Method
Pressure values are converted through standard factors between pascals, bar, PSI, atmospheres, torr, and mmHg.
Converters / browser tool
Pressure Converter
Convert between pascals, bar, PSI, atm, torr, and mmHg.
Torr and mmHg use their respective formal definitions — not interchanged.
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Convert pressure
live resultConverted value
1 Kilopascal (kPa) = 0.1450 PSI (pound-force per square inch)
Torr and mmHg use separate definitions that differ by less than 0.000015%. Standard atmosphere (atm) = 101,325 Pa exactly.
Context & Reference
How it works
Calculators are most useful when their assumptions are clear. Review these details to better understand the logic behind the results.
How to use it
Enter a pressure, select the input unit, and compare the converted readings.
Understand the result
Each output describes the same force per area in a different unit system.
Example
1 atmosphere is approximately 14.696 PSI.
Notes
Use the formal unit labels carefully: torr and mmHg are not silently treated as interchangeable.
Useful next steps
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