235/40R18 Tires
Find out if 235/40R18 fits your vehicle. Check out 235/40R18 tire size specifications and suggested replacement sizes.
What are 235/40R18 dimensions?
235/40R18 tire has a section width of 9.3 inches, a rim diameter of 18 inches, a sidewall height of 3.7 inches, an overall diameter of 25.4 inches, and a circumference of 79.8 inches, making 794 revolutions per mile.

9.3"
25.4"


79.8"
18"
3.7"
794 Revs/Mile
Metric | Inches | |
---|---|---|
Overall Diameter | 645 mm | 25.4" |
Tread Width | 235 mm | 9.3" |
Aspect Ratio | 40 % | |
Rim Diameter | 457.2 mm | 18" |
Sidewall Height | 94 mm | 3.7" |
Circumference | 2025.3 mm | 79.8" |
Revolutions | 494 per km | 794 per mile |
What is 235/40R18 in inches?
235/40R18 in inches is equivalent to 25.4x9.3R18.
What are replacement tire sizes for 235/40R18?
Replacement tires have to be within 3% of the original tire's overall diameter to ensure safe drive and proper speedometer readings. Below is a list of similar tire sizes that are within optimal characteristics of the original 235/40R18 size.
What cars does 235/40R18 tire size fit?
There are 37 car models that use 235/40R18 as original equipment tire size. Select your vehicle model for more details.
- Acura TL Tire Size
- Alfa Romeo 4C Tire Size
- Audi A4 Tire Size
- Audi A4 Quattro Tire Size
- Audi A6 Quattro Tire Size
- Audi S4 Tire Size
- BMW 540i Tire Size
- Cadillac CT4 Tire Size
- Ferrari 512 M Tire Size
- Ferrari 512 TR Tire Size
- Ferrari F512M Tire Size
- Ford Focus Tire Size
- Honda Civic Tire Size
- Hyundai Elantra Tire Size
- Maserati Coupe Tire Size
- Maserati Spyder Tire Size
- Mercedes-Benz A35 AMG Tire Size
- Mercedes-Benz C63 AMG Tire Size
- Mercedes-Benz CLA250 Tire Size
- Mercedes-Benz CLA35 AMG Tire Size
- Mercedes-Benz CLA45 AMG Tire Size
- Mercedes-Benz E350 Tire Size
- Mercedes-Benz E400 Tire Size
- Mercedes-Benz E550 Tire Size
- Mercedes-Benz SLC43 AMG Tire Size
- Mercedes-Benz SLK55 AMG Tire Size
- Pontiac GTO Tire Size
- Porsche 911 Tire Size
- Porsche Boxster Tire Size
- Porsche Cayman Tire Size
- Volkswagen CC Tire Size
- Volkswagen Eos Tire Size
- Volkswagen Passat Tire Size
- Volvo C70 Tire Size
- Volvo S60 Tire Size
- Volvo S80 Tire Size
- Volvo V60 Tire Size