Unit converter
Kilopascals to Pounds Per Square Inch Converter
Convert a pressure in kilopascals to pounds per square inch. The kilopascal is a metric unit equal to exactly 1000 pascals, and because one psi is 6894.757293168361 pascals, a single kilopascal comes to about 0.1450377377 psi. Type any kPa reading and the tool shows the matching psi value, with a quick table for the numbers people look up most. Many tyre placards and pressure sensors report kPa, so drivers translate to psi to match an American gauge, and the same swap helps with bicycle tyres, scuba fills, hydraulic gear, and weather pressure figures.
1 kilopascal = 0.145038 pounds per square inch
Common kilopascals to pounds per square inch values
| Kilopascals | Pounds per square inch |
|---|---|
| 1 kPa | 0.145038 psi |
| 2 kPa | 0.290075 psi |
| 5 kPa | 0.725189 psi |
| 10 kPa | 1.4504 psi |
| 20 kPa | 2.9008 psi |
| 50 kPa | 7.2519 psi |
| 100 kPa | 14.5038 psi |
How to convert
- Take the pressure listed in kilopascals.
- Multiply by 0.1450377377, the count of psi in one kilopascal.
- The figure you get is the same pressure in psi.
- For the opposite direction, divide a psi reading by 0.1450377377 to arrive at kilopascals.
- A rough mental version divides the kPa figure by about 6.9: 207 kPa is close to 30 psi.
psi = kilopascals × 0.1450377377
A kilopascal is 1000 pascals and a psi is 6894.757293168361 pascals, so dividing the first by the second gives the ratio 0.1450377377. Multiplying a kPa reading by that ratio gives psi, and dividing psi by it returns kPa. The pascal sits beneath both, so the swap is a single fixed multiplication.
- kPa
- the pressure in kilopascals you begin with
- 0.1450377377
- psi in one kilopascal (1000 Pa divided by 6894.757293168361 Pa)
Worked example
A tyre placard calling for 220 kPa is 220 times 0.1450377377, about 31.91 psi. A spare-tyre figure of 420 kPa converts to roughly 60.92 psi, the kind of higher pressure listed for a temporary space-saver wheel.
Key facts
- One kilopascal is about 0.1450377377 psi; 100 kPa equals one bar.
- A tyre at 230 kPa reads close to 33.36 psi.
- Standard sea-level pressure of about 101.3 kPa is roughly 14.7 psi.
- A scuba cylinder at 20000 kPa, or 200 bar, is near 2900.75 psi.
Tips
- When a placard shows kPa but your pump reads psi, multiply by about 0.145 to fix the target.
- Remember 100 kPa is one bar, so a kPa figure divided by 100 gives a quick bar value too.
- Keep the full decimals until the last step, then round the psi answer, so small slips do not accumulate.
Frequently asked questions
How many psi in 1 kPa?+
One kilopascal is about 0.1450377377 psi, because a kilopascal is 1000 pascals and a psi is 6894.757293168361 pascals.
How many psi in 1 bar?+
One bar, which is 100 kPa, equals about 14.503773773 psi. So 100 kPa and 14.5 psi describe the same pressure.
What is 250 kPa in psi?+
Around 36.26 psi, a pressure you might see for a loaded estate car or a small van.
Why is my tyre label in kPa?+
Many manufacturers print the metric kPa value, sometimes next to bar, while imperial gauges read psi, so converting lines the two up.
Things to watch
- Tyre and cylinder gauges report gauge pressure, the part above ambient air, not absolute pressure, so a sensor reading absolute kPa will sit about 100 kPa higher than the gauge.
Sources
Last updated: 2026-01-01
Conversions use internationally defined factors. Provided for general use; verify critical measurements independently.