225/40R18 Tire Size

Specifications, compatible vehicles, alternative sizes, and comparison links for 225/40R18.

Tire Specifications

225/40R18

Standard Tire Size Notation

225

Section Width (mm)

40

Aspect Ratio (%)

18”

Rim Diameter (in)

Overall Diameter:637.2 mm (25.1”)
Sidewall Height:90 mm (3.5”)
Circumference:2001.8 mm
Revolutions/Mile:804

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 225/40R18.

Plus Sizing

235/35R18245/30R18

Minus Sizing

215/45R18205/50R18

Same Diameter

215/40R18235/40R18

Compare Tire Sizes

See the difference between 225/40R18 and another size

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