How to convert pascals to atmospheres
atm = Pa × 0.000009869232667Because one standard atmosphere equals 101,325 pascals, you can also divide: atm = Pa ÷ 101,325.
A pascal is smaller than a standard atmosphere: it takes 101,325 pascals to make one standard atmosphere.
Worked examples
- 1 pascal1 Pa × 0.000009869232667 = 0.000009869232667 atm
- 5 pascals5 Pa × 0.000009869232667 = 0.00004934616334 atm
- 10 pascals10 Pa × 0.000009869232667 = 0.00009869232667 atm
- 20 pascals20 Pa × 0.000009869232667 = 0.0001973846533 atm
- 100 pascals100 Pa × 0.000009869232667 = 0.0009869232667 atm
Pascals to atmospheres conversion table
Values are calculated by the conversion engine and rounded to 8 significant figures.
| Pascals (Pa) | Atmospheres (atm) |
|---|---|
| 0.1 Pa | 9.8692327×10⁻⁷ atm |
| 0.25 Pa | 0.0000024673082 atm |
| 0.5 Pa | 0.0000049346163 atm |
| 1 Pa | 0.0000098692327 atm |
| 2 Pa | 0.000019738465 atm |
| 3 Pa | 0.000029607698 atm |
| 4 Pa | 0.000039476931 atm |
| 5 Pa | 0.000049346163 atm |
| 6 Pa | 0.000059215396 atm |
| 7 Pa | 0.000069084629 atm |
| 8 Pa | 0.000078953861 atm |
| 9 Pa | 0.000088823094 atm |
| 10 Pa | 0.000098692327 atm |
| Pascals (Pa) | Atmospheres (atm) |
|---|---|
| 12 Pa | 0.00011843079 atm |
| 15 Pa | 0.00014803849 atm |
| 20 Pa | 0.00019738465 atm |
| 25 Pa | 0.00024673082 atm |
| 30 Pa | 0.00029607698 atm |
| 40 Pa | 0.00039476931 atm |
| 50 Pa | 0.00049346163 atm |
| 75 Pa | 0.00074019245 atm |
| 100 Pa | 0.00098692327 atm |
| 250 Pa | 0.0024673082 atm |
| 500 Pa | 0.0049346163 atm |
| 1,000 Pa | 0.0098692327 atm |
About the units
Pascal (Pa)
One newton per square metre — a very small pressure. Atmospheric pressure is about 101,325 Pa.
Standard atmosphere (atm)
Exactly 101,325 Pa — average sea-level air pressure.
Frequently asked questions
How many atmospheres are in one pascal?
There are 0.000009869232667 atmospheres in one pascal, and this value is exact by definition.
How do I convert pascals to atmospheres?
Multiply the number of pascals by 0.000009869232667. For example, 10 Pa × 0.000009869232667 = 0.00009869232667 atm.
How many pascals are in one standard atmosphere?
One standard atmosphere equals 101,325 pascals. That is the reverse factor, 1 ÷ 0.000009869232667.
What is 10 pascals in atmospheres?
10 Pa = 0.00009869232667 atm.
Is this Pa to atm converter accurate?
Yes. Both units are defined exactly in terms of SI units, so the conversion factor is exact; results are shown to 12 significant figures by default and you can change precision in the converter. Calculations run in your browser using the same tested engine that generated this page.