Atmosphere to Kilopascal Converter
One Atmosphere equals 101.325 Kilopascal (1 atm = 101.325 kPa). Multiply a Atmosphere value by 101.325 to get the equivalent in Kilopascal. Use the calculator above for instant results, or follow the formula, worked examples, and reference table below.
Formula
kPa = atm × 101.325
Multiply the Atmosphere value by 101.325 to get the equivalent value in Kilopascal.
Example Conversions
1 Atmosphere (atm)
101.325 Kilopascal (kPa)
5 Atmosphere (atm)
506.625 Kilopascal (kPa)
10 Atmosphere (atm)
1013.25 Kilopascal (kPa)
25 Atmosphere (atm)
2533.125 Kilopascal (kPa)
100 Atmosphere (atm)
10132.5 Kilopascal (kPa)
Conversion Table
| Atmosphere (atm) | Kilopascal (kPa) |
|---|---|
| 0.1 | 10.1325 |
| 0.5 | 50.6625 |
| 1 | 101.325 |
| 2 | 202.65 |
| 5 | 506.625 |
| 10 | 1013.25 |
| 25 | 2533.125 |
| 50 | 5066.25 |
| 100 | 10132.5 |
| 250 | 25331.25 |
| 500 | 50662.5 |
| 1000 | 101325 |
How to Convert Manually
Use these steps to convert Atmosphere values to Kilopascal without the calculator.
- Write down the value in Atmosphere (atm) that you want to convert.
- Multiply that value by 101.325.
- For example, 10 Atmosphere × 101.325 = 1013.25 Kilopascal.
- Label the result as Kilopascal (kPa).
Relative Size Comparison
This chart shows the visual difference in size between exactly one Atmosphere and one Kilopascal.
About Atmosphere and Kilopascal
The standard atmosphere is defined as exactly 101,325 pascals — mean sea-level air pressure. Chemistry reference conditions and diving depth calculations use atmospheres. The kilopascal is 1,000 pascals. Tire pressures in metric countries, weather systems, and engineering specs commonly use kilopascals. One Atmosphere equals 101.325 Kilopascal (1 atm = 101.325 kPa). Atmosphere to Kilopascal conversion comes up most often in chemistry reference conditions and in diving depth pressure, typically when figures need restating for tire pressure in metric countries.
Precision and Rounding: Several pressure factors are exact by definition (1 atm = 101,325 Pa; 1 bar = 100,000 Pa) while others, like psi and mmHg, are derived and carry long decimals. Tire and weather readings tolerate whole-number rounding; calibration, medicine, and process engineering need the full factor before rounding.
Conversion factors per NIST Special Publication 811 and the BIPM SI Brochure (9th edition) (reference).
Worked Example
15 Atmosphere equals 1519.875 Kilopascal.
15 atm × 101.325 = 1519.875 kPa
FAQ
How do I convert Atmosphere to Kilopascal?
Multiply the Atmosphere value by 101.325 to get the equivalent value in Kilopascal.
What is the formula for Atmosphere to Kilopascal?
The formula is kPa = atm × 101.325.
How many Kilopascal are in 1 Atmosphere?
1 Atmosphere equals 101.325 Kilopascal.
Can I convert Kilopascal back to Atmosphere?
Yes. 1 Kilopascal equals 0.009869232667 Atmosphere, and the related converter can reverse the calculation.
What are common names for Atmosphere and Kilopascal?
Atmosphere is shown as atm and may also be searched as atmospheres, standard atmosphere. Kilopascal is shown as kPa and may also be searched as kilopascals, kpa.
Was this page helpful?
Let us know if this converter met your needs.