1 standard atmosphere [atm] = 101.325 kilopascal [kPa]
Example: 1 standard atmosphere [atm] equals 101.325 kilopascal [kPa].
Examples
1 standard atmosphere [atm] = 101.325 kilopascal [kPa]
2 standard atmosphere [atm] = 202.65 kilopascal [kPa]
5 standard atmosphere [atm] = 506.625 kilopascal [kPa]
10 standard atmosphere [atm] = 1013.25 kilopascal [kPa]
20 standard atmosphere [atm] = 2026.5 kilopascal [kPa]
25 standard atmosphere [atm] = 2533.125 kilopascal [kPa]
Practical Uses for atmosphere to kilopascal
quick homework checksshopping and product comparisonstravel planningprofessional estimatesDIY and household measurementsgeneral reference
Sources and Accuracy
Pressure conversions use pascal as the reference unit and include common engineering, weather, tire, and laboratory pressure units.
Displayed results are rounded for readability. The calculator keeps enough precision for everyday use and switches to scientific notation for very large or very small values. Last reviewed: 2026-05-21.
About These Units
standard atmosphere [atm]
Definition
The standard atmosphere is a pressure unit equal to 101,325 pascals.
History
Atmosphere was defined around average sea-level air pressure for reference calculations.
Current use
Atmospheres are used in chemistry, gas laws, diving references, and technical pressure comparisons.
kilopascal [kPa]
Definition
The kilopascal is a metric pressure unit equal to 1000 pascals.
History
The pascal is the SI derived pressure unit, and kilopascals are convenient for everyday pressure values.
Current use
Kilopascals are used for tire pressure, weather, engineering specifications, medical equipment, and HVAC documentation.
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How to Convert
Enter the value in the “From value” field.
Confirm the source unit is standard atmosphere [atm].