181Best 325/40 R22 tires
2 rated tires available in this size, scored on dry, wet, snow, comfort and wear. Top overall right now is the Continental PremiumContact 6 at 81/100.
32.2″
overall diameter
12.8″
section width
22″
rim diameter
625.6
revs per mile
Best 325/40 R22 summer tires
2181
277Conversion
325/40 R22 in inches
| Overall diameter | 32.2″ |
| Section width | 12.8″ |
| Rim diameter | 22″ |
| Sidewall height | 130 mm |
| Circumference | 101.3″ |
| Revolutions per mile | 625.6 |
The closest flotation size is 33x12.50R22 — 2.4% taller and 2.3% narrower. Compare them in the calculator.
Wheels
What rims fit 325/40 R22 tires?
A tire fits a range of rim widths. Too narrow or too wide and the sidewall changes shape.
Minimum
9″
Ideal
10″
Maximum
11.5″
Rim diameter is fixed at 22″ — only the width varies. Estimated from the 12.8″ section width (70–90% rule).
Fitted from the factory on rims: 22x11.5.
Popular comparisons
Sizes often compared with 325/40 R22
Close alternatives — each opens in the tire size calculator.
Sidewall
325/40 R22 — what does it mean?
| Parameter | Meaning |
|---|---|
| 325 | The first number is the section width — 325 mm, or about 12.8 inches across the widest part of the tire. |
| 40 | The second number is the aspect ratio: sidewall height as a percentage of width. At 40%, the sidewall is about 130 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. |