215/55R18
Standard MetricFactory Specs, Physical Dimensions & Compatible Vehicle Applications
Factory Spec Overview
The 215/55R18 tire size features an overall diameter of 27.31 inches, a section width of 8.5 inches (215mm), and rotates 738 times per mile. It is a standard factory tire fitment on 64+ vehicle models including Hyundai Kona.
Physical Dimensions & Specs
Overall Diameter
27.31"
693.7 mmSection Width
215 mm
8.46" wideSidewall Height
4.66"
118.4 mm (55% aspect)Revolutions / Mile
738
Circumference: 85.8"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 215/55R18 against any proposed tire size below:
Popular Comparisons:
Tire 1 (Stock / Base)215/55R18
Overall Height:27.3"
Sidewall:4.7"
Revs/Mile:738
Tire 2 (New / Compare)245/60R18
Overall Height:29.6"
Sidewall:5.8"
Revs/Mile:682
Visual Tire & Wheel Comparison
Speedometer Variance
+8.3%At 60 mph reading, actual speed is 65.0 mph
| Indicated | Actual Speed | Diff |
|---|---|---|
| 20 mph | 21.7 mph | +1.7 mph |
| 30 mph | 32.5 mph | +2.5 mph |
| 45 mph | 48.7 mph | +3.7 mph |
| 60 mph | 65.0 mph | +5.0 mph |
| 75 mph | 81.2 mph | +6.2 mph |
| 90 mph | 97.5 mph | +7.5 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:+1.13" ground clearance
Vehicles That Fit 215/55R18 (64+ Models)
Factory standard and optional vehicle fitments utilizing 215/55R18 tires: