305/35R22 Tire Size Specifications & Compatible Vehicles
Overall Diameter
772.3 mm
Section Width
305 mm
Sidewall Height
106.8 mm
Circumference
2426.3 mm
Revs/Mile
663
Rim Diameter
22"
Inch Equivalent
30.4x12R22
Rim Width (ETRTO)
9.5" – 12.0"
Alternative Tire Sizes
These tire sizes are within 3% overall diameter of 305/35R22 and may be used as replacements:
Understanding 305/35R22
The tire size 305/35R22 means the tire has a section width of 305mm, an aspect ratio of 35% (the sidewall height is 35% of the width), and fits a 22-inch rim.
Sidewall Height = 305 x 0.35 = 106.8 mm
Overall Diameter = (106.8 x 2) + (22 x 25.4) = 772.3 mm
Circumference = 772.3 x π = 2426.3 mm
Overall Diameter = (106.8 x 2) + (22 x 25.4) = 772.3 mm
Circumference = 772.3 x π = 2426.3 mm
Frequently Asked Questions
The 305/35R22 is a standard tire size. Check your vehicle door jamb sticker or owner manual to confirm compatibility.
A 305/35R22 tire has an overall diameter of 772.3mm (30.4 inches). The sidewall height is 106.8mm, and the total circumference is 2426mm.
For 305/35R22 tires, the ETRTO recommended rim width is 10.5". The acceptable range is 9.5" minimum to 12.0" 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 305/35R22 772.3mm diameter. Compatible alternatives include 165/80R20, 265/45R21, 265/50R20. Use our Tire Size Calculator to compare any two sizes.