Calculator Suite
Pressure Converter
Convert between pascals, bar, psi, atmospheres and other pressure units
Popular Pressure Converter Conversions
Quick Presets
Base Unit Method
= Value in target unit
= Value in input unit
= Conversion factor to base
= Conversion factor from base
Category-Specific Formula
Pressure Fundamentals
Pressure is force per area (P = F/A). Pascal (Pa) is the SI unit. Atmospheric pressure at sea level is about 101,325 Pa.
Atmospheric Pressure
Standard atmosphere (atm) represents average sea-level pressure. Weather reports use millibars or inHg.
Industrial Applications
PSI is common for tire pressure and hydraulics. Bar is used in meteorology and engineering.
Medical/Scientific
Blood pressure uses mmHg. Vacuum systems use torr (1/760 of an atmosphere).
Key conversions: 1 atm = 101.325 kPa = 14.7 psi = 760 mmHg. Tire pressure is typically 32-35 psi (2.2-2.4 bar).Blood pressure 120/80 mmHg = 16/10.7 kPa.
Select Units
Choose "From" (e.g., PSI) and "To" (e.g., Bar).
Enter Value
Type the pressure to convert.
View Result
Get the converted value instantly.
🚗 Example: Tire Pressure
32 PSI = 2.21 bar = 220.6 kPa (typical car tire)
Assumes:
- • Standard atmosphere definition
- • Gauge vs absolute not specified
- • Room temperature conditions
Does NOT include:
- • Altitude corrections
- • Temperature effects on pressure
- • Dynamic pressure calculations
What is PSI?
Pounds per Square Inch. Tire pressure is typically 30-35 PSI. 1 PSI = 6894.76 Pascals.
What is standard atmosphere?
1 atm = 101,325 Pa = 14.696 PSI = 760 mmHg. Average pressure at sea level.
What is normal blood pressure in kPa?
120/80 mmHg = 16/10.7 kPa. Medical measurements use mmHg traditionally.
Bar vs PSI for tires?
European tires use bar (2.0-2.5 bar typical), US uses PSI (30-35 PSI). 1 bar ≈ 14.5 PSI.
What is vacuum pressure?
Vacuum is pressure below atmospheric. Measured in torr or mbar. Perfect vacuum = 0 absolute pressure.