How to convert atmospheres to kilopascals
kPa = atm × 101.325Multiply the value in atmospheres by 101.325. To go the other way, multiply by 0.009869232667 (or divide by 101.325).
A standard atmosphere is larger than a kilopascal: one standard atmosphere contains 101.325 kilopascals.
Worked examples
- 1 standard atmosphere1 atm × 101.325 = 101.325 kPa
- 5 atmospheres5 atm × 101.325 = 506.625 kPa
- 10 atmospheres10 atm × 101.325 = 1,013.25 kPa
- 20 atmospheres20 atm × 101.325 = 2,026.5 kPa
- 100 atmospheres100 atm × 101.325 = 10,132.5 kPa
Atmospheres to kilopascals conversion table
Values are calculated by the conversion engine and rounded to 8 significant figures.
| Atmospheres (atm) | Kilopascals (kPa) |
|---|---|
| 0.1 atm | 10.1325 kPa |
| 0.25 atm | 25.33125 kPa |
| 0.5 atm | 50.6625 kPa |
| 1 atm | 101.325 kPa |
| 2 atm | 202.65 kPa |
| 3 atm | 303.975 kPa |
| 4 atm | 405.3 kPa |
| 5 atm | 506.625 kPa |
| 6 atm | 607.95 kPa |
| 7 atm | 709.275 kPa |
| 8 atm | 810.6 kPa |
| 9 atm | 911.925 kPa |
| 10 atm | 1,013.25 kPa |
| Atmospheres (atm) | Kilopascals (kPa) |
|---|---|
| 12 atm | 1,215.9 kPa |
| 15 atm | 1,519.875 kPa |
| 20 atm | 2,026.5 kPa |
| 25 atm | 2,533.125 kPa |
| 30 atm | 3,039.75 kPa |
| 40 atm | 4,053 kPa |
| 50 atm | 5,066.25 kPa |
| 75 atm | 7,599.375 kPa |
| 100 atm | 10,132.5 kPa |
| 250 atm | 25,331.25 kPa |
| 500 atm | 50,662.5 kPa |
| 1,000 atm | 101,325 kPa |
About the units
Standard atmosphere (atm)
Exactly 101,325 Pa — average sea-level air pressure.
Kilopascal (kPa)
One thousand pascals. Tire pressures outside the US are often given in kPa (220–250 kPa for a car). One kilopascal equals 1,000 pascals (Pa).
Frequently asked questions
How many kilopascals are in one standard atmosphere?
There are 101.325 kilopascals in one standard atmosphere, and this value is exact by definition.
How do I convert atmospheres to kilopascals?
Multiply the number of atmospheres by 101.325. For example, 10 atm × 101.325 = 1,013.25 kPa.
How many atmospheres are in one kilopascal?
One kilopascal equals 0.009869232667 atmospheres. That is the reverse factor, 1 ÷ 101.325.
What is 10 atmospheres in kilopascals?
10 atm = 1,013.25 kPa.
Is this atm to kPa 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.