Convert Kilopascals to Atmospheres
Convert Kilopascals to Atmospheres instantly. 1 Kilopascal (kPa) equals 0.009869 Atmospheres (atm).
Kilopascals to Atmospheres conversion table
| Kilopascals (kPa) | Atmospheres (atm) |
|---|---|
| 1 kPa | 0.009869 atm |
| 2 kPa | 0.01974 atm |
| 3 kPa | 0.02961 atm |
| 5 kPa | 0.04935 atm |
| 10 kPa | 0.09869 atm |
| 20 kPa | 0.1974 atm |
| 50 kPa | 0.4935 atm |
| 100 kPa | 0.9869 atm |
| 500 kPa | 4.9346 atm |
| 1,000 kPa | 9.8692 atm |
1 Kilopascal = 0.009869 Atmospheres · multiply Kilopascals by 0.009869
About converting Kilopascals to Atmospheres
Kilopascals (kPa) and Atmospheres (atm) are both units of pressure, so converting between them is a single multiplication: multiply your Kilopascals figure by 0.009869. Ten Kilopascals comes to 0.09869 Atmospheres, and a hundred works out at 0.9869 Atmospheres.
Rule of thumb: going from Kilopascals to Atmospheres divides, so the figure always shrinks — it takes about 101.325 Kilopascals to make a single Atmosphere. If your answer came out bigger, you have the conversion the wrong way round.
What is a Kilopascal?
The kilopascal is what the pascal becomes once it is scaled to human problems — a thousand of them, and suddenly the numbers are readable. It is the everyday metric pressure unit across much of the world: tyre pressures in Canada, Australia and New Zealand are posted in kPa, as are the ratings on hydraulics, refrigeration and engineering specifications. Its close relative the hectopascal, a hundred pascals, is what weather services use for air pressure — chosen because it is exactly the size of the millibar forecasters used before it, so every published chart stayed valid.
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.
To put both in perspective: a car tyre is inflated to roughly 220 kilopascals, while the pressure 10 metres underwater is about 2 atmospheres.
The converter above updates as you type, and the table lists common values for quick reference. Need the opposite direction? Use the Atmospheres to Kilopascals converter, or browse all Pressure converters.
Frequently asked questions
How many Atmospheres are in one Kilopascal?
There are 0.009869 Atmospheres in one Kilopascal.
How do I convert Kilopascals to Atmospheres?
Multiply the number of Kilopascals by 0.009869. For example, 10 Kilopascals = 0.09869 Atmospheres.
What is 100 Kilopascals in Atmospheres?
100 Kilopascals is equal to 0.9869 Atmospheres.
How do I convert Atmospheres to Kilopascals?
Multiply the Atmospheres value by 101.325 (or divide by 0.009869).
Is this Kilopascals to Atmospheres conversion exact?
The definition is exact — Kilopascals and Atmospheres are both fixed against the same base by international agreement — but the decimal shown here is rounded for readability, because the true ratio does not terminate. For engineering or scientific work, carry more decimal places than this page displays.
What is a Kilopascal?
The kilopascal is what the pascal becomes once it is scaled to human problems — a thousand of them, and suddenly the numbers are readable. It is the everyday metric pressure unit across much of the world: tyre pressures in Canada, Australia and New Zealand are posted in kPa, as are the ratings on hydraulics, refrigeration and engineering specifications. Its close relative the hectopascal, a hundred pascals, is what weather services use for air pressure — chosen because it is exactly the size of the millibar forecasters used before it, so every published chart stayed valid.
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.