325/45R22 Tire Size Specifications & Compatible Vehicles
Overall Diameter
851.3 mm
Section Width
325 mm
Sidewall Height
146.3 mm
Circumference
2674.4 mm
Revs/Mile
602
Rim Diameter
22"
Inch Equivalent
33.5x12.8R22
Rim Width (ETRTO)
10.5" – 13.0"
Alternative Tire Sizes
These tire sizes are within 3% overall diameter of 325/45R22 and may be used as replacements:
Understanding 325/45R22
The tire size 325/45R22 means the tire has a section width of 325mm, an aspect ratio of 45% (the sidewall height is 45% of the width), and fits a 22-inch rim.
Sidewall Height = 325 x 0.45 = 146.3 mm
Overall Diameter = (146.3 x 2) + (22 x 25.4) = 851.3 mm
Circumference = 851.3 x π = 2674.4 mm
Overall Diameter = (146.3 x 2) + (22 x 25.4) = 851.3 mm
Circumference = 851.3 x π = 2674.4 mm
Frequently Asked Questions
The 325/45R22 is a standard tire size. Check your vehicle door jamb sticker or owner manual to confirm compatibility.
A 325/45R22 tire has an overall diameter of 851.3mm (33.5 inches). The sidewall height is 146.3mm, and the total circumference is 2674mm.
For 325/45R22 tires, the ETRTO recommended rim width is 11.5". The acceptable range is 10.5" minimum to 13.0" 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 325/45R22 851.3mm diameter. Compatible alternatives include 195/75R22, 225/65R22, 265/60R21. Use our Tire Size Calculator to compare any two sizes.