Convert psi to bar
Enter the value to convert from pound per square inch to bar.
How to Convert Pound per square inch to Bar
Converting pound per square inch to bar is straightforward using our conversion calculator.
Conversion Formula
bar = psi ÷ 14.503773773Reverse conversion: Convert bar to psi
Comparison: Psi vs Bar
When to Use Each Unit
Psi: Primary pressure unit in United States for tires, hydraulics, pneumatics, and industrial applications.
Bar: Common in meteorology, engineering, diving, and industrial applications. Standard for European pressure measurements.
Common Conversion Values
- 1 psi ≈ 6,895 Pa
- 1 psi ≈ 6.895 kPa
- 1 psi ≈ 0.0689 bar
- 14.7 psi = 1 atm
About Per
Definition: Pound per square inch (symbol: psi) measures pressure as force in pounds applied over one square inch area.
History: Imperial unit developed with pound-force and inch measurements. Standard in United States engineering and industry.
Current Use: Primary pressure unit in United States for tires, hydraulics, pneumatics, and industrial applications.
Examples: Car tires: 30-35 psi, bike tires: 30-100 psi, hydraulic systems: 1000-5000 psi, air compressors: 100-200 psi
About Bar
Definition: The bar is a metric unit of pressure equal to 100,000 pascals, approximately equal to atmospheric pressure.
History: Introduced in 1909 from Greek "baros" (weight). Widely adopted for its convenient magnitude relative to atmospheric pressure.
Current Use: Common in meteorology, engineering, diving, and industrial applications. Standard for European pressure measurements.
Examples: Weather systems: 0.98-1.05 bar, tire pressure: 2-3 bar, scuba tanks: 200-300 bar, steam systems: 1-20 bar