193Best 285/55 R20 tires
37 rated tires available in this size, scored on dry, wet, snow, comfort and wear. Top overall right now is the Falken WildPeak A/T3W at 93/100.
32.3″
overall diameter
11.2″
section width
20″
rim diameter
623.6
revs per mile
Best 285/55 R20 all-terrain tires
28193
293
393
492
593
690
789
891
990
1090
1188
129316 more rated tires in this size are listed on their brand pages.
More top-rated 285/55 R20 tires
6
191
290
390
490
596
686Best 285/55 R20 mud-terrain tires
3
192
Conversion
285/55 R20 in inches
| Overall diameter | 32.3″ |
| Section width | 11.2″ |
| Rim diameter | 20″ |
| Sidewall height | 157 mm |
| Circumference | 101.6″ |
| Revolutions per mile | 623.6 |
The closest flotation size is 33x11.50R20 — 2% taller and 2.5% wider. Compare them in the calculator.
Wheels
What rims fit 285/55 R20 tires?
A tire fits a range of rim widths. Too narrow or too wide and the sidewall changes shape.
Minimum
8″
Ideal
9″
Maximum
10″
Rim diameter is fixed at 20″ — only the width varies. Estimated from the 11.2″ section width (70–90% rule).
Fitted from the factory on rims: 20x8, 20x9.
Popular comparisons
Sizes often compared with 285/55 R20
Close alternatives — each opens in the tire size calculator.
Sidewall
285/55 R20 — what does it mean?
| Parameter | Meaning |
|---|---|
| 285 | The first number is the section width — 285 mm, or about 11.2 inches across the widest part of the tire. |
| 55 | The second number is the aspect ratio: sidewall height as a percentage of width. At 55%, the sidewall is about 157 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. |