Best 215/40 R18 Tires. Rims & Conversion Info
Best 215/40 R18 All-Season Tires
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
Continental ExtremeContact DWS 06
Overall: 77% Dry: 90%Wet: 90%Snow: 77%Comfort: 85%Wear: 79%Check on Amazon
Bridgestone Potenza RE980AS
Overall: 71% Dry: 90%Wet: 86%Snow: 62%Comfort: 82%Wear: 78%Check on Amazon
Kumho Ecsta PA51
Overall: 70% Dry: 83.3%Wet: 60%Snow: 60%Comfort: 60%Buy again: 60%Check on Amazon
Kumho Solus KH25
Overall: 48.4% Dry: 77.3%Wet: 67%Snow: 29%Comfort: 71.5%Wear: 32.5%Buy again: 60%Check on AmazonBest 215/40 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
Bridgestone Potenza RE-71R
Overall: 88% Dry: 96%Wet: 76%Comfort: 70%Wear: 62%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 Amazon
Yokohama ADVAN Sport V105
Overall: 84.3% Dry: 87.7%Wet: 84.5%Comfort: 81%Wear: 77%Buy again: 84.5%Check on Amazon
General G-MAX RS
Overall: 84% Dry: 91%Wet: 87%Comfort: 86%Wear: 84%Check on Amazon
Michelin Pilot Sport 4
Overall: 83.5% Dry: 86.7%Wet: 89%Comfort: 80.5%Wear: 75%Buy again: 80%Check on Amazon215/40 R18 in inches
215/40 R18 tires' overall diameter is 24.8 inches, tire width is 8.5 inches, the tire can be mounted on 18 inches wheel and the circumference is 77.9". With that parameters, we can calculate that it will take approximately 813.4 revolutions per mile.
So the closest metric tire size of 215/40R18 existing size in inches is 33x10.50R18, which is 33.06% taller and 23.53% wider.
You can use our handy tire size calculator to compare 215/40 R18 vs 33x10.50R18.
Popular comparisons with this size
What rims fit 215/40 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 215/40 R18 tires:
Rim diameter x rim width
- 18x7
- 18x7.5
- 18x8
- 18x8.5
215/40 R18 – what does it mean?
| Parameter | Meaning |
|---|---|
| 215 | The first number shows that the tire has a section width of 215 mm or approximately 8.5 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 ~ 86mm |
| 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.