🔧 PSI to Bar Converter
Instantly convert pressure from Pounds per Square Inch (PSI) to Bar. 1 PSI is exactly 0.0689476 Bar. Perfect for tire pressure, industrial applications, and engineering calculations.
What Is PSI?
PSI (Pounds per Square Inch) is a unit of pressure or stress based on avoirdupois units. It measures the amount of force (in pounds) applied to one square inch of area. PSI is commonly used in:
- Tire pressure , vehicle tires are typically inflated to 30–35 PSI.
- Industrial applications , hydraulic systems, pneumatic tools, and pressure vessels.
- Water and fuel systems , pump pressure, fuel injection, and water supply.
- Scuba diving , tank pressure is often measured in PSI.
What Is Bar?
The Bar is a metric unit of pressure defined as exactly 100,000 Pascals (Pa). It is not an SI unit but is widely accepted and used in many countries. 1 Bar is approximately equal to the average atmospheric pressure at sea level (1 atm ≈ 1.01325 Bar). Bar is commonly used in:
- Meteorology , atmospheric pressure is often reported in millibars (mbar).
- Engineering , hydraulic and pneumatic systems in Europe and Asia.
- Scuba diving , tank pressure is often measured in Bar.
- Automotive , tire pressure in many countries is measured in Bar.
How to Convert PSI to Bar
The formula to convert PSI to Bar is:
Bar = PSI × 0.0689476
or Bar = PSI ÷ 14.5038
For example, to convert 14.5038 PSI (which is exactly 1 Bar) to Bar:
Bar = 14.5038 × 0.0689476
Bar = 1.0000 Bar
To convert a common tire pressure of 35 PSI to Bar:
Bar = 35 × 0.0689476
Bar = 2.4132 Bar
Why Use This Converter?
- Instant results: Get accurate PSI to Bar conversions in real-time.
- Step-by-step breakdown: See exactly how the conversion is calculated.
- Common reference table: Quickly check pressure values from 1 PSI to 150 PSI.
- Free & private: No registration, no data storage , all calculations are done in your browser.
❓ PSI to Bar FAQ
What is the formula to convert PSI to Bar?
The formula is Bar = PSI × 0.0689476. Alternatively, you can use Bar = PSI ÷ 14.5038.
How many Bar is 1 PSI?
1 PSI is equal to 0.0689476 Bar.
How many PSI is 1 Bar?
1 Bar is equal to 14.5038 PSI.
What is the difference between PSI and Bar?
PSI (Pounds per Square Inch) is an imperial unit commonly used in the United States and UK. Bar is a metric unit used in most other countries. 1 Bar is approximately equal to 14.5 PSI.
What is the typical tire pressure in PSI and Bar?
Most car tires require between 30–35 PSI, which is equivalent to 2.07–2.41 Bar.
What is standard atmospheric pressure in PSI and Bar?
Standard atmospheric pressure at sea level is 14.7 PSI or 1.01325 Bar.
How accurate is this converter?
This converter uses the exact conversion factor 0.0689476 for high accuracy. You can adjust the decimal precision to suit your needs.
Is this converter free?
Yes, this converter is completely free to use. No registration or personal data storage is required.
Where is PSI commonly used?
PSI is commonly used in the United States, United Kingdom, and other countries for tire pressure, industrial applications, hydraulics, and scuba diving.
Where is Bar commonly used?
Bar is commonly used in Europe, Asia, and most other countries for meteorology, engineering, automotive, and scuba diving applications.