Convert psi to Bar
1 psi equals 0.06894757293 bar.
1 psi = 0.06894757293 bar
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk psi to bar converter to paste a column from Excel.
How to Convert psi to Bar
- 1 psi = 0.06894757293 bar
- 1 bar = 14.50377377 psi
- Example: convert 15 psi to bar: 15 psi = 15 × 0.06894757293 bar = 1.034213594 bar
Formula
bar = psi × 0.06894757293168
or bar = psi ÷ 14.50377377302
Derivation from SI units:
- 1 psi = 1 lbf/in² = (0.45359237 kg × 9.80665 m/s²) ÷ (0.0254 m)² = 6894.757293168 Pa
- 1 bar = 10⁵ Pa (exact, by definition)
- 1 psi = 6894.757293168 Pa ÷ 100000 Pa per bar = 0.06894757293168 bar
Both units are defined exactly, so the factor is exact. psi definition: psi; Bar definition: bar.
Worked examples
- 14.5 psi is almost exactly 0.9997398075 bar.
14.5 psi × 0.06894757293 = 0.9997398075 bar - A hydraulic system at 3000 psi is at 206.8427188 bar.
3000 psi × 0.06894757293 = 206.8427188 bar
psi to Bar conversion table
| psi | Bar |
|---|---|
| 0.01 psi | 0.0006894757293 bar |
| 0.05 psi | 0.003447378647 bar |
| 0.1 psi | 0.006894757293 bar |
| 0.25 psi | 0.01723689323 bar |
| 0.5 psi | 0.03447378647 bar |
| 1 psi | 0.06894757293 bar |
| 2 psi | 0.1378951459 bar |
| 5 psi | 0.3447378647 bar |
| 10 psi | 0.6894757293 bar |
| 14.7 psi | 1.013529322 bar |
| 15 psi | 1.034213594 bar |
| 20 psi | 1.378951459 bar |
| 25 psi | 1.723689323 bar |
| 30 psi | 2.068427188 bar |
| 32 psi | 2.206322334 bar |
| 35 psi | 2.413165053 bar |
| 40 psi | 2.757902917 bar |
| 50 psi | 3.447378647 bar |
| 60 psi | 4.136854376 bar |
| 80 psi | 5.515805835 bar |
| 100 psi | 6.894757293 bar |
| 125 psi | 8.618446616 bar |
| 150 psi | 10.34213594 bar |
| 200 psi | 13.78951459 bar |
| 500 psi | 34.47378647 bar |
| 1000 psi | 68.94757293 bar |
| 3000 psi | 206.8427188 bar |
| 5000 psi | 344.7378647 bar |
Where it's used
US compressors, hydraulics and tyre gauges use psi; European equipment uses bar. Dividing psi by about 14.5 gives bar.
psi to other pressure units
| Conversion | 1 psi equals |
|---|---|
| psi to pascal | 6894.757293 Pa |
| psi to kilopascal | 6.894757293 kPa |
| psi to megapascal | 0.006894757293 MPa |
| psi to bar | 0.06894757293 bar |
| psi to millibar | 68.94757293 mbar |
| psi to decibar | 0.6894757293 dbar |
| psi to torr | 51.71493257 Torr |
| psi to millimeter of mercury | 51.7149252 mmHg |
| psi to millimeter of water | 703.0695796 mmH₂O |
| psi to centimeter of water | 70.30695796 cmH₂O |
| psi to inch of water | 27.67990471 inH₂O |
| psi to inch of water (60 °F) | 27.7075924 inH₂O (60 °F) |
| psi to inch of mercury | 2.036020677 inHg |
| psi to atmosphere | 0.06804596391 atm |
| psi to barye | 68947.57293 Ba |
Frequently asked questions
How many psi is 1 bar?
1 bar = 14.50377377 psi, so roughly 14.5 psi.
How many bar are in 1 psi?
1 psi = 0.06894757293 bar.
How do I convert psi to bar?
Multiply the value in psi by 0.06894757293, or divide it by 14.50377377. For example, 15 psi × 0.06894757293 = 1.034213594 bar.
Is the psi to bar conversion exact?
Yes. Both units are defined exactly, so the ratio is exact; its decimal form does not terminate and is shown here to 10 significant figures (more with the precision selector).
Sources
- Guide for the Use of the International System of Units (SI), NIST Special Publication 811, 2008 Edition, National Institute of Standards and Technology , Appendix B.8, "pound-force per square inch (psi)".
- Guide for the Use of the International System of Units (SI), NIST Special Publication 811, 2008 Edition, National Institute of Standards and Technology , Appendix B.8, "bar".
Last reviewed: . Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.
Cite this page
APA
Scientific Converters. (2026, October 15). Convert psi to Bar. Retrieved October 17, 2026, from https://scientificconverters.com/pressure/psi-to-bar/
IEEE
Scientific Converters, "Convert psi to Bar," scientificconverters.com. Accessed: Oct. 17, 2026. [Online]. Available: https://scientificconverters.com/pressure/psi-to-bar/