Pascals to Atmospheres Converter
Enter the pressure in pascals below to convert it to atmospheres.
Convert Pascals to Atmospheres
Enter a value in pascals (Pa) to convert to atmospheres (atm).
Pascal to Standard Atmosphere Conversion Table
Table showing various pascal measurements converted to atmospheres. Click any preset value or arrow to load it into the converter.
| Pascals (Pa) | Atmospheres (atm) |
|---|---|
| 1 Pa | 0.000009869 atm |
| 10 Pa | 0.000098692 atm |
| 100 Pa | 0.000986923 atm |
| 1,000 Pa | 0.0098692 atm |
| 10,000 Pa | 0.0986923 atm |
| 100,000 Pa | 0.9869233 atm |
| 1,000,000 Pa | 9.8692327 atm |
| 5,000,000 Pa | 49.3461633 atm |
| 10,000,000 Pa | 98.6923267 atm |
| 25,400,000 Pa | 250.6785097 atm |
How to Convert Pascals to Atmospheres
To convert pascals to atmospheres, multiply the pressure by the following conversion ratio: 0.000009869 atmospheres/pascal.
Since one pascal is equal to 0.000009869 atmospheres, you can use this simple formula to convert:
The pressure in atmospheres is equal to the pressure in pascals multiplied by 0.000009869.
For example, here's how to convert 5 pascals to atmospheres using the formula above.
How Many Atmospheres Are in a Pascal?
There are 0.000009869 atmospheres in a pascal, which is why we use this value in the formula above.
Our pascal to standard atmosphere calculator automatically converts your pressure measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.
Pascals and atmospheres are both units used to measure pressure. Keep reading to learn more about each unit.
What Is a Pascal?
SI derived unit of pressure equal to 1 Newton per square meter (N/m²). It serves as a primary reference unit for measuring pressure across scientific and practical applications. [1]
The pascal is classified as an International System of Units (SI) unit of pressure. Pascals can be abbreviated as Pa; for example, 1 pascal can be written as 1 Pa.
As the primary coherent reference unit for pressure in this category, all other pressure units are mathematically anchored to the pascal (Pa).
In practice, pascals (Pa) are widely used across standard pressure applications within International System of Units (SI) workflows, engineering documentation, and technical data sheets.
What Is a Standard Atmosphere?
A standard atmosphere is a unit of pressure equal to 101,325 pascals (Pa), the base unit for pressure. Standard sea-level atmospheric pressure defined as 101,325 Pascals. [2]
The standard atmosphere is classified as a standard unit of pressure. Atmospheres can be abbreviated as atm; for example, 1 standard atmosphere can be written as 1 atm.
When working with atmospheres (atm) in formulas or technical specifications, always verify whether your target system uses SI metric, US customary, or British imperial standards.
In practice, atmospheres (atm) are widely used across large-scale industrial, bulk, and macro-level pressure specifications within international standard workflows, engineering documentation, and technical data sheets.
When converting pressure between pascals (Pa) and atmospheres (atm), keep full floating-point precision (1 Pa = 0.000009869 atm; 1 atm = 101,325 Pa) during intermediate calculations and round only the final standard atmosphere figure to match your instrument tolerance.
More Pascal & Standard Atmosphere Conversions
Need to calculate in the opposite direction? Use our atmospheres to pascals calculator to switch your starting unit immediately. You can also explore related tools such as converting atmospheres to pascals, converting bars to atmospheres, or converting torr to atmospheres.
Convert from Pascals
Frequently Asked Questions
References
- [1]NIST SP 811 StandardNIST SP 811 (NIST SP 811 App. B.9 (Pressure & Stress))·Pressure Metrology Standard — Pascals (Pa) to Atmospheres (atm)
- [2]NIST CUU SpecificationNIST CUU (Derived SI Unit: Pascal (Pa))·Unit Specifications: Pascal (Pa) & Standard Atmosphere (atm)
- [3]BIPM ReferenceBIPM (SI Brochure (9th Ed.) — Mechanics)·Conversion Factors & Mathematical Basis (Pa to atm)