Convert psi, bar and kPa.
Read a worked example.
2.4 bar = 240 kPa ≈ 34.809 psi. These are three expressions of the same pressure, not three measurements. The example is not a recommendation for your vehicle.
NIST’s unit conversions support the conversion factors: 1 bar = 100 kPa and 1 psi ≈ 6.894757 kPa. Outputs round psi/bar to three decimals and kPa to two. Digits on screen do not establish the accuracy of a gauge.
A unit conversion is not a cold/hot conversion.
psi means pounds-force per square inch; kPa means kilopascals. Plain kg measures mass, not pressure. A label using kgf/cm² describes a different pressure unit, which this tool does not accept. Read the complete unit rather than treating kg as psi.
If the input came from a warm tire, the converted value is still a warm reading. This tool does not estimate tire-air temperature, pressure after driving, a leak rate or a vehicle-specific target.
For a temperature scenario use the separate temperature model and read its assumptions. For an actual check use the wheel-by-wheel record with your vehicle’s specifications and measured values.
Source & limitations
- NIST pressure conversions
Standard atmosphere and pressure-unit conversions.
Primary sources checked November 5, 2026. This is not a vehicle-specific inspection.
Calculations run in this page. No entries are uploaded or saved by this converter. Clearing or editing inputs removes the previous result so it cannot be mistaken for a fresh conversion.