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Pressure
Psi to Bar
Convert psi (psi) to bar (bar). Type a value below to see the result update instantly. Reference table and formula included.
Calculator
1 psi = 0.068948 bar
Psi to Bar Conversion Table
Common values, ready to copy:
| psi | bar |
|---|---|
| 1 psi | 0.068948 bar |
| 2 psi | 0.137895 bar |
| 5 psi | 0.344738 bar |
| 10 psi | 0.689476 bar |
| 25 psi | 1.7237 bar |
| 50 psi | 3.4474 bar |
| 100 psi | 6.8948 bar |
| 1,000 psi | 68.9476 bar |
Formula
bar = psi × 0.0689476
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 Psi and Bar
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.
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.
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 bar = psi × 0.0689476, 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 psi and bar 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.