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Convert pressure between pascals, bar, PSI, atmospheres, mmHg, and more.
All Conversions
Pressure Conversion:
Target = Input x (Source Pa Factor / Target Pa Factor)
Pascal is the SI base unit. All values are first converted to pascals, then to the target unit.
Standard atmospheric pressure is 1 atm = 101,325 Pa = 14.696 psi = 1.01325 bar = 760 mmHg.
Most passenger car tires are inflated to 32-35 PSI. Check the sticker on the driver's door jamb or your vehicle manual for the specific recommendation.
Gauge pressure is relative to ambient atmospheric pressure. Absolute pressure includes atmospheric pressure. Tire pressure is typically measured as gauge pressure.
mmHg (millimeters of mercury) has been used in medicine for over a century for blood pressure measurements. Normal blood pressure is around 120/80 mmHg.
A bar is a metric unit of pressure equal to 100,000 Pa, slightly less than 1 standard atmosphere. It is widely used in meteorology and industry.