245/30R20
Standard MetricFactory Specs, Physical Dimensions & Compatible Vehicle Applications
The 245/30R20 tire size features an overall diameter of 25.79 inches, a section width of 9.6 inches (245mm), and rotates 782 times per mile. It is a standard factory tire fitment on 22+ vehicle models including Audi R8.
Physical Dimensions & Specs
Overall Diameter
25.79"
655.1 mmSection Width
245 mm
9.65" wideSidewall Height
2.89"
73.4 mm (30% aspect)Revolutions / Mile
782
Circumference: 81.01"Rim Diameter
20"
Wheel sizeRecommended Rim Width
6.1" - 8.6"
Optimal rim width rangeWhere to Buy & Install 245/30R20 Tires
Looking for 245/30R20 tires? Skip hauling tires in your car—choose direct delivery to a local certified shop or doorstep delivery:
Tire Rack
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- ✓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
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Speedometer & Alternate Size Calculator
Testing an alternate size for your vehicle? Compare 245/30R20 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 | 34.4 mph | +4.4 mph |
| 45 mph | 51.6 mph | +6.6 mph |
| 60 mph | 68.8 mph | +8.8 mph |
| 75 mph | 86.0 mph | +11.0 mph |
| 90 mph | 103.2 mph | +13.2 mph |
Fender & Suspension Clearance
Flush fitment. Extends 17.7mm outwards. Check wheel arch clearance under full suspension compression.
Vehicles That Fit 245/30R20 (22+ Models)
Factory standard and optional vehicle fitments utilizing 245/30R20 tires: