225/55R16
Standard MetricFactory Specs, Physical Dimensions & Compatible Vehicle Applications
Factory Spec Overview
The 225/55R16 tire size features an overall diameter of 25.74 inches, a section width of 8.9 inches (225mm), and rotates 783 times per mile. It is a standard factory tire fitment on 150+ vehicle models including Audi A6.
Physical Dimensions & Specs
Overall Diameter
25.74"
653.8 mmSection Width
225 mm
8.86" wideSidewall Height
4.87"
123.7 mm (55% aspect)Revolutions / Mile
783
Circumference: 80.88"Rim Diameter
16"
Wheel sizeRecommended Rim Width
5.6" - 7.9"
Optimal rim width rangeSpeedometer & Alternate Size Calculator
Testing an alternate size for your vehicle? Compare 225/55R16 against any proposed tire size below:
Popular Comparisons:
Tire 1 (Stock / Base)225/55R16
Overall Height:25.7"
Sidewall:4.9"
Revs/Mile:783
Tire 2 (New / Compare)245/60R18
Overall Height:29.6"
Sidewall:5.8"
Revs/Mile:682
Visual Tire & Wheel Comparison
Speedometer Variance
+14.9%At 60 mph reading, actual speed is 68.9 mph
| Indicated | Actual Speed | Diff |
|---|---|---|
| 20 mph | 23.0 mph | +3.0 mph |
| 30 mph | 34.5 mph | +4.5 mph |
| 45 mph | 51.7 mph | +6.7 mph |
| 60 mph | 68.9 mph | +8.9 mph |
| 75 mph | 86.2 mph | +11.2 mph |
| 90 mph | 103.4 mph | +13.4 mph |
Fender & Suspension Clearance
Fitment Status: MODERATE RISK
Flush fitment. Extends 17.7mm outwards. Check wheel arch clearance under full suspension compression.
Inner Strut Space:7.7mm LESS clearance
Outer Fender Push:Extends 17.7mm further out
Ride Height Delta:+1.92" ground clearance
Vehicles That Fit 225/55R16 (150+ Models)
Factory standard and optional vehicle fitments utilizing 225/55R16 tires: