CONVERSION · PRESSURE

Standard atmospheres to pascals converter

Convert standard atmospheres to pascals with an editable calculator, worked example, formula and reference table. Check the unit definitions before you convert.

Updated · How we check
TRY YOUR OWN NUMBER Reverse conversion

Use a decimal point, such as 2.5. Enter a value in atm; the result is in Pa.

Pascals≈ 101,325Pa

Formula

Pa ≈ atm × 101,325

Worked example

Convert 1 atm to Pa:

1 atm ≈ 101,325 Pa

Multiply your atm value by the factor above. The calculator uses the full conversion factor before rounding the displayed answer.

Standard atmospheres to pascals table

Reference values rounded to 10 significant digits. Use the converter above for other amounts.

Approximate conversion reference
Standard atmospheres (atm)Pascals (Pa)
0.1≈ 10,132.5
0.5≈ 50,662.5
1≈ 101,325
2≈ 202,650
5≈ 506,625
10≈ 1,013,250
25≈ 2,533,125
50≈ 5,066,250
100≈ 10,132,500
1000≈ 101,325,000

Understanding standard atmospheres

One standard atmosphere is defined as 101,325 pascals. It is a reference unit, not a statement of the actual atmospheric pressure at your location.

Understanding pascals

A pascal equals one newton per square meter. Converting pascals changes the pressure unit while keeping the original gauge or absolute reference unchanged.

Precision and rounding

The calculator keeps decimal precision during the conversion. Displayed values use up to 10 significant digits; an approximation sign marks the reference results. Keep extra digits until your final measurement or purchase decision.

References

Definitions and method references. Example rates and prices on this page are editable assumptions.