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For 245/40R18 tires, the best overall value is the Royal Black Racing Trac at $55, which works out to about $1.6 per 1,000 miles across roughly 35,000 miles of tread life — the lowest true cost-per-mile among 6 245/40R18 options in stock. The cheapest 245/40R18 tire is the Royal Black Racing Trac at $55, while the longest-lasting is the Continental ExtremeContact DWS06+ rated near 50,000 miles. Available 245/40R18 brands include Royal Black, Nexen, Lexani, Continental, Michelin. The 245/40R18 is a size with 245mm width, a 40% sidewall ratio, a 18-inch wheel fit, and roughly 25.7-inch overall diameter. Confirm the size on your door jamb before ordering. Every 245/40R18 tire at TuahFix ships free in two days with Amazon-verified fulfillment, easy returns, 22 million-plus reviews, and optional South Florida mobile installation.
245/40R18 tires ranked by cost-per-mile
| Tire | Price | Tread Life | $/1k mi |
|---|---|---|---|
| Royal Black Racing Trac | $55 | 35,000 mi | $1.6 |
| Nexen NPriz AH8 | $110 | 35,000 mi | $3.1 |
| Lexani LXUHP-207 | $110 | 35,000 mi | $3.1 |
| Continental ExtremeContact DWS06+ | $210 | 50,000 mi | $4.2 |
| Michelin Pilot Sport All Season 4 | $250 | 45,000 mi | $5.6 |
All 245/40R18 tires in stock
Vehicles that use 245/40R18 tires
245/40R18 is a factory or common replacement size for these vehicles. Confirm the size printed on your driver-door jamb before ordering.
What does 245/40R18 mean?
245 = tread width in millimeters. 40 = aspect ratio (sidewall height is 40% of width ≈ 3.9″). R18 = fits a 18-inch wheel. Overall diameter ≈ 25.8″.