265/45R21 tires are ready to ship now, with 24 in stock spanning premium, performance, and value brands including Continental, Pirelli, Nokian, Hankook, Laufenn, Haida, Toyo, Falken, and Ironman. Every order includes free shipping, and Affirm financing is available so you can spread the cost over time. Orders ship fast from a nationwide network, and you can browse the full range across all tires to compare tread patterns and pricing side by side.
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Showing 24 in stock.
What 265/45R21 tires means
The numbers in this size describe the tire's geometry precisely:
- 265 is the section width in millimeters (about 10.43 inches) measured across the widest part of the tire.
- 45 is the aspect ratio, meaning the sidewall height is 45% of the section width. That works out to roughly 119.2 mm, or about 4.69 inches.
- R indicates radial construction, and 21 is the wheel diameter in inches.
Stacking two sidewalls onto the 21-inch rim gives an overall tire diameter of about 30.39 inches, and this size turns roughly 664 revolutions per mile. Those figures matter because they keep your speedometer and odometer accurate, determine whether the tire clears your suspension and fenders, and shape the ride. A 45-series sidewall is on the shorter, sportier side, which favors steering response over cushioning.
Vehicles & uses
A 21-inch fitment in this width and aspect ratio is a large-diameter size commonly found on modern SUVs, crossovers, and sport-utility vehicles that ship from the factory on 21-inch wheels. The mix of touring, all-season, high-performance, and winter designs offered in this size reflects that broad use — from comfort-focused highway driving to sharper performance handling. Always confirm the size, load, and speed requirements printed on your door placard or owner's manual before buying.
Brands & options in 265/45R21 tires
On the premium side, Pirelli offers the P-Zero (PZ4) and the Scorpion Zero All Season, while Continental covers touring and performance duty with the CrossContact LX Sport and the ExtremeContact DWS06 PLUS. Nokian brings the Surpass AS01 plus winter-focused options.
For performance and all-season SUV use, Hankook offers the iON evo AS SUV IH01A, and Toyo and Falken round out the mid-range. Value shoppers can look to Laufenn with the X FIT HP LA41 and to Haida with the HD927.
How to choose
Season: Summer tires deliver the most grip in warm weather; all-season tires balance year-round usability; winter tires are built for cold, snow, and ice. Pick the category that matches your climate and driving.
Treadwear & UTQG: The UTQG rating stamped on the sidewall grades treadwear, traction, and temperature. A higher treadwear number generally suggests a longer-lasting tread, while performance tires often trade longevity for grip.
Load index & speed rating: These codes follow the size (for example, 104 or 108, paired with a speed letter). Never drop below the load index or speed rating your vehicle requires. In this size you'll find both standard-load and XL (reinforced) constructions.
Warranty: Some models carry a mileage warranty and others do not, so check the coverage on each product page before deciding.
Frequently Asked Questions
What does 265/45R21 mean?
It's a tire 265 mm wide (about 10.43 inches) with a sidewall height 45% of that width (roughly 4.69 inches), built as a radial for a 21-inch wheel. The assembled tire stands about 30.39 inches tall and turns around 664 revolutions per mile.
How much do 265/45R21 tires cost?
Current pricing ranges from about $153.00 to $699.91 per tire, depending on brand, construction, and performance category.
What vehicles use 265/45R21 tires?
This is a large-diameter size commonly used on SUVs and crossovers that come equipped with 21-inch wheels. Confirm the exact size, load index, and speed rating your vehicle needs on the door placard or owner's manual.