Formula
kPa to atm conversion formula
Use this relationship for a direct conversion:
Worked example
2 kPa = 0.0197384653 atm.
Conventional mercury-column units are not measurements adjusted for local temperature or gravity.
Pressure conversion
1 kilopascal (kPa) equals 0.009869232667 standard atmosphere (atm). Enter any value below to convert from kPa to atm.
Enter a value and choose units. Results update instantly.
1 kPa = 0.0098692327 atm
| Unit | Value |
|---|---|
| Pascal Pa | 1,000 |
| Kilopascal kPa | 1 |
| Megapascal MPa | 0.001 |
| Bar bar | 0.01 |
| Millibar mbar | 10 |
| Standard atmosphere atm | 0.0098692327 |
| Pound per square inch psi | 0.1450377377 |
| Torr Torr | 7.500616827 |
| Millimeter of mercury mmHg | 7.5006157585 |
| Inch of mercury inHg | 0.2952998016 |
Formula
Use this relationship for a direct conversion:
2 kPa = 0.0197384653 atm.
Conventional mercury-column units are not measurements adjusted for local temperature or gravity.
Quick reference
| Kilopascal (kPa) | Standard atmosphere (atm) |
|---|---|
| 0.01 | 0.0000986923 |
| 0.1 | 0.0009869233 |
| 1 | 0.0098692327 |
| 2 | 0.0197384653 |
| 5 | 0.0493461633 |
| 10 | 0.0986923267 |
| 25 | 0.2467308167 |
| 50 | 0.4934616334 |
| 100 | 0.9869232667 |
| 1,000 | 9.8692326672 |
From unit
One thousand pascals.
Symbol: kPa
To unit
Exactly 101,325 pascals.
Symbol: atm
Keep converting
Source
Definitions are checked against NIST SP 811: Pressure units. Calculations use full internal precision before display rounding.
View the complete pressure converterQuestions
Use the formula atm = kPa x 0.009869232667. 1 kilopascal (kPa) equals 0.009869232667 standard atmosphere (atm).
Both unit definitions use exact factors. Only the displayed decimal may be rounded.