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Kilopascals to Atmospheres (kPa to atm) Converter

1 kilopascal (kPa) = 0.00986923 atmospheres (atm). To convert kilopascals to atmospheres, multiply by 0.00986923: 25 kPa × 0.00986923 = 0.246731 atm.

1 kPa = 0.0098692327 atm
Convert the other way: Atmospheres to Kilopascals

Quick facts

How to convert kilopascals to atmospheres

  1. Take the value in kilopascals.
  2. Multiply it by 0.00986923 (the number of atmospheres in one kilopascal).
  3. Round the result to the precision you need.
atm = kPa × 0.00986923

Worked example: 25 kPa × 0.00986923 = 0.246731 atm.

To convert atmospheres back to kilopascals, multiply by 101.325, or divide by 0.00986923.

Source: NIST SP 811 (2008), Appendix B.

Kilopascals to Atmospheres conversion table

Kilopascals to Atmospheres conversion table
Kilopascals [kPa]Atmospheres [atm]
0.01 kPa0.0000986923 atm
0.1 kPa0.0009869233 atm
1 kPa0.0098692327 atm
2 kPa0.0197384653 atm
3 kPa0.029607698 atm
5 kPa0.0493461633 atm
10 kPa0.0986923267 atm
20 kPa0.1973846533 atm
50 kPa0.4934616334 atm
100 kPa0.9869232667 atm
1000 kPa9.8692326672 atm

kPa to atm chart from 1 to 100

Atmospheres to Kilopascals conversion table

Atmospheres to Kilopascals conversion table
Atmospheres [atm]Kilopascals [kPa]
0.01 atm1.01325 kPa
0.1 atm10.1325 kPa
1 atm101.325 kPa
2 atm202.65 kPa
3 atm303.975 kPa
5 atm506.625 kPa
10 atm1013.25 kPa
20 atm2026.5 kPa
50 atm5066.25 kPa
100 atm10132.5 kPa
1000 atm101325 kPa

Kilopascals vs Atmospheres

KilopascalAtmosphere
SymbolkPaatm
Equals1 kPa = 0.00986923 atm1 atm = 101.325 kPa

What is a kilopascal?

Equal to 1,000 pascals. Used for tire pressure and weather pressure outside the US.

What is an atmosphere?

Defined as standard atmospheric pressure at sea level. Used as a reference pressure in science and diving.

Frequently asked questions

How many atmospheres are in a kilopascal?

There are 0.00986923 atmospheres in 1 kilopascal (1 kPa = 0.0098692327 atm).

How many kilopascals are in an atmosphere?

There are 101.325 kilopascals in 1 atmosphere (1 atm = 101.325 kPa).

How do I convert kilopascals to atmospheres?

Multiply the number of kilopascals by 0.00986923. For example, 10 kPa × 0.00986923 = 0.0986923 atm. To convert back, multiply by 101.325.

What is 10 kPa in atmospheres?

10 kPa = 0.0986923 atm.

What is 100 kPa in atmospheres?

100 kPa = 0.986923 atm.

Is the conversion exact?

Yes. The factor comes from the official definitions of both units (NIST SP 811 (2008), Appendix B). Results are shown to up to 10 decimal places; round them to suit your purpose.

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Reviewed by

Dr. Muhammad Amjad Khadim PhD Mathematics

Dr. Muhammad Amjad Khadim holds a PhD in Mathematics. He writes and reviews the guides on pakmath.com and checks every formula, conversion factor and worked example against published standards and official guidance before it goes live. Spotted an error? Tell us and it will be corrected.

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First published 28 October 2026 · Last reviewed 5 November 2026