Pressure conversion

Convert Standard atmosphere to Kilopascal

1 standard atmosphere (atm) equals 101.325 kilopascal (kPa). Enter any value below to convert from atm to kPa.

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1 atm = 101.325 kPa

All Pressure units

From 1 atm
UnitValue
Pascal Pa 101,325
Kilopascal kPa 101.325
Megapascal MPa 0.101325
Bar bar 1.01325
Millibar mbar 1,013.25
Standard atmosphere atm 1
Pound per square inch psi 14.6959487755
Torr Torr 760
Millimeter of mercury mmHg 759.9998917256
Inch of mercury inHg 29.9212524019
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Formula

atm to kPa conversion formula

Use this relationship for a direct conversion:

kPa = atm x 101.325

Worked example

2 atm = 202.65 kPa.

Conventional mercury-column units are not measurements adjusted for local temperature or gravity.

Quick reference

Standard atmosphere to Kilopascal table

Standard atmosphere (atm)Kilopascal (kPa)
0.011.01325
0.110.1325
1101.325
2202.65
5506.625
101,013.25
252,533.125
505,066.25
10010,132.5
1,000101,325

From unit

About the standard atmosphere

Exactly 101,325 pascals.

Symbol: atm

To unit

About the kilopascal

One thousand pascals.

Symbol: kPa

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Source

Conversion standard

Definitions are checked against NIST SP 811: Pressure units. Calculations use full internal precision before display rounding.

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Questions

atm to kPa FAQ

How do you convert standard atmosphere to kilopascal?

Use the formula kPa = atm x 101.325. 1 standard atmosphere (atm) equals 101.325 kilopascal (kPa).

Is the atm to kPa conversion exact?

Both unit definitions use exact factors. Only the displayed decimal may be rounded.