235/40R18 Passenger car tyres
Compare 81 Passenger car tyres in 235/40R18 (also written 235/40 R18 or 235 40 18) from 36 brands, priced from $73 to $510 each including GST. Tread types in this size include performance, touring, summer and semi-slick. Choose delivery to your address, or have them sent to a Tyroola fitting partner near you to be fitted and balanced.
What 235/40R18 means
A 235/40R18 tyre is 235 mm wide across the tread. The sidewall is 40% of that width, about 94 mm tall, and it fits a 18-inch rim. That puts the overall diameter at roughly 645 mm, or about 493 wheel revolutions per kilometre. The R stands for radial construction.
Load index and speed rating
Tyres listed in 235/40R18 carry load indexes from 91 (615 kg per tyre) to 95 (690 kg per tyre) and speed ratings H (210 km/h), V (240 km/h), W (270 km/h) and Y (300 km/h). Your vehicle's tyre placard, usually inside the driver's door frame, sets the minimum load index and speed rating. Replacements must match or exceed both.
Tread types in 235/40R18
Performance (44), Touring (14).
Brands in 235/40R18
The brands with the most 235/40R18 options are Yokohama (10), Pirelli (8), Michelin (7), Continental (5), Goodride (4), Kumho (4), BFGoodrich (3), Bridgestone (3).
Frequently asked questions
What does 235/40R18 mean?
It means a tyre 235 mm wide with a sidewall 40% of that width (about 94 mm), radial construction, for a 18-inch rim. The load index and speed rating follow the size on the sidewall, for example 235/40R18 91V.
How much are 235/40R18 tyres?
Right now 235/40R18 tyres range from $73 to $510 each including GST, depending on brand, tread type and load rating. A set of four starts from $292.
Which load index and speed rating do I need for 235/40R18?
Use the load index and speed rating on your vehicle's tyre placard as the minimum. A higher load index or speed rating is fine; a lower one is not. If your placard lists more than one size, use the ratings shown for the size you are buying.
Can I get 235/40R18 tyres fitted near me?
Yes. At checkout, choose a Tyroola fitting partner near you and the tyres are delivered there for fitting and balancing. You can also have them delivered to your own address.