235/70R17 Tire Size Specifications & Compatible Vehicles

Overall Diameter

760.8 mm

Section Width

235 mm

Sidewall Height

164.5 mm

Circumference

2390.1 mm

Revs/Mile

673

Rim Diameter

17"

Alternative Tire Sizes

These tire sizes are within 3% overall diameter of 235/70R17 and may be used as replacements:

235/75R16 Safe 0.3% · same width · -1" rim 235/65R18 Safe 0.3% · same width · +1" rim 255/55R19 Safe 0.3% · +20mm · +2" rim 255/60R18 Safe 0.3% · +20mm · +1" rim 255/65R17 Safe 0.3% · +20mm · same rim 245/55R19 Safe 1.1% · +10mm · +2" rim 245/60R18 Safe 1.3% · +10mm · +1" rim 245/65R17 Safe 1.4% · +10mm · same rim 225/65R18 Safe 1.5% · -10mm · +1" rim 245/75R16 Caution 1.7% · +10mm · -1" rim 225/70R17 Caution 1.8% · -10mm · same rim 245/70R17 Caution 1.8% · +10mm · same rim

Understanding 235/70R17

The tire size 235/70R17 means the tire has a section width of 235mm, an aspect ratio of 70% (the sidewall height is 70% of the width), and fits a 17-inch rim.

Sidewall Height = 235 x 0.7 = 164.5 mm
Overall Diameter = (164.5 x 2) + (17 x 25.4) = 760.8 mm
Circumference = 760.8 x π = 2390.1 mm

With an aspect ratio of 70%, this is a high-profile tire with a tall sidewall. High-profile tires provide a cushioned ride, better absorption of road imperfections, and greater resistance to sidewall damage — ideal for trucks, SUVs, and off-road use.

Choosing Replacement Tires

When replacing 235/70R17 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.