P215/50R18
Passenger / P-MetricFactory Specs, Physical Dimensions & Compatible Vehicle Applications
Factory Spec Overview
The P215/50R18 tire size features an overall diameter of 26.46 inches, a section width of 8.5 inches (215mm), and rotates 762 times per mile. It is a standard factory tire fitment on 14+ vehicle models including Mazda CX-3.
Physical Dimensions & Specs
Overall Diameter
26.46"
672.1 mmSection Width
215 mm
8.46" wideSidewall Height
4.23"
107.4 mm (50% aspect)Revolutions / Mile
762
Circumference: 83.14"Rim Diameter
18"
Wheel sizeRecommended Rim Width
5.4" - 7.5"
Optimal rim width rangeSpeedometer & Alternate Size Calculator
Testing an alternate size for your vehicle? Compare P215/50R18 against any proposed tire size below:
Popular Comparisons:
Tire 1 (Stock / Base)215/50R18
Overall Height:26.5"
Sidewall:4.2"
Revs/Mile:762
Tire 2 (New / Compare)245/60R18
Overall Height:29.6"
Sidewall:5.8"
Revs/Mile:682
Visual Tire & Wheel Comparison
Speedometer Variance
+11.8%At 60 mph reading, actual speed is 67.1 mph
| Indicated | Actual Speed | Diff |
|---|---|---|
| 20 mph | 22.4 mph | +2.4 mph |
| 30 mph | 33.5 mph | +3.5 mph |
| 45 mph | 50.3 mph | +5.3 mph |
| 60 mph | 67.1 mph | +7.1 mph |
| 75 mph | 83.8 mph | +8.8 mph |
| 90 mph | 100.6 mph | +10.6 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:+1.56" ground clearance
Vehicles That Fit P215/50R18 (14+ Models)
Factory standard and optional vehicle fitments utilizing P215/50R18 tires: