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245/40R18 tires

74 tires in 245/40R18 from 16 brands, shipped free to the 48 contiguous states and DC, or installed at our shop in South Florida.

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In this size

8 of 74 245/40R18 tires

A first look at what is in 245/40R18. The full list has every brand, with filters for season, load and speed.

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Prices are per tire; most cars take a set of 4. The total, with shipping free to the 48 contiguous states and DC, is shown before anything is confirmed.

The numbers

What 245/40R18 means

245/40R18 means a 245 mm section width, a sidewall 40% as tall as it is wide (about 98 mm), on a 18-inch wheel. The overall diameter works out to about 25.7 inches, which is what a replacement size has to match closely.

245/40R18 is the typical original-equipment size on the Subaru WRX and Audi A4. Trims and option packages differ, so check the sticker inside your driver's door or the sidewall of the tire on the car before ordering.

The two letters after the size on a tire (for example 102T) are its load index and speed rating. A replacement should meet or exceed the ones on your door sticker; our load and speed check reads them for you, and how to read a tire size explains the rest of the sidewall.

Nearby sizes

Other 18-inch sizes

Help

Not sure this is your size?

Type your VIN or scan the door sticker in the Tire Size Finder, or call the shop with your year, make and model.

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