Pascal to AtmosphereConverter
Instantly convert Pascal (Pa) to Atmosphere (atm). Free, accurate, and easy to use.
How to Convert Pascal to Atmosphere
To convert Pascal (Pa) to Atmosphere (atm), multiply your value by 0.00000987.
Example: 5 Pa × 0.00000987 = 0.00004935 atm
What is a Pascal?
The Pascal (Pa) is the SI derived unit of pressure, equal to one Newton per square meter (N/m²). It was named after French mathematician and physicist Blaise Pascal, who formulated key principles of fluid pressure in the 17th century. Because one Pascal is very small, kilopascals (kPa) and megapascals (MPa) are used in most practical contexts. Standard atmospheric pressure at sea level equals 101,325 Pascals.
What is a Atmosphere?
The standard atmosphere (atm) is defined exactly as 101,325 Pascals and represents average sea-level air pressure on Earth. It is the standard reference pressure in chemistry for gas laws (STP), and in diving to express depth pressure. Every 10 meters of seawater adds approximately 1 atm of pressure. The atmospheric pressure on Mars is only about 0.006 atm.
Pascal to Atmosphere Conversion Table
| Pascal (Pa) | Atmosphere (atm) |
|---|---|
| 0.001 Pa | 9.8692e-9 atm |
| 0.01 Pa | 9.8692e-8 atm |
| 0.1 Pa | 9.8692e-7 atm |
| 0.5 Pa | 0.00000493 atm |
| 1 Pa | 0.00000987 atm |
| 2 Pa | 0.00001974 atm |
| 5 Pa | 0.00004935 atm |
| 10 Pa | 0.00009869 atm |
| 20 Pa | 0.00019738 atm |
| 50 Pa | 0.00049346 atm |
| 100 Pa | 0.00098692 atm |
| 200 Pa | 0.00197385 atm |
| 500 Pa | 0.00493462 atm |
| 1000 Pa | 0.00986923 atm |
| 5000 Pa | 0.04934616 atm |
| 10000 Pa | 0.09869233 atm |
| 50000 Pa | 0.49346163 atm |
| 100000 Pa | 0.98692327 atm |
| 1000000 Pa | 9.86923267 atm |
| 1000000000 Pa | 9869.23266716 atm |
Frequently Asked Questions
How do I convert Pascal to Atmosphere?
Multiply the Pascal value by 0.00000987. Formula: atm = Pa × 0.00000987. Example: 10 Pa = 0.00009869 atm.
How many Atmosphere are in one Pascal?
One Pascal (Pa) equals 0.00000987 Atmosphere (atm).
How many Pascal are in one Atmosphere?
One Atmosphere (atm) equals 101325 Pascal (Pa).
What is the exact conversion factor from Pascal to Atmosphere?
The conversion factor is 0.00000987. Multiply any Pa value by this number to get atm. For the reverse, multiply by 101325.
How do I convert Atmosphere back to Pascal?
Divide by 0.00000987, or equivalently multiply by 101325. Formula: Pa = atm ÷ 0.00000987.
Is the Pascal-to-Atmosphere conversion internationally standardized?
Yes. Both units are defined by international standards (SI or the international yard/pound agreement), so the conversion factor 0.00000987 is exact and universally agreed upon.