215/45R20
Standard MetricFactory Specs, Physical Dimensions & Compatible Vehicle Applications
The 215/45R20 tire size features an overall diameter of 27.62 inches, a section width of 8.5 inches (215mm), and rotates 730 times per mile. It is a standard factory tire fitment on 8+ vehicle models including BMW i8.
Physical Dimensions & Specs
Overall Diameter
27.62"
701.5 mmSection Width
215 mm
8.46" wideSidewall Height
3.81"
96.8 mm (45% aspect)Revolutions / Mile
730
Circumference: 86.76"Rim Diameter
20"
Wheel sizeRecommended Rim Width
5.4" - 7.5"
Optimal rim width rangeWhere to Buy & Install 215/45R20 Tires
Looking for 215/45R20 tires? Skip hauling tires in your car—choose direct delivery to a local certified shop or doorstep delivery:
Tire Rack
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Amazon Automotive
Fast doorstep shipping for DIYers or bringing to your own shop.
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Speedometer & Alternate Size Calculator
Testing an alternate size for your vehicle? Compare 215/45R20 against any proposed tire size below:
Visual Tire & Wheel Comparison
Speedometer Variance
| Indicated | Actual Speed | Diff |
|---|---|---|
| 20 mph | 21.4 mph | +1.4 mph |
| 30 mph | 32.1 mph | +2.1 mph |
| 45 mph | 48.2 mph | +3.2 mph |
| 60 mph | 64.3 mph | +4.3 mph |
| 75 mph | 80.3 mph | +5.3 mph |
| 90 mph | 96.4 mph | +6.4 mph |
Fender & Suspension Clearance
Flush fitment. Extends 17.7mm outwards. Check wheel arch clearance under full suspension compression.
Vehicles That Fit 215/45R20 (8+ Models)
Factory standard and optional vehicle fitments utilizing 215/45R20 tires: