1. Convert to base units
pascals = input value x input unit factor
Every supported pressure unit is stored as a factor relative to pascals.
Mechanical unit converter
Pressure Unit Converter
Convert pressure units for fluids, hydraulics, pneumatics, HVAC, thermodynamics, and mechanical engineering calculations.
Live pressure conversion
Convert pressure units
Enter a value, choose the starting unit, and select a target unit. The full pressure conversion table updates automatically.
Converted value
All units
Pressure conversion table
Compare the entered value across SI, imperial, atmosphere, vacuum, and hydraulic pressure units.
Common conversions
Useful pressure conversion factors
| Conversion | Factor | Typical use |
|---|---|---|
| bar to psi | psi = bar x 14.5037738 | Hydraulics and pneumatics |
| psi to kPa | kPa = psi x 6.89475729 | Tire, hydraulic, and pressure data |
| atm to Pa | Pa = atm x 101325 | Thermodynamics |
| MPa to psi | psi = MPa x 145.037738 | Stress and high-pressure systems |
| torr to Pa | Pa = Torr x 133.322368 | Vacuum systems |
| kgf/cm2 to bar | bar = kgf/cm2 x 0.980665 | Legacy pressure data |
How it works
Pressure conversion method
2. Convert to target units
target value = base value / target unit factor
The selected result and table values are calculated from the same base value.
3. Check precision
rounding depends on scale
Very small and very large values use compact scientific notation to stay readable.
FAQ
Pressure converter questions
How do you convert bar to psi?
Multiply bar by 14.5037738 to convert to psi.
How do you convert psi to kPa?
Multiply psi by 6.89475729 to convert to kilopascals.
What is standard atmospheric pressure?
Standard atmospheric pressure is 101,325 Pa, equal to 1 atm.
Related
Mechanical Unit Converters
Acceleration Unit Converter
Convert acceleration units including m/s², ft/s², g, and Gal.
Angular Acceleration Unit Converter
Convert angular acceleration units for rotating systems and dynamics calculations.
Angular Velocity Unit Converter
Convert angular velocity units such as rad/s, deg/s, rpm, and rps.
Density Unit Converter
Convert density units including kg/m³, g/cm³, lb/ft³, and lb/in³.
Energy Unit Converter
Convert joules, kilojoules, calories, BTU, watt-hours, and other energy units.
Force Unit Converter
Convert force units including newtons, kilonewtons, pound-force, and kilogram-force.
Moment of Inertia Unit Converter
Convert mass moment of inertia units for rotating bodies and mechanical systems.
Rotational Frequency Unit Converter
Convert hertz, rpm, rps, and related rotational frequency units.
Torque Unit Converter
Convert torque units including N·m, lbf·ft, lbf·in, and kgf·m.