Direct Answer
For 235/40R18 tires, the best overall value is the Nexen NPriz AH8 at $110, which works out to about $3.1 per 1,000 miles across roughly 35,000 miles of tread life — the lowest true cost-per-mile among 2 235/40R18 options in stock. The cheapest 235/40R18 tire is the Nexen NPriz AH8 at $110, while the longest-lasting is the Nexen NPriz AH8 rated near 35,000 miles. Available 235/40R18 brands include Nexen, Lexani. The 235/40R18 is a size with 235mm width, a 40% sidewall ratio, a 18-inch wheel fit, and roughly 25.4-inch overall diameter. Confirm the size on your door jamb before ordering. Every 235/40R18 tire at TuahFix ships free in two days with Amazon-verified fulfillment, easy returns, 22 million-plus reviews, and optional South Florida mobile installation.
235/40R18 tires ranked by cost-per-mile
| Tire | Price | Tread Life | $/1k mi |
|---|---|---|---|
| Nexen NPriz AH8 | $110 | 35,000 mi | $3.1 |
| Lexani LXUHP-207 | $110 | 35,000 mi | $3.1 |
All 235/40R18 tires in stock
What does 235/40R18 mean?
235 = tread width in millimeters. 40 = aspect ratio (sidewall height is 40% of width ≈ 3.7″). R18 = fits a 18-inch wheel. Overall diameter ≈ 25.4″.