Pressure Converter
Free Pressure Converter, Convert PSI, Bar, Pascal, ATM & Torr Instantly
Convert pressure between any units instantly with OmniConverter's free online pressure converter. 1 PSI equals 6,895 pascals, 1 bar equals 100,000 pascals, and 1 atmosphere equals 14.696 PSI. Supports PSI, bar, pascal, atmosphere (atm), and torr. Whether you're checking tyre pressure, monitoring weather, or solving engineering problems, our tool delivers precise conversions.
How It Works
Convert in three simple steps.
Enter Your Pressure Value
Input the pressure measurement into the Input Value field. For example, type 14.7 to convert standard atmospheric pressure in PSI.
Select Source and Target Pressure Units
Choose your starting unit on the left (e.g., PSI, bar, millibar, pascal, kilopascal, atmosphere) and your target unit on the right dropdown menu.
Get Your Converted Pressure Reading
The converted pressure appears instantly. Useful for tyre pressure checks, weather monitoring, engineering, HVAC systems, and scientific applications where unit accuracy is critical.
Popular Pressure Conversions
Common Benchmarks
Reference
1 Pa → Pa
1 Pa
Reference
1 Pa → bar
0.00001 bar
Reference
1 Pa → atm
0.0000098692 atm
Reference
1 Pa → psi
0.0001450377 psi
Reference
1 Pa → Torr
0.0075006376 Torr
Real-World Use Cases
Pressure conversion is used for checking and inflating tyre pressure (PSI vs bar), industrial and engineering applications (PSI), scuba diving (bar and atm for tank and ambient pressure), and HVAC systems (inches of water column, Pa).
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Get Embed CodeFrequently asked questions
Quick answers to common conversion questions
How do I convert pascals to bars?+
Divide pascals by 100,000 to get bars.
What is PSI?+
PSI means pounds per square inch, commonly used in tires and hydraulic systems.
How do I convert atm to kPa?+
Multiply atm by 101.325 to get kilopascals.
What is a Torr?+
A Torr is a unit of pressure based on millimeters of mercury, often used in vacuum work.
Can I convert bar to psi?+
Yes. Multiply bar by 14.5038 to get psi.
Why are there many pressure units?+
Different fields use different standards, such as engineering, meteorology, and chemistry.
What is a standard atmosphere?+
One atmosphere is about 101,325 pascals, roughly air pressure at sea level.
How do I convert mmHg to atm?+
Divide mmHg by 760 to estimate atmospheres.
Does pressure conversion depend on altitude?+
The unit conversion itself is fixed, but real-world pressure varies with location and altitude.
Which pressure unit is most common in science?+
Pascals are the SI unit and are widely used in scientific and engineering contexts.
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