285/35R18
Standard MetricFactory Specs, Physical Dimensions & Compatible Vehicle Applications
The 285/35R18 tire size features an overall diameter of 25.85 inches, a section width of 11.2 inches (285mm), and rotates 780 times per mile. It is a standard factory tire fitment on 62+ vehicle models including Mercedes-Benz SL500, Mercedes-Benz SL55.
Physical Dimensions & Specs
Overall Diameter
25.85"
656.6 mmSection Width
285 mm
11.22" wideSidewall Height
3.93"
99.8 mm (35% aspect)Revolutions / Mile
780
Circumference: 81.22"Rim Diameter
18"
Wheel sizeRecommended Rim Width
7.1" - 10"
Optimal rim width rangeWhere to Buy & Install 285/35R18 Tires
Looking for 285/35R18 tires? Skip hauling tires in your car—choose direct delivery to a local certified shop or doorstep delivery:
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Speedometer & Alternate Size Calculator
Testing an alternate size for your vehicle? Compare 285/35R18 against any proposed tire size below:
Visual Tire & Wheel Comparison
Speedometer Variance
| Indicated | Actual Speed | Diff |
|---|---|---|
| 20 mph | 22.9 mph | +2.9 mph |
| 30 mph | 34.3 mph | +4.3 mph |
| 45 mph | 51.5 mph | +6.5 mph |
| 60 mph | 68.6 mph | +8.6 mph |
| 75 mph | 85.8 mph | +10.8 mph |
| 90 mph | 103.0 mph | +13.0 mph |
Fender & Suspension Clearance
Flush fitment. Extends 17.7mm outwards. Check wheel arch clearance under full suspension compression.
Vehicles That Fit 285/35R18 (62+ Models)
Factory standard and optional vehicle fitments utilizing 285/35R18 tires: