195Best 285/50 R20 tires
38 rated tires available in this size, scored on dry, wet, snow, comfort and wear. Top overall right now is the Michelin Defender LTX M/S at 95/100.
31.2″
overall diameter
11.2″
section width
20″
rim diameter
646
revs per mile
Best 285/50 R20 all-season tires
14195
290
384
482
580
678
792
2 more rated tires in this size are listed on their brand pages.
Best 285/50 R20 summer tires
10
190
287
389
483
581
675
773
848
954
1062Best 285/50 R20 all-terrain tires
7
189
286
383
488
583
690
771More top-rated 285/50 R20 tires
4
190
282
385
442Best 285/50 R20 winter tires
2
188
286Best 285/50 R20 mud-terrain tires
1
186Conversion
285/50 R20 in inches
| Overall diameter | 31.2″ |
| Section width | 11.2″ |
| Rim diameter | 20″ |
| Sidewall height | 143 mm |
| Circumference | 98.1″ |
| Revolutions per mile | 646 |
The closest flotation size is 33x11.50R20 — 5.7% taller and 2.5% wider. Compare them in the calculator.
Wheels
What rims fit 285/50 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: 20x8.5, 20x9.
Popular comparisons
Sizes often compared with 285/50 R20
Close alternatives — each opens in the tire size calculator.
Sidewall
285/50 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. |
| 50 | The second number is the aspect ratio: sidewall height as a percentage of width. At 50%, the sidewall is about 143 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. |