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Pressure
Bar to Psi
Convert bar (bar) to psi (psi). Type a value below to see the result update instantly. Reference table and formula included.
Calculator
1 bar = 14.5038 psi
Bar to Psi Conversion Table
Common values, ready to copy:
| bar | psi |
|---|---|
| 1 bar | 14.5038 psi |
| 2 bar | 29.0075 psi |
| 5 bar | 72.5188 psi |
| 10 bar | 145.04 psi |
| 25 bar | 362.59 psi |
| 50 bar | 725.19 psi |
| 100 bar | 1450.38 psi |
| 1,000 bar | 14503.77 psi |
Formula
psi = bar × 1.45037681e+1
Pressure is force per area. 1 atm = 101.325 kPa = 14.696 psi = 760 mmHg. Bar is a metric working unit close to atmospheric pressure (1 bar = 100 kPa).
About Bar and Psi
Bar (bar): Defined as exactly 100,000 pascals, or roughly atmospheric pressure at sea level; the name comes from the Greek baros meaning weight. Common uses: European weather reports, tire pressure in some countries (and motorcycles globally), gas cylinder pressures, and brewery/winery pressures.
Psi (psi): Pounds-force per square inch, the customary US pressure unit; 1 psi = 6,894.76 Pa. Common uses: US tire pressure (car tires typically 30-35 psi), US gas grills (10-12 psi propane), industrial hydraulics in the US, and US plumbing pressure specifications.
How the conversion works
Pressure is force per area. 1 atm = 101.325 kPa = 14.696 psi = 760 mmHg. Bar is a metric working unit close to atmospheric pressure (1 bar = 100 kPa).
The exact relationship is psi = bar × 1.45037681e+1, which the calculator at the top of this page applies in both directions. Type into either field and the other updates immediately.
When this conversion matters
Converting between bar and psi comes up wherever pressure measurements move between systems — from one country's conventions to another's, from a scientific reference to a practical specification, or from one industry's working unit to another's. The calculator and reference table above cover the everyday range; for unusual values you can type any number into either field.