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Pressure Converter

Spelling: American | British
Use this pressure converter to convert instantly between bars, gigapascals, kilopascals, millibars, newtons per square meter, pounds per square inch and other metric and imperial pressure units.


Disclaimer: Whilst every effort has been made in building this calculator, we are not to be held liable for any damages or monetary losses arising out of or in connection with the use of it. This tool is here purely as a service to you, please use it at your own risk. Full disclaimer. Do not use calculations for anything where loss of life, money, property, etc could result from inaccurate calculations.

Conversion units for the Pressure Converter

Atmospheres (atm), Bars, Exapascals (EPa), Gigapascals (GPa), Hectopascals (hPa), Inches Mercury (inHg), Kilogram / Square Centimeter (kg/cm2), Kilopascals (kPa), Megapascals (MPa), Millibars (mbar), Millimeters Mercury (mmHg), Newtons / Square Centimeter (N/cm2), Newtons / Square Meter (N/m2), Pascals (Pa), Petapascals (PPa), Pounds Per Square Inch (psi), Terapascals (TPa), Torr,

Explanation is also available for converting mmHg to kPa and mmHg to atm. There's also an individual mmHg to atm converter available.


To help with productivity, we now set a cookie to store the last units you have converted from and to. This means that when you re-visit this pressure converter, the units will automatically be selected for you.