ΣMyCalc
ΣMyCalc

Pressure Converter

Convert between pascals, PSI, bar, atmospheres, and other pressure units.

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Conversion Result

1 Atmospheres (atm)

→

14.69594301

Pounds/Sq Inch (psi)

💨 Pressure References

1 atmosphere = 14.696 psi

1 bar = 14.504 psi

1 atmosphere = 1.01325 bar

1 psi = 6,894.76 Pa

🚗 Common Pressures

Car tire: 32-35 psi

Bicycle tire: 80-130 psi

Scuba tank: 200+ bar

Sea level air: 1 atm (14.7 psi)

How to Use the Pressure Calculator

Enter a pressure value, select the current unit (pascals, PSI, bar, atmospheres, etc.), choose your target unit, and get instant conversion. Used for tire pressure, weather, diving, and industrial applications.

Formula

All pressure values convert through pascals (base SI unit). value_in_pa = input × from_factor; result = value_in_pa ÷ to_factor.

History & Interesting Facts

💡 Did You Know?

PSI (pounds per square inch) is common in the USA. 1 atmosphere = 14.696 psi, which is standard air pressure at sea level.

Origin & History

The pascal (Pa) is the SI unit of pressure. Atmospheric pressure at sea level is 101,325 Pa (1 atmosphere).

Fascinating Facts

  • 1

    1 atmosphere = 101,325 Pa = 14.696 psi = 1.01325 bar

  • 2

    Car tire pressure: 32-35 psi typical

  • 3

    Bicycle tire pressure: 80-130 psi typical

  • 4

    Scuba diving: Measured in bar or atmospheres

  • 5

    Weather: Reported in millibars or inches of mercury

  • 6

    Industrial: Often measured in bar or psi

Frequently Asked Questions

What is standard atmospheric pressure?

Standard atmospheric pressure at sea level is 101,325 Pa, 1 atmosphere, 14.696 psi, or 1.01325 bar.

What should my car tire pressure be?

Most cars need 32-35 psi. Check your vehicle's door jamb or manual for exact specifications.

How many psi is 1 bar?

1 bar = 14.5038 psi. Approximately 14.5 psi, making bar conversions straightforward.

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