PSI to BAR Converter

Our psi to bar converter answers the common question: how many bar are in 1 psi (0.0689476 bar) – essential for pressure measurements.

1 psi = 0.0689475729 bar | High Precision Conversion
psi

Supports decimal values (e.g., 14.7, 30.5 psi)

bar

Precision: 4 Decimal Places | 1 psi = 0.0689475729 bar

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Quick PSI to BAR Conversions

PSI to BAR Conversion Guide

Understanding how to convert psi to bar accurately for pressure measurements.

Conversion Formula & Factor

To convert psi to bar:

Standard Conversion:

Formula: bar = psi × 0.0689475729

1 psi = 0.0689475729 bar

To convert bar to psi:

Reverse Conversion:

Formula: psi = bar ÷ 0.0689475729

1 bar = 14.50377377 psi

Example Conversions:

Convert 30 psi to bar:

30 psi × 0.0689475729 = 2.068427187 bar

Convert 5 bar to psi:

5 bar ÷ 0.0689475729 = 72.51886885 psi

Understanding Pressure Units

PSI (Pounds per Square Inch):

  • A unit of pressure in the imperial and US customary systems
  • Measures the force in pounds applied to an area of one square inch
  • Commonly used for:
    • Tire pressure in the United States
    • Hydraulic and pneumatic systems
    • Water pressure in plumbing systems
    • Industrial equipment specifications
  • Atmospheric pressure at sea level is approximately 14.7 psi

BAR:

  • A metric unit of pressure, defined as 100,000 Pascals
  • Widely used in many countries around the world
  • Commonly used for:
    • Tire pressure in most European and Asian countries
    • Automotive engineering specifications
    • SCUBA diving equipment
    • Industrial processes and manufacturing
  • 1 bar is approximately equal to atmospheric pressure at sea level

When to use each unit:

Use PSI When:
  • Checking tire pressure in US-spec vehicles
  • Working with American-made equipment
  • Following US technical specifications
  • Plumbing and HVAC systems in North America
  • Aerospace applications in the US
Use BAR When:
  • Checking tire pressure in European/Asian vehicles
  • Working with international equipment
  • SCUBA diving and underwater activities
  • Automotive engineering in global markets
  • Industrial processes using metric standards

PSI to BAR Conversion Table

Quick reference for common psi to bar conversions.

PSI (pounds per square inch) BAR kPa (kilopascals) for Reference
1 psi 0.0689 bar 6.895 kPa
10 psi 0.689 bar 68.95 kPa
14.7 psi 1.013 bar 101.3 kPa
30 psi 2.068 bar 206.8 kPa
50 psi 3.447 bar 344.7 kPa
100 psi 6.895 bar 689.5 kPa
500 psi 34.47 bar 3447 kPa
1000 psi 68.95 bar 6895 kPa
10000 psi 689.48 bar 68948 kPa

Note: 1 bar is approximately equal to atmospheric pressure at sea level (14.7 psi). For high-pressure applications, 1 kilobar (kbar) = 1000 bar = 14503.8 psi, commonly used in industrial settings.

Common Uses for PSI to BAR Conversion

Practical scenarios where converting psi to bar is essential.

Automotive Industry

Tire pressure specifications often use both units internationally.

Example: 32 psi = 2.206 bar

Plumbing Systems

Water pressure measurements in international projects.

Example: 80 psi = 5.516 bar

SCUBA Diving

Dive tank pressure is often measured in bar globally.

Example: 3000 psi = 206.84 bar

Industrial Machinery

Hydraulic and pneumatic system specifications.

Example: 2500 psi = 172.37 bar

Aerospace & Aviation

Pressure specifications for aircraft systems.

Example: 500 psi = 34.47 bar

Gas Cylinders

Pressure ratings for gas storage containers.

Example: 2200 psi = 151.69 bar

Frequently Asked Questions

Answers to common questions about psi to bar conversion.

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