245/70R18
Standard MetricFactory Specs, Physical Dimensions & Compatible Vehicle Applications
Factory Spec Overview
The 245/70R18 tire size features an overall diameter of 31.5 inches, a section width of 9.6 inches (245mm), and rotates 640 times per mile. It is a standard factory tire fitment on 2+ vehicle models including Toyota Land Cruiser.
Physical Dimensions & Specs
Overall Diameter
31.5"
800.1 mmSection Width
245 mm
9.65" wideSidewall Height
6.75"
171.4 mm (70% aspect)Revolutions / Mile
640
Circumference: 98.97"Rim Diameter
18"
Wheel sizeRecommended Rim Width
6.1" - 8.6"
Optimal rim width rangeSpeedometer & Alternate Size Calculator
Testing an alternate size for your vehicle? Compare 245/70R18 against any proposed tire size below:
Popular Comparisons:
Tire 1 (Stock / Base)245/70R18
Overall Height:31.5"
Sidewall:6.8"
Revs/Mile:640
Tire 2 (New / Compare)245/60R18
Overall Height:29.6"
Sidewall:5.8"
Revs/Mile:682
Visual Tire & Wheel Comparison
Speedometer Variance
-6.1%At 60 mph reading, actual speed is 56.3 mph
| Indicated | Actual Speed | Diff |
|---|---|---|
| 20 mph | 18.8 mph | -1.2 mph |
| 30 mph | 28.2 mph | -1.8 mph |
| 45 mph | 42.2 mph | -2.8 mph |
| 60 mph | 56.3 mph | -3.7 mph |
| 75 mph | 70.4 mph | -4.6 mph |
| 90 mph | 84.5 mph | -5.5 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:-0.96" lower ground clearance
Vehicles That Fit 245/70R18 (2+ Models)
Factory standard and optional vehicle fitments utilizing 245/70R18 tires: