Choose a category below and convert between units quickly and accurately.
Result
1 Pascal = 9.8692e-6 Atmosphere
Pressure unit conversions for engineering, weather, and medical applications. Pascal, Bar, PSI, ATM and more.
| Pascal (Pa) | Atmosphere (atm) |
|---|---|
| 1 Pa | 9.8692e-6 atm |
| 2 Pa | 1.9738e-5 atm |
| 5 Pa | 4.9346e-5 atm |
| 10 Pa | 9.8692e-5 atm |
| 25 Pa | 2.4673e-4 atm |
| 50 Pa | 4.9346e-4 atm |
| 100 Pa | 9.8692e-4 atm |
| 250 Pa | 2.4673e-3 atm |
| 500 Pa | 4.9346e-3 atm |
| 1000 Pa | 9.8692e-3 atm |
Formula
Atmosphere = Pascal × 9.8692e-6
Worked Example
Example: 5 Pascal = 5 × 9.8692e-6 = 4.9346e-5 Atmosphere
To convert Pascal to Atmosphere, multiply the Pascal value by 9.8692e-6. This factor is derived from the ratio between the two units.
The pascal is the SI unit of pressure defined as one newton per square meter. It is used in science, engineering, and meteorology. Since one pascal is a very small pressure, kilopascals (kPa) and megapascals (MPa) are more commonly used in practice.
History
The pascal is named after French mathematician and physicist Blaise Pascal, who made important contributions to the study of fluid mechanics and pressure in the 17th century. It was adopted as the SI unit of pressure in 1971.
The standard atmosphere is a unit of pressure defined as 101,325 pascals. It represents the average atmospheric pressure at sea level and is used as a reference in chemistry, physics, and diving.
History
The concept of atmospheric pressure was first demonstrated by Evangelista Torricelli in 1643 using a mercury barometer. The standard atmosphere was defined at the value of 101,325 Pa, corresponding to the pressure supporting a 760 mm column of mercury.
Calculated using the latest NIST standards for physical constants and unit ratios.
No reload required. Get your results in real-time as you type or change units.
A responsive precision tool that fits in your pocket or dominates your desktop.
Each category converts first through a base unit, then into the destination unit. That keeps the math consistent across metric and imperial systems and makes it easier to explain how results are generated.
Use these tools for planning, study, and everyday reference. For regulated, medical, engineering, or procurement work, confirm requirements against the official standard or specification you are working from.