245/40R18 Tire Size

Specifications, compatible vehicles, alternative sizes, and comparison links for 245/40R18.

Tire Specifications

245/40R18

Standard Tire Size Notation

245

Section Width (mm)

40

Aspect Ratio (%)

18”

Rim Diameter (in)

Overall Diameter:653.2 mm (25.7”)
Sidewall Height:98 mm (3.9”)
Circumference:2052.1 mm
Revolutions/Mile:784

Compatible Vehicles

No vehicles found for this tire size in our database.

Alternative Tire Sizes

Plus/minus sizing options and same-diameter alternatives based on 245/40R18.

Plus Sizing

255/35R18265/30R18

Minus Sizing

235/45R18225/50R18

Same Diameter

235/40R18255/40R18

Compare Tire Sizes

See the difference between 245/40R18 and another size

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