255/55R18 tires are in stock right now with 47 options spanning more than 20 brands, from premium touring names to budget-friendly performers. Every order ships free, arrives fast from a nationwide delivery network, and can be split into payments with Affirm financing. Prices run from $127.82 to $584.00 per tire, so there's a fit for nearly any budget and driving style.
Shop 255/55R18 Tires In Stock
Showing 36 in stock.
What 255/55R18 tires means
The size code describes the tire's exact geometry. Here's what each number means for this size:
- 255 — section width of 255 mm (about 10.04 inches) across the widest part of the tire.
- 55 — the aspect ratio, meaning the sidewall height is 55% of the section width. That works out to roughly 140.2 mm (5.52 inches) of sidewall.
- R — radial construction, the standard for modern passenger tires.
- 18 — the wheel diameter in inches this tire mounts to.
Add it up and the overall diameter is about 29.04 inches, turning roughly 694 revolutions per mile. Those numbers matter because they determine speedometer and odometer accuracy, wheel-well and brake clearance, and ride feel — the taller sidewall in this size cushions bumps while keeping steering response predictable. Staying within this size keeps your gauges reading true.
Vehicles & uses
255/55R18 is a popular fitment for crossovers and SUVs, where a wider footprint and a tall-enough sidewall balance highway comfort with load capacity. Retailers commonly group this size under SUV, crossover, touring, and highway categories. To be sure it fits your exact vehicle, check the size molded on your current tire's sidewall or the placard inside the driver's door before ordering.
Brands & options in 255/55R18 tires
You'll find a wide spread of makers here — browse them all on the all tires hub, or narrow straight to the size below.
Premium touring
Michelin tires are represented by the Michelin Latitude Tour HP, while Continental tires offer the ProContact TX for refined, quiet miles.
Performance & all-season
Falken tires bring the sporty Azenis FK510A SUV, and Laufenn tires deliver the X FIT HP LA41. For rugged use, the Venom Power tires Trail Hunter A/T and the GT Radial Adventuro HT lean toward light-duty and highway terrain. Nexen adds the Roadian GTX and the N5000 Platinum.
Value
Budget-conscious shoppers can look at Lexani tires such as the LX-THIRTY and LXUHP-207, the Lionhart tires LH-TEN, and the Kelly tires EDGE TOURING AS.
How to choose
Season: All-season tires cover most year-round driving; summer tires sharpen dry and wet grip in warm climates; winter tires are the safe pick where ice and snow are frequent. Watch for the Three-Peak Mountain Snowflake symbol if severe winter traction matters.
Treadwear & UTQG: The UTQG rating (treadwear, traction, temperature) helps compare expected longevity and grip between models — a higher treadwear number generally suggests a longer-lasting tire.
Load index & speed rating: The numbers and letter after the size (for example 105V or 109H) indicate how much weight each tire can carry and its rated speed. Meet or exceed your vehicle's factory specification.
Warranty: Many touring and all-season tires carry a mileage warranty; check each product page for its specific coverage before buying.
Frequently Asked Questions
What does 255/55R18 mean?
It describes a radial tire 255 mm wide with a sidewall 55% of that width, mounted on an 18-inch wheel. That produces an overall diameter near 29.04 inches and about 694 revolutions per mile.
How much do 255/55R18 tires cost?
Prices range from $127.82 to $584.00 per tire, depending on brand, tier, and performance category.
Are 255/55R18 tires available for SUVs and crossovers?
Yes. This is a common crossover and SUV size, with 47 options across more than 20 brands in touring, all-season, performance, and all-terrain styles. Confirm the size against your door placard or current tire before ordering.