Convert Atmospheres to Pascals
Convert Atmospheres to Pascals instantly. 1 Atmosphere (atm) equals 101,325 Pascals (Pa).
Atmospheres to Pascals conversion table
| Atmospheres (atm) | Pascals (Pa) |
|---|---|
| 1 atm | 101,325 Pa |
| 2 atm | 202,650 Pa |
| 3 atm | 303,975 Pa |
| 5 atm | 506,625 Pa |
| 10 atm | 1,013,250 Pa |
| 20 atm | 2,026,500 Pa |
| 50 atm | 5,066,250 Pa |
| 100 atm | 10,132,500 Pa |
| 500 atm | 50,662,500 Pa |
| 1,000 atm | 101,325,000 Pa |
1 Atmosphere = 101,325 Pascals · multiply Atmospheres by 101,325
About converting Atmospheres to Pascals
Atmospheres (atm) and Pascals (Pa) are both units of pressure, so converting between them is a single multiplication: multiply your Atmospheres figure by 101,325. Ten Atmospheres comes to 1,013,250 Pascals, and a hundred works out at 10,132,500 Pascals.
Rule of thumb: going from Atmospheres to Pascals multiplies, so the figure always grows — one Atmosphere is already 101,325 Pascals. If your answer came out smaller, you have the conversion the wrong way round.
What is an Atmosphere?
The standard atmosphere is a defined reference rather than a working unit: a figure fixed by agreement at roughly what the air presses at sea level on an ordinary day. Nobody sets a gauge to it. Instead it is the yardstick other pressures are described against — divers count depth in atmospheres, chemists specify reactions at one atmosphere, and test standards quote pressures as multiples of it. Because it is a defined number rather than a measured one, the real pressure outside almost never equals exactly one atmosphere; it wanders with the weather, which is what a barometer is telling you.
What is a Pascal?
The pascal is the SI unit of pressure: one newton spread over one square metre. It is named after Blaise Pascal, who established that air pressure falls with altitude by having a barometer carried up a mountain. The awkward thing about the unit is its scale — a single pascal is a very small pressure indeed, so honest real-world figures come out enormous, atmospheric pressure alone being about 101,325 of them. That is why hardly anyone works in bare pascals: engineers reach for kilopascals, meteorologists for hectopascals, and industry for the bar.
To put both in perspective: the pressure 10 metres underwater is about 2 atmospheres, while sea-level air pressure is about 101,325 pascals.
The converter above updates as you type, and the table lists common values for quick reference. Need the opposite direction? Use the Pascals to Atmospheres converter, or browse all Pressure converters.
Frequently asked questions
How many Pascals are in one Atmosphere?
There are 101,325 Pascals in one Atmosphere.
How do I convert Atmospheres to Pascals?
Multiply the number of Atmospheres by 101,325. For example, 10 Atmospheres = 1,013,250 Pascals.
What is 100 Atmospheres in Pascals?
100 Atmospheres is equal to 10,132,500 Pascals.
How do I convert Pascals to Atmospheres?
Multiply the Pascals value by 0.000009869 (or divide by 101,325).
Is this Atmospheres to Pascals conversion exact?
Yes, exactly. Both units are fixed against the same base by definition, and 1 Atmosphere = 101,325 Pascals is the complete value — nothing is rounded away.
What is an Atmosphere?
The standard atmosphere is a defined reference rather than a working unit: a figure fixed by agreement at roughly what the air presses at sea level on an ordinary day. Nobody sets a gauge to it. Instead it is the yardstick other pressures are described against — divers count depth in atmospheres, chemists specify reactions at one atmosphere, and test standards quote pressures as multiples of it. Because it is a defined number rather than a measured one, the real pressure outside almost never equals exactly one atmosphere; it wanders with the weather, which is what a barometer is telling you.
What is a Pascal?
The pascal is the SI unit of pressure: one newton spread over one square metre. It is named after Blaise Pascal, who established that air pressure falls with altitude by having a barometer carried up a mountain. The awkward thing about the unit is its scale — a single pascal is a very small pressure indeed, so honest real-world figures come out enormous, atmospheric pressure alone being about 101,325 of them. That is why hardly anyone works in bare pascals: engineers reach for kilopascals, meteorologists for hectopascals, and industry for the bar.