Pressure Converter
Convert between Pascal, kPa, MPa, bar, PSI, atm, and mmHg.
About this tool
Pressure is a fundamental physical quantity that describes the force exerted per unit area, and converting between different pressure units is essential for engineers, scientists, and technicians working across industries. Whether you're dealing with atmospheric pressure, tire pressures, or engineering specifications from different countries, having a reliable pressure converter eliminates calculation errors and saves time.
This tool converts seamlessly between seven commonly used pressure units: Pascal (Pa), kilopascal (kPa), megapascal (MPa), bar, pound-force per square inch (PSI), atmosphere (atm), and millimeter of mercury (mmHg). Simply enter a value in your source unit, select the unit you want to convert to, and the result appears instantly without clicking a button—ideal for quick reference or iterative calculations.
Pressure units vary widely by industry and region: engineers in North America often use PSI, automotive tire pressures are measured in bar or kPa, hydraulic systems use MPa or bar, and atmospheric or medical instruments may use mmHg or atm. This tool is invaluable for students, HVAC technicians, automotive professionals, and anyone comparing specifications across different standards.
Frequently Asked Questions
Code Implementation
# Pressure conversions in Python
def pa_to_psi(pa):
return pa / 6894.757
def psi_to_pa(psi):
return psi * 6894.757
def bar_to_atm(bar):
return bar / 1.01325
def pa_to_mmhg(pa):
return pa / 133.322
def pa_to_hpa(pa):
return pa / 100
# Examples
print(pa_to_psi(101325)) # 14.696 PSI (1 atm)
print(psi_to_pa(32)) # 220632 Pa (typical tire pressure)
print(bar_to_atm(1)) # 0.9869 atm
print(pa_to_mmhg(101325)) # 760.0 mmHg
print(pa_to_hpa(101325)) # 1013.25 hPaComments & Feedback
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