Pressure
atmtokPa
Convert standard atmospheres (atm) to kilopascals (kPa).
Factor1 atm = 101.325 kPa
Converter
atm
Accepts numbers or expressions, e.g. 150 + 14.7
Result
kPa
Rendered to 6 significant figures.
Formula
Formula
kPa = atm × 101.325
Multiply any value in standard atmospheres by 101.325 to obtain the value in kilopascals.
Worked example
Convert 1 atm to kPa.
- 01Start with 1 atm.
- 02Multiply by the conversion factor: 1 × 101.325 = 101.325 kPa.
Result1 atm = 101.325 kPa
Conversion table
| atm | kPa |
|---|---|
| 1 | 101.33 |
| 2 | 202.65 |
| 5 | 506.63 |
| 10 | 1013.3 |
| 20 | 2026.5 |
| 50 | 5066.3 |
| 100 | 10133 |
| 200 | 20265 |
| 500 | 50663 |
| 1000 | 1.0133e+5 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from atm to kPa?
1 atm equals 101.325 kPa. To convert, multiply the value in standard atmospheres by 101.325.
How do I convert 1 atm to kPa?
1 atm = 101.325 kPa. For any value, multiply by 101.325.
How do I convert kPa back to atm?
Divide by the same factor — or equivalently, multiply by 0.009869233. So 1 kPa = 0.00986923 atm.
When would I need to convert standard atmosphere to kilopascal?
Pressure conversions between atm and kPa are common when working with mixed-vendor instrumentation, when piping codes use different units to process datasheets, or when converting field readings into SI for hydraulic calculations.
Is the conversion exact?
Yes. Both atm and kPa are defined by exact SI relationships, so the displayed factor is exact (any rounding shown is only for display).