Definition
Pressure measures force distributed over an area.
P
Unit conversion category
Pressure Converter
Convert pressure units including pascals, kilopascals, bar, psi, atmospheres, torr, and mmHg.
Convert pressure units including pascals, kilopascals, bar, psi, atmospheres, torr, and mmHg.
Featured Units
Pascal
Kilopascal
Bar
PSI
Atmosphere
Torr
Millimeter of Mercury
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Educational Guide
Common Uses
Pressure conversions are used for tires, weather, vacuum systems, hydraulics, medicine, and chemistry.
Industries
Automotive, aerospace, healthcare, energy, manufacturing, and research teams use pressure units.
Tips
Use pascals or kilopascals for SI work, psi for many US mechanical systems, and mmHg for blood pressure contexts.
Frequently Asked Questions
What is the SI unit of pressure?
The pascal is the SI derived unit of pressure.
What does psi measure?
PSI measures pounds of force applied over one square inch of area.
Why are mmHg and torr close but not identical here?
Torr is defined from the standard atmosphere, while mmHg uses the conventional millimeter-of-mercury definition.
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