Pressure Conversion Calculator
Convert between different pressure units including Pascal, Bar, PSI, Atmosphere, and more
Pressure Converter
0 bar
Common Pressure Examples
Sea Level Atmospheric Pressure
101,325 Pa
1 atm
Car Tire Pressure (typical)
2.2 bar
32 psi
Blood Pressure (systolic)
16 kPa
120 mmHg
Deep Sea (1000m)
10.1 MPa
100 atm
Vacuum (partial)
0.1 kPa
0.001 atm
Pressure Unit Categories
SI Units
Pascal (Pa), Kilopascal (kPa)
Atmospheric
Atmosphere (atm), Bar, Hectopascal (hPa)
Imperial
PSI, Pound-force per square foot
Mercury
mmHg, inHg, Torr
Quick Reference
1 atm =101,325 Pa
1 bar =100,000 Pa
1 psi =6,895 Pa
1 Torr =133 Pa
1 mmHg =133 Pa
Understanding Pressure Units
What is Pressure?
Pressure is defined as the force applied perpendicular to a surface divided by the area over which the force is applied. It's measured in various units depending on the application and region.
Common Applications
- •Meteorology: Atmospheric pressure (hPa, mmHg)
- •Engineering: Fluid systems (bar, psi)
- •Medicine: Blood pressure (mmHg)
- •Aviation: Altitude pressure (atm, hPa)
Unit Definitions
Pascal (Pa)
SI unit: 1 Newton per square meter
Bar
100,000 Pa, approximately atmospheric pressure
PSI
Pounds per square inch, common in the US
Atmosphere (atm)
Standard atmospheric pressure at sea level