How to convert pascals to atmospheres
To convert pascals to atmospheres, multiply by 0.00000986923266716. Pressure conversions are used for tire inflation, weather, scuba diving, hydraulics and medical devices.

Pascal to Atmosphere conversion table
| Pascal (Pa) | Atmosphere (atm) |
|---|---|
| 0.1 Pa | 9.86923267e-7 atm |
| 0.5 Pa | 0.00000493461633358 atm |
| 1 Pa | 0.00000986923266716 atm |
| 2 Pa | 0.0000197384653343 atm |
| 3 Pa | 0.0000296076980015 atm |
| 4 Pa | 0.0000394769306686 atm |
| 5 Pa | 0.0000493461633358 atm |
| 10 Pa | 0.0000986923266716 atm |
| 20 Pa | 0.000197384653343 atm |
| 25 Pa | 0.000246730816679 atm |
| 50 Pa | 0.000493461633358 atm |
| 100 Pa | 0.000986923266716 atm |
| 500 Pa | 0.00493461633358 atm |
| 1,000 Pa | 0.00986923266716 atm |
About the units
Pascal (Pa)
The pascal is the SI unit of pressure, one newton per square meter.
Atmosphere (atm)
A standard atmosphere is defined as exactly 101,325 pascals.
How to use this converter
- Type the number of pascals (Pa) in the input box.
- The result in atmospheres appears instantly — no button needed.
- See the same value in every other pressure unit just below.
- Use “Swap units” to convert atmospheres back to pascals.
Tips for better results
- Double-check which system a unit belongs to (for example US vs UK gallons).
- Use the swap button to convert in the opposite direction instantly.
- Bookmark the conversions you use most — each pair has its own page.
Frequently asked questions
How many atmospheres are in one pascal?
One pascal equals 0.00000986923266716 atmospheres. 0.00000986923266716 is the exact factor used by this converter.
How do I convert pascals to atmospheres?
Multiply the value in pascals by 0.00000986923266716. To go the other way, multiply atmospheres by 101,325.
What is 10 Pa in atm?
10 Pa = 0.0000986923266716 atm. Also, 5 Pa = 0.0000493461633358 atm and 100 Pa = 0.000986923266716 atm.
What is the difference between a pascal and a atmosphere?
The pascal is the SI unit of pressure, one newton per square meter. A standard atmosphere is defined as exactly 101,325 pascals.
Is this tool free and private?
Yes — the Pascal to Atmosphere is completely free with no sign-up, and it runs entirely in your browser, so the values you enter are never uploaded to our servers.
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