4 Psi to KPa

4 psi ≈ 27.579 kPa

Calculation: kPa = 4 psi × 6.89476 ≈ 27.579 kPa

Psi to KPa Converter

Choose the type of measurement to convert
Select the source unit to convert from
Select the target unit to convert to
Enter a numeric value or fraction to convert
Sig. Figures:

How much pressure is 4 psi?

4.0 psi (27.6 kPa) is comparable to the thin air at extreme altitude, like the summit of Mount Everest.

What does 4 psi look like?

Illustration of high altitude atmospheric pressure
4.0 psi (27.6 kPa) is comparable to the thin air at extreme altitude, like the summit of Mount Everest.

How to Convert Psi to KPa

1 psi = 6.89476 kPa

KPa = Psi × 6.89476

Example: 4 psi × 6.89476 = 27.579 kPa

Reverse Conversion

To convert kPa back to psi:

  • Remember, 1 kPa equals 0.145038 psi.
  • To convert 27.579 kPa to psi, multiply 27.579 x 0.145038, resulting in 4 psi.

4 psi is also equal to:

  • 27579 pascal
  • 0.27579 bar
About these units

Psi: Imperial/US customary pressure unit equal to one pound-force per square inch.

KPa: SI-derived pressure unit equal to 1,000 pascals (10³ Pa).

Frequently Asked Questions

How much is 4 psi in kPa?

4 psi equals 27.579 kPa. This is calculated by multiplying 4 by the conversion factor 6.89476.

What does 4 psi look like in kPa?

4 psi (27.579 kPa) is a very low pressure — below normal tire inflation.

How do you calculate 4 psi to kPa?

Multiply 4 by the conversion factor 6.89476. The calculation is 4 × 6.89476 = 27.579 kPa. This factor is defined by international measurement standards.

Share This Calculation

4 psi = 27.579 kPa
4 psi = 27.579 kPa — conversion chart

Nearby Conversions

1 psi6.895 kPa 2 psi13.79 kPa 3 psi20.68 kPa 5 psi34.47 kPa 6 psi41.37 kPa 7 psi48.26 kPa 8 psi55.16 kPa 9 psi62.05 kPa 10 psi68.95 kPa 11 psi75.84 kPa 12 psi82.74 kPa 13 psi89.63 kPa 14 psi96.53 kPa

For general conversions between psi and kPa, see the psi to kPa converter.

Also convert Psi to:

Conversion factors verified against NIST, BIPM, ISO 80000-4 1 atm = 101 325 Pa by definition (BIPM). Last reviewed: March 2026
Adilson Fernandes By Adilson Fernandes
Tiago Fernandes Reviewed by Tiago Fernandes

All unit conversions on CoolConversion use conversion factors defined or documented by internationally recognised standards bodies (such as ISO and NIST), including both SI and non-SI units.