bar is 100,000 pascals, roughly equal to atmospheric pressure at sea level. For reference: car tires run around 32 psi (220 kPa), and sea-level air pressure is about 101 kPa.
How to convert pounds per square inch to bar
1 psi = 0.0689476 bar. To convert, multiply the number of pounds per square inch by 0.0689476. For example, 5 psi = 0.344738 bar, and 20 psi = 1.37895 bar. To go the other way, multiply bar by 14.5038 (since 1 bar = 14.5038 psi).
Pounds per Square Inch to Bar conversion table
| Pounds per Square Inch (psi) | Bar (bar) |
|---|---|
| 1 | 0.0689476 |
| 2 | 0.137895 |
| 5 | 0.344738 |
| 10 | 0.689476 |
| 50 | 3.44738 |
| 100 | 6.89476 |
| 1,000 | 68.9476 |
FAQ
What is 1 psi in bar?
1 psi = 0.0689476 bar. To convert any amount, multiply the number of pounds per square inch by 0.0689476.
How do I convert bar back to pounds per square inch?
Go the other way: 1 bar = 14.5038 psi, so multiply bar by 14.5038 to get pounds per square inch.
Is a pounds per square inch bigger than a bar?
No — 1 psi is the smaller unit, equal to 0.0689476 bar (it takes 14.5038 psi to make one bar).
Are these pressure conversions exact?
They use the standard internationally-defined conversion factors. Results are rounded to six significant figures for readability, which is accurate enough for everyday and most technical use.