315/30R22 Tire Size Specifications & Compatible Vehicles
Overall Diameter
747.8 mm
Section Width
315 mm
Sidewall Height
94.5 mm
Circumference
2349.3 mm
Revs/Mile
685
Rim Diameter
22"
Inch Equivalent
29.4x12.4R22
Rim Width (ETRTO)
10.0" – 12.5"
Alternative Tire Sizes
These tire sizes are within 3% overall diameter of 315/30R22 and may be used as replacements:
Understanding 315/30R22
The tire size 315/30R22 means the tire has a section width of 315mm, an aspect ratio of 30% (the sidewall height is 30% of the width), and fits a 22-inch rim.
Sidewall Height = 315 x 0.3 = 94.5 mm
Overall Diameter = (94.5 x 2) + (22 x 25.4) = 747.8 mm
Circumference = 747.8 x π = 2349.3 mm
Overall Diameter = (94.5 x 2) + (22 x 25.4) = 747.8 mm
Circumference = 747.8 x π = 2349.3 mm
Frequently Asked Questions
The 315/30R22 is a standard tire size. Check your vehicle door jamb sticker or owner manual to confirm compatibility.
A 315/30R22 tire has an overall diameter of 747.8mm (29.4 inches). The sidewall height is 94.5mm, and the total circumference is 2349mm.
For 315/30R22 tires, the ETRTO recommended rim width is 11.0". The acceptable range is 10.0" minimum to 12.5" 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 315/30R22 747.8mm diameter. Compatible alternatives include 165/65R21, 195/55R21, 215/50R21. Use our Tire Size Calculator to compare any two sizes.