Pressure Converter
Decode pressure variations precisely across PSI, Bar, kPa, atm, and mmHg for automotive tire pressures, atmospheric weather data, and scientific measurements. Vital for meteorologists, automotive technicians, and laboratory professionals requiring accurate pressure unit conversions.
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Complete Guide: Pressure Converter
Everything you need to know about using this tool effectively
The Pressure Converter transforms pressure measurements between PSI, bar, pascal, kilopascal, atmosphere, torr, and mmHg. These units are used across engineering, scuba diving, weather, HVAC, and industrial applications. You enter a value in one unit and see the equivalent in all others. All processing happens in the browser.
This tool applies standard pressure conversion factors: 1 bar = 100,000 pascals = 14.5038 PSI = 0.9869 atm. The tool normalizes to pascals internally and converts to all other units.
Checking tire pressure in different units
Convert 32 PSI to bar (2.207 bar) for a car with metric tire specifications.
Scuba diving tank pressure
Convert a 200 bar tank pressure to PSI (2,900 PSI) for comparison with US equipment.
Weather barometer readings
Convert atmospheric pressure from hPa (millibars) to inches of mercury for weather analysis.
Industrial pressure specifications
Convert a pressure rating from PSI to pascal for an engineering calculation.
Enter a value
Type the pressure and select the source unit.
View all conversions
The tool shows the equivalent in all units.
Copy a value
Copy the unit you need.
1 bar = 14.5038 PSI = 100,000 Pa = 0.9869 atm.
Standard atmospheric pressure is 1 atm = 101,325 Pa = 14.696 PSI = 760 mmHg.
Tire pressure in the US is measured in PSI. In Europe it is measured in bar.
Scuba tanks are typically rated at 200-300 bar.
What units are supported?
PSI, bar, pascal, kilopascal, atmosphere, torr, and mmHg.
How do I convert PSI to bar?
Divide PSI by 14.5038. For example, 30 PSI = 2.068 bar.
Is my data sent to a server?
No. All conversion happens in your browser. Nothing is transmitted.
What is standard atmospheric pressure?
Standard atmospheric pressure at sea level is 1 atm = 101,325 Pa = 14.696 PSI = 1.01325 bar = 760 mmHg.
Can I convert decimal values?
Yes. The tool accepts any positive number including decimals.