Best 235/40 R18 Tires. Rims & Conversion Info
Best 235/40 R18 All-Season Tires
Bridgestone Turanza QuietTrack
Overall: 90.5% Dry: 90.3%Wet: 92%Snow: 88%Comfort: 97.5%Wear: 93%Buy again: 100%Check on Amazon
Continental ExtremeContact DWS 06 PLUS
Overall: 81.8% Dry: 87%Wet: 91%Snow: 86%Comfort: 84%Wear: 64%Buy again: 84%Check on Amazon
Michelin Pilot Sport All Season 4
Overall: 80.7% Dry: 84.3%Wet: 92%Snow: 71%Comfort: 80%Wear: 80%Buy again: 87%Check on Amazon
Yokohama ADVAN Sport A/S
Overall: 80% Dry: 88%Wet: 87%Snow: 70%Comfort: 88%Wear: 86%Check on Amazon
BFGoodrich g-Force COMP-2 A/S
Overall: 78% Dry: 92%Wet: 89%Snow: 71%Comfort: 80%Wear: 78%Check on Amazon
Pirelli P Zero All Season
Overall: 77.8% Dry: 100%Wet: 100%Snow: 100%Comfort: 100%Wear: 100%Buy again: 100%Check on Amazon
Goodyear Eagle Exhilarate
Overall: 77.7% Dry: 83.2%Wet: 86.5%Snow: 72%Comfort: 77.5%Wear: 83%Check on AmazonBest 235/40 R18 Street/Racetrack Tires
Toyo Proxes R888R
Overall: 86% Dry: 92%Wet: 54%Comfort: 67%Wear: 69%Check on AmazonBest 235/40 R18 Summer Tires
Nexen N FERA AU7
Overall: 91.4% Dry: 93.3%Wet: 90%Comfort: 90%Wear: 90%Buy again: 90%Check on Amazon
Goodyear Eagle F1 Supercar 3R
Overall: 89% Dry: 97%Wet: 75%Comfort: 90%Wear: 70%Buy again: 97%Check on Amazon
Bridgestone Potenza RE-71R
Overall: 88% Dry: 96%Wet: 76%Comfort: 70%Wear: 62%Check on Amazon
Goodyear Assurance MaxLife
Overall: 87% Dry: 92%Wet: 89%Snow: 81%Comfort: 88%Wear: 94%Check on Amazon
Michelin Pilot Sport PS2
Overall: 86.1% Dry: 91.5%Wet: 86.5%Comfort: 85%Wear: 76%Buy again: 88%Check on Amazon
Hankook Ventus S1 noble2
Overall: 85.6% Dry: 84.7%Wet: 87%Comfort: 90%Wear: 77%Buy again: 91%Check on Amazon
Continental ExtremeContact Sport
Overall: 85.6% Dry: 88.7%Wet: 83%Comfort: 87%Wear: 86.5%Buy again: 100%Check on AmazonBest 235/40 R18 Winter Tires
Michelin Pilot Alpin 5
Overall: 88.4% Dry: 90%Wet: 95%Snow: 88%Comfort: 83%Wear: 88%Buy again: 92%Check on Amazon
Michelin X-Ice Xi3
Overall: 85% Dry: 85%Wet: 88%Snow: 88%Comfort: 89%Wear: 90%Check on Amazon
Pirelli Winter Sottozero Serie II
Overall: 81% Dry: 87%Wet: 89%Snow: 81%Comfort: 88%Wear: 84%Check on Amazon
Yokohama iceGUARD iG52c
Overall: 76% Dry: 77%Wet: 78%Snow: 87%Comfort: 81%Wear: 83%Check on Amazon
Bridgestone Blizzak WS90
Overall: 75.1% Dry: 72.5%Wet: 84.5%Snow: 96.5%Comfort: 73.5%Wear: 76.5%Buy again: 100%Check on Amazon
Dunlop SP Winter Sport 3D
Overall: 74.3% Dry: 79%Wet: 83%Snow: 70%Comfort: 76%Wear: 75%Buy again: 78%Check on Amazon
Continental VikingContact 7
Overall: 65.6% Dry: 58.3%Wet: 50%Snow: 80%Comfort: 95%Wear: 50%Buy again: 70%Check on Amazon235/40 R18 in inches
235/40 R18 tires' overall diameter is 25.4 inches, tire width is 9.3 inches, the tire can be mounted on 18 inches wheel and the circumference is 79.8". With that parameters, we can calculate that it will take approximately 794 revolutions per mile.
So the closest metric tire size of 235/40R18 existing size in inches is 33x10.50R18, which is 29.92% taller and 12.9% wider.
You can use our handy tire size calculator to compare 235/40 R18 vs 33x10.50R18.
Popular comparisons with this size
What rims fit 235/40 R18 tires?
For each tire size there often there are several wheel sizes. You can't put too wide tires on narrow rims or vice versa. Here is what size of the wheels your vehicle needs for 235/40 R18 tires:
Rim diameter x rim width
- 18x8
- 18x8.25
- 18x9
- 18x8.5
- 18x10.5
- 18x7.5
- 18x10
- 18x11
- 18x12
235/40 R18 – what does it mean?
| Parameter | Meaning |
|---|---|
| 235 | The first number shows that the tire has a section width of 235 mm or approximately 9.3 inches. |
| 40 | The second number is the aspect ratio or sidewall height. In this case, it is 40%. It shows the height of the tire from the ground to the rim edge or the height of the tire's cross-section which is 40% of the width or ~ 94mm |
| R18 | The letter R means this tire is radial. Most of all tires nowadays are radial. The number is the tire diameter in inches. It means that the tire will fit 18-inch wheels |
If you want to know more about how to decipher information inscribed on your tires, including aspects such as the tire height, tire width, and the diameter of the wheel, this guide provides an in-depth look at how to read a tire sidewall. These measurements can reveal a wealth of information about your tire's specifications and suitability for your vehicle. Mastering these details will allow you to make informed decisions when buying or replacing your tires.