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Pressure Converter

Bar to Pound per Square Inch Converter

Convert Bar (bar) to Pound per Square Inch (psi) instantly with our interactive tool, benchmark tables, and detailed unit information.

1 bar = 14.5038 psi
Editable
bar
Input
Auto-Calculated
psi
Result
Pressure conversion — instant results

Convert Bar to Pound per Square Inch

1 bar = 14.5038 psi
Bar (bar) Pound per Square Inch (psi)
1 bar 14.503774 psi
5 bar 72.518869 psi
10 bar 145.037738 psi
25 bar 362.594344 psi
50 bar 725.188689 psi
100 bar 1,450.377377 psi
500 bar 7,251.886887 psi
1,000 bar 14,503.773773 psi

Convert Pound per Square Inch to Bar

1 psi = 0.0689 bar
Pound per Square Inch (psi) Bar (bar)
1 psi 0.068948 bar
5 psi 0.344738 bar
10 psi 0.689476 bar
25 psi 1.723689 bar
50 psi 3.447379 bar
100 psi 6.894757 bar
500 psi 34.473786 bar
1,000 psi 68.947573 bar

About Bar and Pound per Square Inch

Detailed information about both units of measurement.

METRIC UNIT

Bar

bar
Definition
A metric unit of pressure equal to 100,000 pascals. Slightly less than standard atmospheric pressure.
SI / Standard Information
Defined as 100,000 Pa (100 kPa). 1 bar ≈ 0.987 atm. Widely used in European engineering, diving, and automotive contexts.
Approximate Comparison
One bar is slightly less than one atmosphere of pressure. 1 bar = 14.5 PSI.
Practical Applications
  • European tire pressure measurement
  • Scuba diving depth measurement
  • Industrial compressed air systems
  • European weather (millibar = hPa)
Real-World Examples
  • Car tire pressure is about 2.0-2.5 bar
  • Scuba tanks are filled to about 200-300 bar
  • Standard atmospheric pressure is 1.013 bar
IMPERIAL UNIT

Pound per Square Inch

psi
Definition
Pounds of force per square inch. The US standard for tire pressure, hydraulics, and engineering.
SI / Standard Information
Defined relative to Pa: 1 psi ≈ 6,894.76 Pa. The primary pressure unit in US automotive, industrial, and engineering contexts.
Approximate Comparison
One PSI is about 6.9 kPa or roughly the pressure of a tall drinking straw full of water.
Practical Applications
  • US tire pressure measurement
  • US hydraulic system pressure
  • US water system pressure
  • US HVAC refrigerant pressure
Real-World Examples
  • Car tire pressure is typically 30-36 PSI
  • Home water pressure is about 40-60 PSI
  • A hydraulic press might operate at 3,000-10,000 PSI

About Converting Bar to Pound per Square Inch

Our Bar to Pound per Square Inch converter provides instant, accurate conversion between these two essential pressure units. Whether you are working in engineering, construction, education, or everyday pressure measurement, this tool delivers precise results with zero friction.

The Bar (bar) is a metric unit of pressure. A metric unit of pressure equal to 100,000 pascals. Slightly less than standard atmospheric pressure. One bar is slightly less than one atmosphere of pressure. 1 bar = 14.5 PSI.

The Pound per Square Inch (psi) is a imperial unit of pressure. Pounds of force per square inch. The US standard for tire pressure, hydraulics, and engineering. One PSI is about 6.9 kPa or roughly the pressure of a tall drinking straw full of water.

Conversion Formula & Worked Examples

The conversion between bar and psi uses the following mathematical relationship:

Pound per Square Inch = Bar × 14.503774

Bar = Pound per Square Inch × 0.068948

Whether you need to convert for european tire pressure measurement or us tire pressure measurement, our interactive converter provides instant, accurate results.

Example

1 bar

=

14.5038 psi

Example

5 bar

=

72.5189 psi

Example

10 bar

=

145.0377 psi

Reverse Direction

Need to convert Pound per Square Inch back into Bar?

Switch conversion direction to view Pound per Square Inch → Bar tables, benchmarks, and detailed info.

Open Pound per Square Inch → Bar

Practical Use Cases & Applications

bar Bar

  • European tire pressure measurement
  • Scuba diving depth measurement
  • Industrial compressed air systems
  • European weather (millibar = hPa)

psi Pound per Square Inch

  • US tire pressure measurement
  • US hydraulic system pressure
  • US water system pressure
  • US HVAC refrigerant pressure

Frequently Asked Questions

Common questions about this conversion and related measurement topics.

How do I convert Bar to Pound per Square Inch?
To convert Bar (bar) to Pound per Square Inch (psi), multiply the bar value by the conversion factor. Our converter below handles this instantly — just enter the value in bar and the psi result appears in real time.
How many Pounds per Square Inch are in one bar?
One bar (bar) equals approximately 14.503774 pound per square inch (psi). This conversion factor is constant and can be used for any bar value.
What is the formula to convert bar to psi?
The conversion formula is: <strong>Pound per Square Inch = Bar × 14.503774</strong>. For example, 5 bar × 14.5038 = 72.5189 psi, and 10 bar × 14.5038 = 145.0377 psi.
Can I convert Pound per Square Inch back to Bar?
Yes! Use the reverse direction on our converter, or visit our dedicated <a href="/pressure/psi-to-bar/" class="text-accent-teal underline">Pound per Square Inch to Bar converter</a>. The reverse conversion factor is approximately 1 psi = 0.068948 bar.
Where is Bar commonly used?
European tire pressure measurement, Scuba diving depth measurement, Industrial compressed air systems. A metric unit of pressure equal to 100,000 pascals. Slightly less than standard atmospheric pressure.
What is the difference between Bar and Pound per Square Inch?
Bar (bar) and Pound per Square Inch (psi) are both units of pressure. Bar belongs to the metric system, while Pound per Square Inch belongs to the imperial system. Understanding the conversion between them is essential for international work in pressure measurement.
What are some real-world examples of bar and psi?
Bar: Car tire pressure is about 2.0-2.5 bar; Scuba tanks are filled to about 200-300 bar Pound per Square Inch: Car tire pressure is typically 30-36 PSI; Home water pressure is about 40-60 PSI

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About This Conversion ℹ

This Bar to Pound per Square Inch converter provides accurate, real-time conversions between these two pressure units.

Both units are among the most commonly used pressure measurements — rated 8/10 and 9/10 in popularity.

Bookmark this page for quick access to the Bar → Pound per Square Inch converter whenever you need precise unit conversion.

Conversion History

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