Pressure converter
Convert psi to bar, atm, kPa, mmHg and inches of mercury.
- ๐บ๐ธ US federal & state rules
- NIST SP 811 conversion factors
- See sources
psi to bar
2.206322334 bar
32 psi = 2.206322334 bar
- 1 psi
- 0.06894757293 bar
- 1 bar
- 14.50377377 psi
Results are rounded to 10 significant digits.
Common values, psi to bar
| 0.5 psi | 0.0344738 bar |
|---|---|
| 1 psi | 0.0689476 bar |
| 2 psi | 0.137895 bar |
| 3 psi | 0.206843 bar |
| 4 psi | 0.27579 bar |
| 5 psi | 0.344738 bar |
| 10 psi | 0.689476 bar |
| 12 psi | 0.827371 bar |
| 20 psi | 1.37895 bar |
| 25 psi | 1.72369 bar |
| 50 psi | 3.44738 bar |
| 100 psi | 6.89476 bar |
| 1,000 psi | 68.9476 bar |
32 psi in every unit
| Pounds per square inch (psi) | 32 psi |
|---|---|
| Bar | 2.206322334 bar |
| Standard atmospheres (atm) | 2.177470845 atm |
| Kilopascals (kPa) | 220.6322334 kPa |
| Pascals (Pa) | 220,632.2334 Pa |
| Millibars (mbar, hPa) | 2,206.322334 mbar |
| Millimeters of mercury (mmHg) | 1,654.877607 mmHg |
| Inches of mercury (inHg) | 65.15265475 inHg |
Show the math
| To Pa | 32 psi ร 6,894.757293 = 220,632.2334 Pa |
|---|---|
| To bar | 220,632.2334 Pa รท 100,000 = 2.206322334 bar |
What to do next
How it works
Every unit goes through pascals. One psi is 6,894.757 Pa, one bar is exactly 100,000 Pa, one standard atmosphere is exactly 101,325 Pa and one millibar is 100 Pa (the same as a hectopascal).
Things to keep in mind
mmHg and inHg use the conventional values listed by NIST. Real mercury columns change slightly with temperature, so lab readings may need a correction.
Conversion factors
| 1 psi equals | Value |
|---|---|
| Bar | 0.06894757293 bar |
| Standard atmospheres (atm) | 0.06804596391 atm |
| Kilopascals (kPa) | 6.894757293 kPa |
| Pascals (Pa) | 6,894.757293 Pa |
| Millibars (mbar, hPa) | 68.94757293 mbar |
| Millimeters of mercury (mmHg) | 51.7149252 mmHg |
| Inches of mercury (inHg) | 2.036020461 inHg |
Sources
Rules applied as of 2026-10-19. See the sources below for details.
- NIST SP 811, Appendix B.8: Factors for units listed alphabeticallyChecked 2026-10-19
- NIST: U.S. survey foot retired (acre now uses the international foot)Checked 2026-10-19
Frequently asked questions
How do I convert psi to bar?
Divide by about 14.504. A car tire at 32 psi is about 2.21 bar, and 35 psi is about 2.41 bar.
How many psi is one atmosphere?
About 14.696 psi. One standard atmosphere is exactly 101,325 Pa, or 1.01325 bar.
What is inHg used for?
US weather reports and aircraft altimeters give air pressure in inches of mercury. Standard sea level pressure is about 29.92 inHg.
Is psi on a tire gauge absolute pressure?
No. Tire gauges show gauge pressure, the amount above the outside air. The conversion factor is the same either way.