235/45R18 tires are available here across 90 in-stock options spanning more than 20 brands, from premium touring names to budget-friendly performers. Every order ships free, with Affirm financing at checkout and fast delivery from a nationwide network. Whether you need a quiet all-season, a sticky summer tire, or a winter-ready set, this page collects the full 235/45R18 lineup in one place.
Shop 235/45R18 Tires In Stock
Showing 36 in stock.
What 235/45R18 tires means
The size code breaks down into exact measurements. The 235 is the section width in millimeters (about 9.25 inches). The 45 is the aspect ratio, meaning the sidewall height is 45% of that width — roughly 105.8 mm, or 4.16 inches. The R means radial construction, and 18 is the wheel diameter in inches these tires mount to.
Add it up and a 235/45R18 tire has an overall diameter of about 26.33 inches and turns roughly 766 revolutions per mile. Those numbers matter: overall diameter affects speedometer accuracy and gearing, sidewall height influences ride comfort and pothole protection, and section width relates to fender and suspension clearance. Staying close to the factory 235/45R18 spec keeps your odometer honest and your fitment clean.
Vehicles & uses
235/45R18 is a common fitment in the passenger-car and small crossover space. Comparable listings from major retailers describe this size on high-performance and ultra-high-performance passenger cars as well as small passenger SUV and CUV applications. Because it's a relatively low-profile 18-inch size, it tends to suit sporty sedans, coupes, and compact crossovers where handling and a modern stance matter. Always confirm the size and load rating recommended on your vehicle's door placard before buying.
Brands & options in 235/45R18 tires
Explore the full spread on the all tires hub, or narrow by brand below.
Premium & touring
For refined ride and long-mileage touring, look at Continental tires including the Continental ProContact TX. Michelin, Pirelli, Nokian, and Toyo are also represented in this size, and Pirelli tires offers its own performance-oriented lineup.
Performance & all-weather
Hankook tires covers several angles here, from the touring Hankook Kinergy GT H436 to the sportier Hankook Kinergy XP H446. For all-season versatility, Nexen tires includes the Nexen N'Priz AH5 and the four-season Nexen N Blue 4S 2. The Kumho tires range adds the Kumho Solus TA91.
Value
Budget-minded shoppers can compare Gt Radial tires such as the GT Radial Maxtour LX and the all-weather GT Radial MaxClimate, plus Hercules tires with the Hercules Roadtour Connect AS and Ironman tires.
How to choose
Season
Pick a summer tire for maximum dry and wet grip in warm climates, an all-season for year-round balance in mild winters, or a dedicated winter tire if you regularly face snow and ice. Some options in this size are built as all-weather designs that split the difference.
Treadwear & UTQG
The UTQG rating (treadwear, traction, temperature) printed on the sidewall helps you compare expected longevity and grip between models. A higher treadwear number generally points to a longer-lasting tire, while performance tires often trade tread life for stickier compounds.
Load index & speed rating
Match or exceed the load index and speed rating your vehicle calls for. Never drop below the factory-specified ratings for your car.
Warranty
Mileage and workmanship coverage varies by model and brand, so weigh the warranty alongside price and season when you decide.
Frequently Asked Questions
What does 235/45R18 tires mean?
It describes a tire that is 235 mm wide with a sidewall height 45% of that width (about 4.16 inches), built as a radial to fit an 18-inch wheel. The overall diameter is roughly 26.33 inches, turning about 766 revolutions per mile.
How much do 235/45R18 tires cost?
Prices range from about $94 to $564.89 per tire depending on brand, season, and performance level, so there are options for both value and premium budgets.
What vehicles use 235/45R18 tires?
This size is commonly found on performance passenger cars and some small crossovers and SUVs. Check your vehicle's door placard to confirm it's the correct size for your car.