How do you convert PSI to kPa?

To convert PSI to kilopascals, multiply pressure in PSI by 6.894757. kPa = PSI × 6.894757. The calculator uses the precise constant 6.894757293168361 internally.

How do you convert kPa to PSI?

To convert kPa to PSI, divide pressure in kilopascals by 6.894757. PSI = kPa ÷ 6.894757. This tool switches direction automatically when you change the conversion mode.

What are typical PSI and kPa values for car tires?

Passenger car tires are commonly specified between about 30 and 35 PSI, which corresponds roughly to 207–241 kPa. Always use the manufacturer’s recommended pressure printed on the tire or vehicle door label.

PSI to kPa Converter – Pressure Unit Conversion

Pressure converter – PSI <→ kPa

Conversion direction

Exact constant: 1 PSI = 6.894757293168361 kPa.

Input value

PSI

Result

kPa

From PSI to kPa: the formula

PSI (pounds per square inch) is common in the US and in automotive contexts, while kilopascal (kPa) is an SI-derived unit used in engineering and on many technical datasheets.

Core formulas

1 PSI = 6.894757293168361 kPa

kPa = PSI × 6.894757293168361

PSI = kPa ÷ 6.894757293168361

Example: 32 PSI to kPa (car tire)

kPa = 32 × 6.894757 ≈ 220.6 kPa

Typical applications

Converting tire pressure between PSI and kPa.
Interpreting hydraulic and pneumatic specifications in different unit systems.
Converting legacy documentation (PSI) to SI-based units used in calculations.

FAQ

Is 1 bar the same as 100 kPa?

1 bar is defined as exactly 100 kPa. For rough comparisons: 1 bar ≈ 14.5038 PSI.

Can I use this for gauge and absolute pressure?

Yes. The converter operates on numerical values only. Whether a reading is gauge or absolute depends on your measurement reference, not on the unit itself.

What precision does the calculator use?

Internally it uses the full constant 6.894757293168361. Results are displayed with a reasonable number of decimal places or in scientific notation for very large or small values.