Converters guide
Pascals to PSI for tires, weather, and compressors
US tire shops speak PSI. European sidewalls often print kPa. Weather maps print hectopascals. All of them are pressure. Mixing a forecast 1013 hPa with a 220 kPa tire is how you invent a disaster that is only unit confusion.
Updated 2026-09-19
Tires
psi = pascals ÷ 6894.757. 220 kPa is 220,000 Pa ≈ 31.9 psi — a common passenger-car ballpark. Read the door sticker, not the max-psi on the tire.
Bar is 100,000 Pa. 2.2 bar is 32 psi-ish. Use the bar page if that is what the compressor face says.
Weather is not a tire
1013 hPa is 101,300 Pa ≈ 14.7 psi — one atmosphere, the air around you, not the air you pump into a wheel. Convert weather on the hectopascal page if you must; do not put 14.7 psi in a tire and call it “standard.”
Key takeaways
- Divide Pa by 6,894.76 to get PSI.
- kPa on a sidewall is the tire. hPa on a map is the atmosphere.
- Fill to the door placard, not the tire’s max.