275/40R22 Tire Size Specifications & Compatible Vehicles

Overall Diameter

778.8 mm

Section Width

275 mm

Sidewall Height

110.0 mm

Circumference

2446.7 mm

Revs/Mile

658

Rim Diameter

22"

Alternative Tire Sizes

These tire sizes are within 3% overall diameter of 275/40R22 and may be used as replacements:

275/45R21 Safe 0.3% · same width · -1" rim 275/50R20 Safe 0.5% · same width · -2" rim 295/45R20 Safe 0.7% · +20mm · -2" rim 265/50R20 Safe 0.7% · -10mm · -2" rim 265/45R21 Safe 0.9% · -10mm · -1" rim 285/40R22 Safe 1.0% · +10mm · same rim 295/40R21 Safe 1.2% · +20mm · -1" rim 255/55R20 Safe 1.3% · -20mm · -2" rim 285/45R21 Safe 1.4% · +10mm · -1" rim 295/35R22 Caution 1.7% · +20mm · same rim 285/50R20 Caution 1.8% · +10mm · -2" rim 285/45R20 Caution 1.8% · +10mm · -2" rim

Understanding 275/40R22

The tire size 275/40R22 means the tire has a section width of 275mm, an aspect ratio of 40% (the sidewall height is 40% of the width), and fits a 22-inch rim.

Sidewall Height = 275 x 0.4 = 110.0 mm
Overall Diameter = (110.0 x 2) + (22 x 25.4) = 778.8 mm
Circumference = 778.8 x π = 2446.7 mm

With an aspect ratio of 40%, this is a low-profile tire. Low-profile tires offer sharper steering response and better cornering stability, but provide a firmer ride and are more susceptible to pothole damage. They are commonly found on sport sedans and performance vehicles.

Choosing Replacement Tires

When replacing 275/40R22 tires, verify the size matches your vehicle's tire placard (typically found on the driver's door jamb or in the owner's manual). The NHTSA Tire Ratings Search tool lets you look up manufacturer load and speed ratings for specific tires.

Key factors beyond size: load index (must meet or exceed the vehicle's requirement), speed rating (must match or exceed the original specification), and seasonal type (all-season, summer, or winter) based on your driving conditions. The U.S. Tire Manufacturers Association recommends replacing all four tires at once, or at minimum in pairs on the same axle.