psi to bar
1 psi equals 0.0689 bar.
View table →Everyday & Tire (psi / bar / mbar)
bar to psi
1 bar equals 14.5 psi.
View table →kPa to psi
1 kPa equals 0.145 psi.
View table →psi to kPa
1 psi equals 6.89 kPa.
View table →psi to atm
1 psi equals 0.068 atm.
View table →atm to psi
1 atm equals 14.7 psi.
View table →mbar to bar
1 mbar equals 0.001 bar.
View table →bar to mbar
1 bar equals 1000 mbar.
View table →psi to mmHg
1 psi equals 51.71 mmHg.
View table →mmHg to psi
1 mmHg equals 0.0193 psi.
View table →Scientific & Weather (Pa / kPa / atm / mmHg)
Frequently Asked Questions
How many bar are in 1 psi?
One psi equals about 0.0689 bar. Going the other way, 1 bar is about 14.5 psi.
Are 1 bar and 1 atm the same?
No. 1 bar equals exactly 100,000 Pa, while 1 atmosphere (atm) is 101,325 Pa — they are about 1.3% apart.
Is psi gauge or absolute pressure?
In practice, psi is usually gauge pressure (psig) — above ambient air. Tire pressures are quoted this way. Absolute pressure (psia) is about 14.7 psi higher.
What is a pascal?
The pascal (Pa) is the SI unit of pressure. 1 kPa is 1,000 Pa and 1 MPa is 1,000,000 Pa. The bar, atm, psi, and mmHg are older or application-specific units.
Are these conversions exact?
Yes. Pressure conversions rest on fixed factors; the values are only rounded for readability.