Standard Atmosphere to Pascal
Convert atm to Pa instantly — free, no sign-up.
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About the Standard Atmosphere (atm)
The Standard Atmosphere is defined as exactly 101,325 pascals, representing average air pressure at sea level — used as a reference point across chemistry and engineering.
About the Pascal (Pa)
The Pascal is the SI unit of pressure, defined as one newton of force per square meter — small enough that everyday pressures run in the thousands or millions of pascals.
How to convert atm to Pa
- Enter the value in atm in the box above.
- The Pa equivalent updates instantly.
- Use the swap button to convert Pa back to atm just as easily.