Pressure Measurement Tool

PSI to Bar Pressure Converter

Convert pounds per square inch (PSI) to Bar pressure with high precision. Essential for automobile tire pressure, scuba tanks, and hydraulics.

Formula & Mathematical Derivation

Official equation for converting Pounds per square inch (PSI) to Bar.

Conversion Equation

bar = psi × 0.0689476

Contextual Background & Unit Standards

Pounds per square inch (PSI) is an imperial unit of pressure measuring one pound-force exerted over an area of one square inch. The bar is a metric unit of pressure defined as exactly 100,000 pascals (100 kPa), approximately equal to atmospheric pressure on Earth at sea level (1.01325 bar). To convert PSI into bar, multiply the PSI figure by approximately 0.0689476, or divide by 14.5038. For example, a passenger automobile tire inflated to a recommended pressure of 32 PSI corresponds to 32 multiplied by 0.0689476, which equals approximately 2.21 bar. This conversion is critically applied in automotive maintenance, scuba diving tank inspection (converting 3,000 PSI aluminum cylinders to ~207 bar), HVAC compressor charging, and industrial pneumatic machinery regulation.

Quick Reference Conversion Table

Pre-computed lookup values for instant reference. 100% static & search-engine indexable.

SSG Pre-rendered

Pounds per square inch (PSI)	Bar	Instant Copy
15 Pounds per square inch (PSI)	1.0342 Bar
28 Pounds per square inch (PSI)	1.9305 Bar
30 Pounds per square inch (PSI)	2.0684 Bar
32 Pounds per square inch (PSI)	2.2063 Bar
35 Pounds per square inch (PSI)	2.4132 Bar
40 Pounds per square inch (PSI)	2.7579 Bar
50 Pounds per square inch (PSI)	3.4474 Bar
100 Pounds per square inch (PSI)	6.8948 Bar
2000 Pounds per square inch (PSI)	137.8951 Bar
3000 Pounds per square inch (PSI)	206.8427 Bar