This converter turns kilopascals into atmospheres instantly, using the exact factor 1 kilopascal = 0.009869232667 atmospheres. Type any number and the result updates as you go — nothing is sent to a server, so the arithmetic happens entirely in your browser.
The standard tyre-pressure unit in metric countries. Standard atmospheric pressure by definition — 101,325 pascals exactly.
Because the relationship is a simple proportion, one multiplication does the whole job. The table further down gives pre-computed values for the amounts people look up most often, and the result panel also reports the reverse conversion so you can check the figure both ways.
The formula
kilopascals- The amount you are converting, measured in kilopascals
0.009869232667- The exact number of atmospheres in one kilopascal
atmospheres- The converted result
How it works, step by step
- Enter the number of kilopascals you want to convert.
- The value is multiplied by 0.009869232667, the exact conversion factor.
- The result is displayed in atmospheres, rounded for readability.
- The unrounded value and the reverse conversion appear underneath so you can verify it.
Worked examples
Converting 5 kilopascals
Multiply 5 by 0.0098692327. That gives 0.049346 atmospheres. A quick sanity check: one kilopascal is smaller than one atmosphere, so the number should get smaller — and it does.
Converting 72 kilopascals
72 × 0.0098692327 = 0.710585 atmospheres. Working backwards, 0.710585 ÷ 0.0098692327 returns 72 kilopascals, which confirms the factor is applied the right way round.
How to read your score
Frequently asked questions
How many atmospheres are in one kilopascal?
Exactly 0.009869232667. Every conversion on this page is that single number multiplied by your input, so the result carries no rounding error beyond what is shown.
What is the formula to convert kilopascals to atmospheres?
Atmospheres = kilopascals × 0.009869232667. To reverse it, divide instead: kilopascals = atmospheres ÷ 0.009869232667, which is the same as multiplying by 101.325.
Is the kilopascal bigger than the atmosphere?
No. One kilopascal is only 0.00986923 of a atmosphere, so the atmosphere is the larger unit.
Why does my answer differ slightly from other kilopascals to atmospheres converters?
Most differences come from rounding the factor too early. This tool keeps full double precision through the calculation and only rounds at the final display step, and it also shows the unrounded value so you can see exactly where any difference appears.
What is a kilopascal?
The standard tyre-pressure unit in metric countries.
What is a atmosphere?
Standard atmospheric pressure by definition — 101,325 pascals exactly.
Kilopascals to atmospheres reference table
| Kilopascals | Atmospheres |
|---|---|
| 0.5 kPa | 0.004935 atm |
| 1 kPa | 0.009869 atm |
| 2 kPa | 0.019738 atm |
| 3 kPa | 0.029608 atm |
| 5 kPa | 0.049346 atm |
| 10 kPa | 0.098692 atm |
| 15 kPa | 0.148038 atm |
| 20 kPa | 0.197385 atm |
| 25 kPa | 0.246731 atm |
| 50 kPa | 0.493462 atm |
| 75 kPa | 0.740192 atm |
| 100 kPa | 0.986923 atm |
| 250 kPa | 2.4673 atm |
| 500 kPa | 4.9346 atm |
| 1000 kPa | 9.8692 atm |
Exact factor: 1 kilopascal = 0.009869232667 atmospheres. Values rounded for display.