Atmospheres to Kilopascals Converter

Convert atmospheres (atm) to kilopascals (kPa) instantly. Pressure conversions are used for tyre pressure (psi or bar), blood pressure readings in mmHg and weather maps in millibars.

Result

Kilopascals
101.325 kPa

How to use the atmospheres to kilopascals converter

  1. Enter the atmospheres (atm).
  2. The results update as you type, or press Calculate.
  3. Read the kilopascals first, then the supporting figures below it.

Formula

Kilopascals = atmospheres × 101.325

Worked example

For example, with these inputs:

the calculator returns:

Atmospheres to Kilopascals table

AtmospheresKilopascals
1 atm101.325 kPa
2 atm202.65 kPa
5 atm506.625 kPa
10 atm1,013.25 kPa
20 atm2,026.5 kPa
25 atm2,533.12 kPa
50 atm5,066.25 kPa
100 atm10,132.5 kPa
250 atm25,331.25 kPa
500 atm50,662.5 kPa
1,000 atm101,325 kPa

About this conversion

Pressure conversions are used for tyre pressure (psi or bar), blood pressure readings in mmHg and weather maps in millibars.

For everyday use, three or four significant figures are usually enough. Engineering, science and trade documents may need more, and rounding should happen only at the end of a calculation.

Many conversion factors are exact by definition. The inch has been defined as exactly 2.54 centimetres since 1959, and the pound as exactly 0.45359237 kilograms, so conversions involving them can be as precise as you need.

Frequently asked questions

How many kilopascals are in one atmosphere?

1 atm = 101.325 kPa.

How do I convert atm to kPa?

Kilopascals = atmospheres × 101.325.

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