P285/30R20
Passenger / P-MetricFactory Specs, Physical Dimensions & Compatible Vehicle Applications
The P285/30R20 tire size features an overall diameter of 26.73 inches, a section width of 11.2 inches (285mm), and rotates 754 times per mile. It is a standard factory tire fitment on 24+ vehicle models including Chevrolet Corvette.
Physical Dimensions & Specs
Overall Diameter
26.73"
678.9 mmSection Width
285 mm
11.22" wideSidewall Height
3.37"
85.6 mm (30% aspect)Revolutions / Mile
754
Circumference: 83.98"Rim Diameter
20"
Wheel sizeRecommended Rim Width
7.1" - 10"
Optimal rim width rangeWhere to Buy & Install P285/30R20 Tires
Looking for P285/30R20 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 P285/30R20 against any proposed tire size below:
Visual Tire & Wheel Comparison
Speedometer Variance
| Indicated | Actual Speed | Diff |
|---|---|---|
| 20 mph | 22.1 mph | +2.1 mph |
| 30 mph | 33.2 mph | +3.2 mph |
| 45 mph | 49.8 mph | +4.8 mph |
| 60 mph | 66.4 mph | +6.4 mph |
| 75 mph | 83.0 mph | +8.0 mph |
| 90 mph | 99.6 mph | +9.6 mph |
Fender & Suspension Clearance
Flush fitment. Extends 17.7mm outwards. Check wheel arch clearance under full suspension compression.
Vehicles That Fit P285/30R20 (24+ Models)
Factory standard and optional vehicle fitments utilizing P285/30R20 tires: