UnitCon

Atmospheres to Kilopascals Converter

Convert atmospheres to kilopascals for scientific calculations, weather systems, and engineering specifications. The kilopascal is the SI-preferred pressure unit at everyday scales, while the atmosphere is a common reference in chemistry and physics.

Formula

Multiply atmospheres by 101.325 to get kilopascals. To reverse, divide kilopascals by 101.325 to get atmospheres.

Quick reference

Atmosphere (atm)Kilopascal (kPa)
0.550.6625
1101.325
1.5151.9875
2202.65
3303.975
5506.625
101,013.25
202,026.5
505,066.25
10010,132.5

About these units

Atmosphere

The standard atmosphere (1 atm = 101,325 Pa = 101.325 kPa) was codified in 1954. It represents mean sea-level pressure and is used as the reference pressure in gas laws, thermochemistry, and aviation.

Kilopascal

The kilopascal is the practical SI pressure unit for everyday scales. Atmospheric pressure (≈101 kPa), tire pressure (200-240 kPa), and blood pressure are all commonly expressed in kPa in metric countries.

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