How do I convert bars to psi?

To convert bars to psi, enter your value above. Our converter supports all common pressure units including PSI, bar, pascals, and atmospheres.

How accurate are these pressure conversions?

Our conversions are accurate to at least 6 decimal places using precise conversion factors. This level of accuracy is suitable for scientific, industrial, and engineering applications.

Bar to PSI Converter

Convert Bars to PSI instantly

From

bar

Result

0psi

PSI

Conversion Formula

PSI = Bar × 14.503768

Where:

bar = Bar
psi = PSI

What is a Bar?

The bar (bar) is a unit of pressure in the metric system of measurement.

What is a PSI?

The psi (psi) is a unit of pressure in the imperial system of measurement.

How to Convert Bar to PSI

Convert bars to psi instantly

Quick Reference:

1 bar = 14.503768 psi
1 psi = 0.068948 bar

Common Bar to PSI Conversions

1 bar
= 14.50 psi

5 bar
= 72.52 psi

10 bar
= 145.04 psi

25 bar
= 362.59 psi

50 bar
= 725.19 psi

100 bar
= 1450.38 psi

Conversion Reference Table

Bar (bar)	PSI (psi)
1	14.5038
2	29.0075
3	43.5113
4	58.0151
5	72.5188
10	145.0377
15	217.5565
20	290.0754
25	362.5942
50	725.1884
75	1,087.7826
100	1,450.3768
250	3,625.942
500	7,251.884
1,000	14,503.7681

Quick reference table showing common bars to psi conversions.

Real-World Pressure Conversions

🚗

Tire Pressure

Car tires are typically inflated to 30-35 PSI (2.0-2.4 bar). Proper tire pressure improves fuel efficiency and safety. Converting between PSI, bar, and kPa for international vehicles.

🌤️

Weather and Meteorology

Barometric pressure is measured in millibars (mb) or hectopascals (hPa). Standard pressure is 1013.25 mb. High pressure (>1020 mb) brings clear weather, low pressure (<1000 mb) brings storms.

🤿

Scuba Diving

Underwater pressure increases by 1 atmosphere (14.7 PSI) every 33 feet of depth. Dive computers and tanks use bar or PSI. Understanding pressure is critical for diver safety.

❄️

HVAC and Refrigeration

Air conditioning systems use PSI or bar for refrigerant pressure. Proper pressure ensures efficient cooling. Low pressure indicates leaks, high pressure suggests system problems.

🏥

Medical Applications

Blood pressure is measured in mmHg (millimeters of mercury). Normal blood pressure is around 120/80 mmHg. Medical gas cylinders also use PSI or bar.

🏭

Industrial Processes

Manufacturing uses various pressure units for hydraulics (PSI), pneumatics (bar), and vacuum systems (torr or Pa). Accurate pressure control ensures product quality.

Pressure Conversion FAQs

Common Conversion Mistakes

⚠Confusing the direction of conversion — always check whether you are converting from Bar to PSI or vice versa.
⚠Rounding too early in multi-step calculations. Keep full precision until the final result.
⚠Using outdated or approximate conversion factors. Our converter uses values traceable to international measurement standards.

Sources & Standards

Conversion factors on this page are based on definitions from the International Bureau of Weights and Measures (BIPM) and the National Institute of Standards and Technology (NIST). All factors are accurate to at least 6 decimal places.

Last updated: November 27, 2025