335/30R18
Standard MetricFactory Specs, Physical Dimensions & Compatible Vehicle Applications
The 335/30R18 tire size features an overall diameter of 25.91 inches, a section width of 13.2 inches (335mm), and rotates 778 times per mile. It is a standard factory tire fitment on 12+ vehicle models including Dodge Viper.
Physical Dimensions & Specs
Overall Diameter
25.91"
658.1 mmSection Width
335 mm
13.19" wideSidewall Height
3.96"
100.6 mm (30% aspect)Revolutions / Mile
778
Circumference: 81.41"Rim Diameter
18"
Wheel sizeRecommended Rim Width
8.4" - 11.7"
Optimal rim width rangeWhere to Buy & Install 335/30R18 Tires
Looking for 335/30R18 tires? Skip hauling tires in your car—choose direct delivery to a local certified shop or doorstep delivery:
Tire Rack
Free shipping directly to over 10,000+ certified local installers.
- ✓Delivered to local installer (Firestone, Discount Tire & local shops)
- ✓Mobile installation available — mount & balance right in your driveway
- ✓Free 2-year road hazard warranty on most eligible tire models
Amazon Automotive
Fast doorstep shipping for DIYers or bringing to your own shop.
- ✓Prime doorstep shipping for home garages or spares
- ✓Huge range of budget and specialty tire sizes in stock
- ✓Ideal if you have a local independent mechanic you prefer
As an affiliate for Tire Rack and Amazon, we earn from qualifying purchases at no extra cost to you.
Speedometer & Alternate Size Calculator
Testing an alternate size for your vehicle? Compare 335/30R18 against any proposed tire size below:
Visual Tire & Wheel Comparison
Speedometer Variance
| Indicated | Actual Speed | Diff |
|---|---|---|
| 20 mph | 22.8 mph | +2.8 mph |
| 30 mph | 34.2 mph | +4.2 mph |
| 45 mph | 51.4 mph | +6.4 mph |
| 60 mph | 68.5 mph | +8.5 mph |
| 75 mph | 85.6 mph | +10.6 mph |
| 90 mph | 102.7 mph | +12.7 mph |
Fender & Suspension Clearance
Flush fitment. Extends 17.7mm outwards. Check wheel arch clearance under full suspension compression.
Vehicles That Fit 335/30R18 (12+ Models)
Factory standard and optional vehicle fitments utilizing 335/30R18 tires: