265/35R21 Tire Size Specifications & Compatible Vehicles
Overall Diameter
718.9 mm
Section Width
265 mm
Sidewall Height
92.8 mm
Circumference
2258.5 mm
Revs/Mile
713
Rim Diameter
21"
Inch Equivalent
28.3x10.4R21
Rim Width (ETRTO)
7.5" – 10.0"
Alternative Tire Sizes
These tire sizes are within 3% overall diameter of 265/35R21 and may be used as replacements:
Understanding 265/35R21
The tire size 265/35R21 means the tire has a section width of 265mm, an aspect ratio of 35% (the sidewall height is 35% of the width), and fits a 21-inch rim.
Sidewall Height = 265 x 0.35 = 92.8 mm
Overall Diameter = (92.8 x 2) + (21 x 25.4) = 718.9 mm
Circumference = 718.9 x π = 2258.5 mm
Overall Diameter = (92.8 x 2) + (21 x 25.4) = 718.9 mm
Circumference = 718.9 x π = 2258.5 mm
Frequently Asked Questions
The 265/35R21 is a standard tire size. Check your vehicle door jamb sticker or owner manual to confirm compatibility.
A 265/35R21 tire has an overall diameter of 718.9mm (28.3 inches). The sidewall height is 92.8mm, and the total circumference is 2259mm.
For 265/35R21 tires, the ETRTO recommended rim width is 9.0". The acceptable range is 7.5" minimum to 10.0" maximum. Using a rim outside this range can cause improper bead seating and unsafe handling.
Yes, as long as the replacement tire overall diameter is within 3% of the 265/35R21 718.9mm diameter. Compatible alternatives include 215/55R19, 295/40R19, 155/60R21. Use our Tire Size Calculator to compare any two sizes.