174Best 215/45 R20 tires
3 rated tires available in this size, scored on dry, wet, snow, comfort and wear. Top overall right now is the Bridgestone Blizzak LM-32 at 75/100.
27.6″
overall diameter
8.5″
section width
20″
rim diameter
730.2
revs per mile
Best 215/45 R20 summer tires
2174
272Best 215/45 R20 winter tires
1
175Conversion
215/45 R20 in inches
| Overall diameter | 27.6″ |
| Section width | 8.5″ |
| Rim diameter | 20″ |
| Sidewall height | 97 mm |
| Circumference | 86.8″ |
| Revolutions per mile | 730.2 |
The closest flotation size is 33x11.50R20 — 19.5% taller and 35.9% wider. Compare them in the calculator.
Wheels
What rims fit 215/45 R20 tires?
A tire fits a range of rim widths. Too narrow or too wide and the sidewall changes shape.
Minimum
6″
Ideal
7″
Maximum
7.5″
Rim diameter is fixed at 20″ — only the width varies. Estimated from the 8.5″ section width (70–90% rule).
Fitted from the factory on rims: 20x7, 20x7.5, 20x8.5.
Sidewall
215/45 R20 — what does it mean?
| Parameter | Meaning |
|---|---|
| 215 | The first number is the section width — 215 mm, or about 8.5 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 97 mm tall. |
| R20 | R means radial construction, which nearly all modern tires use. The number is the rim diameter in inches — this tire fits a 20-inch wheel. |