265/45R20 Tire Size Specifications & Compatible Vehicles
Overall Diameter
746.5 mm
Section Width
265 mm
Sidewall Height
119.3 mm
Circumference
2345.2 mm
Revs/Mile
686
Rim Diameter
20"
Inch Equivalent
29.4x10.4R20
Rim Width (ETRTO)
7.5" – 10.0"
Compatible Vehicles
The following vehicles use 265/45R20 tires from the factory:
Alternative Tire Sizes
These tire sizes are within 3% overall diameter of 265/45R20 and may be used as replacements:
Popular Comparisons
See how 265/45R20 compares to other common tire sizes:
Understanding 265/45R20
The tire size 265/45R20 means the tire has a section width of 265mm, an aspect ratio of 45% (the sidewall height is 45% of the width), and fits a 20-inch rim.
Sidewall Height = 265 x 0.45 = 119.3 mm
Overall Diameter = (119.3 x 2) + (20 x 25.4) = 746.5 mm
Circumference = 746.5 x π = 2345.2 mm
Overall Diameter = (119.3 x 2) + (20 x 25.4) = 746.5 mm
Circumference = 746.5 x π = 2345.2 mm
Frequently Asked Questions
The 265/45R20 tire size is used on 3 vehicle trims including the 2025 Genesis GV80, 2024 Genesis GV80, 2021 Genesis GV80.
A 265/45R20 tire has an overall diameter of 746.5mm (29.4 inches). The sidewall height is 119.3mm, and the total circumference is 2345mm.
For 265/45R20 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 265/45R20 746.5mm diameter. Compatible alternatives include 165/80R19, 235/40R22, 155/85R19. Use our Tire Size Calculator to compare any two sizes.