Home / Tire Tools / Tire Pressure Converter
Tire Pressure Converter
Convert a tire pressure reading between pounds per square inch (PSI), bar and kilopascals (kPa) — the three units you will see on door placards, pump gauges and dash displays.
Convert tire pressure
Enter a pressure and choose its unit. Values update instantly across PSI, bar and kPa.
Use the number printed on a gauge or your vehicle placard.
Converted
- PSI
- —
- bar
- —
- kPa
- —
Always confirm the correct pressure for your vehicle on the driver's door jamb placard or in the owner's manual. This converter only changes units — it does not recommend a target pressure.
How to use this tool
Enter the pressure you have in any one of the three fields. The converter fills in the other two immediately, so you never have to remember a multiplier.
- Find the pressure you want to convert. It is usually printed on the driver's door jamb placard or shown on a pump or gauge.
- Type the number into the matching unit field — PSI, bar or kPa.
- Read the converted value in the other fields. Round to the nearest whole PSI or tenth of a bar when inflating.
A placard lists 32 PSI. Entering 32 in the PSI field shows roughly 2.21 bar and 221 kPa, matching the figures printed on a European gauge or a digital inflator set to metric.
What the results mean
The result is the same pressure expressed in a different unit. PSI is standard in the United States; bar is common in Europe and on many gauge dials; kPa appears on some digital inflators and vehicle displays. Because gauges and placards round values, a small difference between units is normal and safe.
How it is calculated
The conversions are exact unit ratios: 1 bar equals 100 kPa and approximately 14.5038 PSI. To go from PSI to bar, divide by 14.5038; bar to PSI, multiply by 14.5038; kPa to PSI, divide by 6.89476. The tool applies these ratios and rounds only for display.
Important limitations
This converter changes units only — it does not tell you the correct pressure for your vehicle, which depends on the tire size, load and manufacturer's specification. Always set pressures to the cold figure on your vehicle placard and never reduce pressure below the manufacturer's recommendation to soften the ride; underinflation damages tires and hurts handling.