Tyre Pressure Guide
Tyre pressure for the car you actually drive
British and European stickers print bar; garage hoses still shout PSI. This register keeps both, adds kPa, and splits front from rear so a Ford Mondeo page is not a copy of a Transit.
4,817 models across 286 brands. Each model has eight charts: overview, PSI, bar, kPa, front, rear, recommended, and cold.
Convert bar, PSI and kPa
European placards lead with bar. Use this before you trust a 2.3 that someone read as twenty-three.
Bar · PSI · kPa
1 bar ≈ 14.5 psi · 1 psi ≈ 6.89 kPa. The vehicle placard still wins.
Eight URLs per model
Example for a Ford Mondeo:
Popular charts
Open the PSI page, then jump bar, front or rear without leaving the model.
Ford Mondeo
PSI · bar · front · rear
Ford Focus
PSI · bar · front · rear
Ford Fiesta
PSI · bar · front · rear
Ford Kuga
PSI · bar · front · rear
Volkswagen Golf
PSI · bar · front · rear
Volkswagen Passat
PSI · bar · front · rear
BMW 320
PSI · bar · front · rear
Honda Civic
PSI · bar · front · rear
Toyota Corolla
PSI · bar · front · rear
Toyota RAV4
PSI · bar · front · rear
Nissan Qashqai
PSI · bar · front · rear
Hyundai Tucson
PSI · bar · front · rear
Kia Sportage
PSI · bar · front · rear
Tesla Model 3
PSI · bar · front · rear
Mazda CX-5
PSI · bar · front · rear
Land Rover Discovery
PSI · bar · front · rear
Placard, not sidewall
The moulded number is a maximum for the carcass. Operating pressure is the door-pillar label, measured cold.
Bar is not PSI ÷ 10
2.4 bar is about 35 psi. 2.4 psi would leave a Mondeo on the rim. Convert, then set.
Front is not always rear
Vans, estates and some performance cars split the axles. Dedicated front and rear pages exist for that reason.
Handbook
Original explainers, written once — not spun from the car catalogue.
What tyre pressure actually is
Tyre pressure is the gas load that carries the car. Why the door-pillar placard beats the sidewall, in bar and PSI.
Bar versus PSI
How UK and European placards use bar while garage hoses still shout PSI — and why 2.3 is not twenty-three.
How to read the tyre placard
Where the yellow or white door-pillar sticker lives, what the two columns mean, and why laden figures exist.
Sidewall maximum versus recommended pressure
The number moulded on the tyre is a carcass limit. Recommended operating pressure is the vehicle placard.
How to check tyre pressure
A cold-gauge routine that does not depend on a supermarket air-and-water machine.
Cold tyre pressure
What “cold” means in a UK climate, why the M6 reading is the wrong one to set, and how frost fools TPMS.
How temperature changes tyre pressure
About 1 psi per 5–6 °C. Why a January frost lights the lamp, and why you must not bleed a July afternoon.
What under-inflation does
Low pressure builds heat in the shoulders, raises rolling resistance, and is the usual path to a belt separation.
Risks of over-inflating tyres
Too much pressure shrinks the contact patch, wears the centre rib, and turns potholes into liner bruises.