Convert atmospheres to pascals

1 atm=101,325Pa

Use the converter below to change any atmospheres value into pascals instantly — with formula, conversion table, and real-world examples.

You have

Equals

101,325

Conversion formula

Forward

pascals = atmospheres × 101,325

Reverse

atmospheres = pascals × 9.8692e-6

Example: 10 atm × 101,325 = 1,013,250 Pa.

About both units

From

Atmosphere

atm

The standard atmosphere equals 101,325 pascals exactly — defined by CGPM in 1954. Represents average sea-level atmospheric pressure. Used in chemistry, aviation and engineering as a reference pressure.

Real-world: Sea-level pressure: 1 atm. Mount Everest summit: ~0.33 atm. Submarine at 100 m: ~11 atm.

Read full atmosphere reference →

Pascal

The pascal is the SI unit of pressure — one newton per square metre. Named after Blaise Pascal. 1 Pa is a very small pressure; atmospheric pressure is about 101,325 Pa. Pressure readings in engineering are usually in kPa or MPa.

Real-world: Atmospheric pressure: 101,325 Pa. Conversation level: 0.001 Pa sound pressure. Truck tyre: 900,000 Pa.

Read full pascal reference →

Atmosphere to Pascal conversion table

Common atmospheres to pascals values for quick reference.

Atmosphere (atm)	Pascal (Pa)
1 atm	101,325 Pa
5 atm	506,625 Pa
10 atm	1,013,250 Pa
25 atm	2,533,125 Pa
50 atm	5,066,250 Pa
100 atm	10,132,500 Pa
200 atm	20,265,000 Pa
500 atm	50,662,500 Pa
1,000 atm	101,325,000 Pa
5,000 atm	506,625,000 Pa

Tips & common mistakes

Quick tips

1 atm = 101,325 Pa = 1.01325 bar = 14.696 psi.
Note: atm ≠ bar. Close but not identical.
Modern SI prefers pascals; atm is a legacy reference.

Avoid these

Using 1 atm = 1 bar exactly — off by 1.3%.
Confusing standard atm with technical atmosphere (98,066.5 Pa) or atmosphere-absolute in diving.
Applying 1 atm outside sea level without correction.

Frequently asked questions

How many pascals in a atmosphere?

One atmosphere equals 101,325 pascals.

How do I convert atmospheres to pascals?

Multiply the atmosphere value by 101,325 to get the equivalent in pascals.

What is 100 atmospheres in pascals?

100 atmospheres equals 10,132,500 pascals.

Is a atmosphere bigger than a pascal?

Yes. 1 atmosphere equals 101,325 pascals, so one atmosphere is larger.

How to convert atmospheres to pascals without a calculator?

Multiply by 101,325 for a quick estimate; use a calculator for precise results.

Related pressure conversions

📊 See full comparison matrix →

Conversions in other categories

WeightKilogram → Pound LengthKilometer → Mile TemperatureCelsius → Fahrenheit VolumeLiter → US Gallon AreaSquare Meter → Square Foot SpeedKilometer per Hour → Mile per Hour EnergyKilojoule → Kilocalorie PowerKilowatt → Mechanical Horsepower