Convert kPa to bar
Convert kPa to bar instantly. 1 kPa = 0.01 bar. Formula, worked examples and a quick reference table.
Last updated
One kilopascal equals 0.01 bars. To convert any number of kilopascals to bars, multiply by 0.01.
The converter above works in both directions and updates as you type. Below you will find the formula, a worked example and a reference table of common values.
Pressure conversions are dominated by one everyday task: inflating a tyre. The United States and the United Kingdom quote psi, most of Europe uses bar, Canada and Australia use kilopascals, and the figure on the door jamb may not match the unit on the gauge. Beyond tyres, the same conversions serve weather reporting, diving, and any engineering work where a specification and an instrument were made in different markets.
kPa to bar formula
To go the other way, use kilopascal = bar ÷ 0.01.
About these units
The kilopascal is 1,000 pascals. It is the standard pressure unit in Canada, Australia and most engineering work, including tyre pressures.
One bar is 100,000 pascals, very close to average atmospheric pressure at sea level — which is why it was chosen.
Kilopascal is also written kilopascals. Bar is also written bars.
Sources
kPa to bar conversion table
| Kilopascal | Bar |
|---|---|
| 1 kPa | 0.01 bar |
| 2 kPa | 0.02 bar |
| 3 kPa | 0.03 bar |
| 5 kPa | 0.05 bar |
| 10 kPa | 0.1 bar |
| 20 kPa | 0.2 bar |
| 25 kPa | 0.25 bar |
| 50 kPa | 0.5 bar |
| 100 kPa | 1 bar |
| 250 kPa | 2.5 bar |
| 500 kPa | 5 bar |
| 1,000 kPa | 10 bar |
Frequently asked questions
How many bars are in a kilopascal? +
There are 0.01 bars in one kilopascal.
What is 10 kPa in bar? +
10 kPa equals 0.1 bar. Multiply 10 by 0.01.
How do I convert bar back to kilopascal? +
Use kilopascal = bar ÷ 0.01. The converter above handles both directions, or see our dedicated bar to kPa page.
How accurate is this kilopascal to bar conversion? +
The factor used is 0.01, carried at full double precision. Where a unit has an exact legal definition the factor is exact rather than approximate. Rounding is applied only to the displayed result, so the answer is never a calculation done on an already-rounded number.
Is there a quick way to estimate kPa to bar in my head? +
Divide by 100. That matches the true factor of 0.01 exactly, so no adjustment is needed for a mental estimate.