P315/40R19
Passenger / P-MetricFactory Specs, Physical Dimensions & Compatible Vehicle Applications
The P315/40R19 tire size features an overall diameter of 28.92 inches, a section width of 12.4 inches (315mm), and rotates 697 times per mile. It is a standard factory tire fitment on 2+ vehicle models including Ford GT.
Physical Dimensions & Specs
Overall Diameter
28.92"
734.6 mmSection Width
315 mm
12.40" wideSidewall Height
4.96"
126.0 mm (40% aspect)Revolutions / Mile
697
Circumference: 90.86"Rim Diameter
19"
Wheel sizeRecommended Rim Width
7.9" - 11"
Optimal rim width rangeWhere to Buy & Install P315/40R19 Tires
Looking for P315/40R19 tires? Skip hauling tires in your car—choose direct delivery to a local certified shop or doorstep delivery:
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Speedometer & Alternate Size Calculator
Testing an alternate size for your vehicle? Compare P315/40R19 against any proposed tire size below:
Visual Tire & Wheel Comparison
Speedometer Variance
| Indicated | Actual Speed | Diff |
|---|---|---|
| 20 mph | 20.5 mph | +0.5 mph |
| 30 mph | 30.7 mph | +0.7 mph |
| 45 mph | 46.0 mph | +1.0 mph |
| 60 mph | 61.4 mph | +1.4 mph |
| 75 mph | 76.7 mph | +1.7 mph |
| 90 mph | 92.0 mph | +2.0 mph |
Fender & Suspension Clearance
Flush fitment. Extends 17.7mm outwards. Check wheel arch clearance under full suspension compression.
Vehicles That Fit P315/40R19 (2+ Models)
Factory standard and optional vehicle fitments utilizing P315/40R19 tires: