PSI to kPa
Convert pound/inch² to kilopascal instantly — type a value and read the result, with the exact formula shown.
Reviewed by the CalcCafe editorial team · Last updated 1 July 2026 · How we test our tools
Example
1 psi = 6.894757 kPa, 5 psi = 34.47379 kPa, 10 psi = 68.94757 kPa.
Common conversions: pound/inch² to kilopascal
Quick reference for the psi → kPa values you are most likely to need, computed with the exact factor the converter above uses. It includes the specific values people most often look up (30 psi, 35 psi, 40 psi, 50 psi, 100 psi). See also the reverse converter: Kilopascal to Pound/inch².
| Pound/inch² (psi) | Kilopascal (kPa) |
|---|
| 1 psi | 6.8948 kPa |
| 2 psi | 13.7895 kPa |
| 3 psi | 20.6843 kPa |
| 5 psi | 34.4738 kPa |
| 10 psi | 68.9476 kPa |
| 15 psi | 103.4214 kPa |
| 20 psi | 137.8951 kPa |
| 25 psi | 172.3689 kPa |
| 30 psi | 206.8427 kPa |
| 32 psi | 220.6322 kPa |
| 33 psi | 227.527 kPa |
| 35 psi | 241.3165 kPa |
| 40 psi | 275.7903 kPa |
| 50 psi | 344.7379 kPa |
| 60 psi | 413.6854 kPa |
| 70 psi | 482.633 kPa |
| 75 psi | 517.1068 kPa |
| 80 psi | 551.5806 kPa |
| 90 psi | 620.5282 kPa |
| 100 psi | 689.4757 kPa |
| 150 psi | 1,034.21 kPa |
| 200 psi | 1,378.95 kPa |
| 250 psi | 1,723.69 kPa |
| 500 psi | 3,447.38 kPa |
| 1,000 psi | 6,894.76 kPa |
Kilopascal to Pound/inch²
| Kilopascal (kPa) | Pound/inch² (psi) |
|---|
| 1 kPa | 0.145038 psi |
| 5 kPa | 0.725189 psi |
| 10 kPa | 1.4504 psi |
| 50 kPa | 7.2519 psi |
| 100 kPa | 14.5038 psi |
How it works
Kilopascal = Pound/inch² × 6.894757. Every value is converted through a single pascal base unit using internationally defined conversion factors, so any from/to pair stays consistent.
Good to know
Converting psi to kilopascals is something you do most often when a gauge, manual, or spec sheet speaks one pressure language and your equipment speaks another. Tire placards on European cars list cold pressures in kPa or bar, while a US tire gauge reads in psi; the same gap shows up in HVAC charge tables, pneumatic tool ratings, scuba and medical gas regulators, and engineering datasheets that follow SI conventions.
The split is fundamentally one of measurement systems. The pound per square inch comes from the imperial/US-customary world, expressing force (pounds) over area (square inches). The kilopascal is purely metric: one pascal is one newton per square meter, and a kilopascal is 1,000 of those. Because both ultimately describe force over area, they convert with a single fixed factor — 1 psi equals 6.894757 kPa — derived from the exact definitions of the pound-force and the inch.
For mental math, the handy shortcut is that 1 psi is just under 7 kPa, so multiply by 7 and shave off a hair — 30 psi lands near 210 kPa (the exact figure is 206.8). Going the other way, kPa divided by 7 gives a quick psi estimate. A common real-world anchor: standard atmospheric pressure of about 14.7 psi equals roughly 101.3 kPa.
The biggest mistake is confusing gauge pressure with absolute pressure. Tire gauges and most psi readings are gauge pressure (psig, measured above atmosphere), but some scientific kPa values are absolute (kPaa). The 6.894757 factor only scales the number — it does not add or remove the ~101.3 kPa of atmospheric offset, so mixing gauge and absolute references can throw a result off by a full atmosphere.
Frequently asked questions
How do you convert pound/inch² to kilopascal?
Multiply the number of pound/inch²s by 6.894757 to get kilopascals. For example, 1 psi = 6.894757 kPa.
What is 1 pound/inch² in kilopascals?
1 pound/inch² equals 6.894757 kilopascals (1 psi = 6.894757 kPa).
How many pound/inch²s are in 1 kilopascal?
There are 0.1450377 pound/inch²s in 1 kilopascal.
Is this converter free and private?
Yes. It runs entirely in your browser, so your inputs never leave your device, there is no sign-up, and it works offline once loaded.
Are the conversions exact?
Conversions use internationally defined factors and are exact where the definitions are exact (for example, 1 inch = 2.54 cm). Displayed results are rounded for readability.
People also ask
What is 32 psi in kPa?
32 psi equals about 220.6 kPa (32 × 6.894757 = 220.63 kPa). That is a typical cold tire pressure for many passenger cars.
How many kPa is 35 psi for tires?
35 psi is approximately 241.3 kPa (35 × 6.894757). Many vehicle door placards round this to 240 kPa or 2.4 bar.
Is 100 kPa the same as 14.5 psi?
Yes, very nearly — 100 kPa equals about 14.5 psi (100 × 0.1450377 = 14.504 psi). Standard atmospheric pressure is slightly higher at about 101.3 kPa, or 14.7 psi.
What is 1 bar in psi and kPa?
1 bar equals 100 kPa exactly and about 14.5 psi. Since 1 psi is 6.894757 kPa, 1 bar is roughly 14.504 psi.
Why is 1 psi equal to 6.894757 kPa?
Because the pound-force and the inch are defined exactly in SI units, the conversion works out to 6,894.757 pascals (6.894757 kPa) per psi. The factor is fixed and does not change with temperature or location.
How do I convert kPa back to psi?
Multiply the kPa value by 0.1450377, or divide by 6.894757. For example, 250 kPa equals about 36.3 psi.
Is psi a measure of gauge or absolute pressure?
By default, everyday psi readings (like tire gauges) are gauge pressure, meaning pressure above the surrounding atmosphere. To get absolute pressure (psia), add about 14.7 psi, or in metric, add about 101.3 kPa.
What is 60 psi in kilopascals?
60 psi equals about 413.7 kPa (60 × 6.894757 = 413.69 kPa). This is a common pressure for bicycle road tires and some pressure washers.
What is 240 kPa in tyre pressure?
240 kPa is about 34.8 psi, since 240 ÷ 6.894757 = 34.81 psi. It is also exactly 2.4 bar, because 1 bar = 100 kPa. A cold tyre pressure around 240 kPa is a common placard value for many passenger cars, but always use the figure printed on your own vehicle's door jamb or manual.
Related calculators
Sources & references
These tools follow our methodology and provide educational estimates only — verify important figures with a qualified professional.