189Best 315/45 R22 tires
2 rated tires available in this size, scored on dry, wet, snow, comfort and wear. Top overall right now is the Nitto Ridge Grappler at 89/100.
33.2″
overall diameter
12.4″
section width
22″
rim diameter
608.2
revs per mile
Best 315/45 R22 all-terrain tires
2189
286Conversion
315/45 R22 in inches
| Overall diameter | 33.2″ |
| Section width | 12.4″ |
| Rim diameter | 22″ |
| Sidewall height | 142 mm |
| Circumference | 104.2″ |
| Revolutions per mile | 608.2 |
The closest flotation size is 33x12.50R22 — 0.5% shorter and 0.8% wider. Compare them in the calculator.
Wheels
What rims fit 315/45 R22 tires?
A tire fits a range of rim widths. Too narrow or too wide and the sidewall changes shape.
Minimum
8.5″
Ideal
10″
Maximum
11″
Rim diameter is fixed at 22″ — only the width varies. Estimated from the 12.4″ section width (70–90% rule).
Popular comparisons
Sizes often compared with 315/45 R22
Close alternatives — each opens in the tire size calculator.
Sidewall
315/45 R22 — what does it mean?
| Parameter | Meaning |
|---|---|
| 315 | The first number is the section width — 315 mm, or about 12.4 inches across the widest part of the tire. |
| 45 | The second number is the aspect ratio: sidewall height as a percentage of width. At 45%, the sidewall is about 142 mm tall. |
| R22 | R means radial construction, which nearly all modern tires use. The number is the rim diameter in inches — this tire fits a 22-inch wheel. |