265/40R20
Standard MetricFactory Specs, Physical Dimensions & Compatible Vehicle Applications
The 265/40R20 tire size features an overall diameter of 28.35 inches, a section width of 10.4 inches (265mm), and rotates 711 times per mile. It is a standard factory tire fitment on 28+ vehicle models including Audi A8, Audi A8 Quattro.
Physical Dimensions & Specs
Overall Diameter
28.35"
720.1 mmSection Width
265 mm
10.43" wideSidewall Height
4.17"
105.9 mm (40% aspect)Revolutions / Mile
711
Circumference: 89.05"Rim Diameter
20"
Wheel sizeRecommended Rim Width
6.6" - 9.3"
Optimal rim width rangeWhere to Buy & Install 265/40R20 Tires
Looking for 265/40R20 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 265/40R20 against any proposed tire size below:
Visual Tire & Wheel Comparison
Speedometer Variance
| Indicated | Actual Speed | Diff |
|---|---|---|
| 20 mph | 20.9 mph | +0.9 mph |
| 30 mph | 31.3 mph | +1.3 mph |
| 45 mph | 47.0 mph | +2.0 mph |
| 60 mph | 62.6 mph | +2.6 mph |
| 75 mph | 78.3 mph | +3.3 mph |
| 90 mph | 93.9 mph | +3.9 mph |
Fender & Suspension Clearance
Flush fitment. Extends 17.7mm outwards. Check wheel arch clearance under full suspension compression.
Vehicles That Fit 265/40R20 (28+ Models)
Factory standard and optional vehicle fitments utilizing 265/40R20 tires: