How to Check Tire PressureFind target. Check cold. Adjust safely.

Tools · How to Check Tire Pressure

PSI, kPa, and Bar Converter

Convert the pressure unit on your gauge to the unit on the vehicle label without changing the recommended value.

PSI ADJUSTERCold pressure reference tool
READY
TARGET - READINGAdd 4 PSITarget 35 PSI, current 31 PSI. Add air in short bursts.
Full calculatorFind targetTPMS light

Short answer

PSI, kPa, and bar describe the same pressure. Convert the reading so it matches the unit printed on the door label. Do not change the recommended number just because the gauge uses another scale.

A common error is treating 240 kPa as if it were a PSI target. Another is setting a European-bar pump to 2.4 when the label is 35 PSI without converting. Use this page to keep the physical pressure the same.

After conversion, still measure with a gauge and still inspect damage. Units are not a leak diagnosis.

Step-by-step

  1. 1Read the unit on the vehicle label.
  2. 2Read the unit on the gauge or pump.
  3. 3Convert so both sides match.
  4. 4Adjust air using the converted target.

Common mistakes

Mixing 2.4 bar with 24 PSI Those are not the same pressure.

Changing the target because the tool looks precise Precision is not a new recommendation.

Safety notes

A converted number is still only as good as the label you started from.

FAQ

Which unit should I keep? The one printed on your vehicle label.

Related next steps

Tire pressure calculatorCompare the door-label target with the gauge reading.Gas station pumpAdd air after you already know the target.Tire pressure lightCheck tires before you reset TPMS.Find the target PSIUse the door label, not the sidewall.