193Best 275/40 R20 tires
110 rated tires available in this size, scored on dry, wet, snow, comfort and wear. Top overall right now is the Michelin Pilot Sport A/S 3+ at 94/100.
28.7″
overall diameter
10.8″
section width
20″
rim diameter
703.7
revs per mile
Best 275/40 R20 summer tires
53193
289
389
486
584
684
784
889
989
1082
1183
128341 more rated tires in this size are listed on their brand pages.
More top-rated 275/40 R20 tires
24
190
288
390
488
588
687
784
883
984
1084
1183
129312 more rated tires in this size are listed on their brand pages.
Best 275/40 R20 all-season tires
24
194
289
388
490
586
686
785
884
984
1085
1184
128712 more rated tires in this size are listed on their brand pages.
Best 275/40 R20 winter tires
9
288
381
480
578
678
776
Conversion
275/40 R20 in inches
| Overall diameter | 28.7″ |
| Section width | 10.8″ |
| Rim diameter | 20″ |
| Sidewall height | 110 mm |
| Circumference | 90″ |
| Revolutions per mile | 703.7 |
The closest flotation size is 33x11.50R20 — 15.1% taller and 6.2% wider. Compare them in the calculator.
Wheels
What rims fit 275/40 R20 tires?
A tire fits a range of rim widths. Too narrow or too wide and the sidewall changes shape.
Minimum
7.5″
Ideal
8.5″
Maximum
9.5″
Rim diameter is fixed at 20″ — only the width varies. Estimated from the 10.8″ section width (70–90% rule).
Fitted from the factory on rims: 20x8.5, 20x9, 20x9.5, 20x10, 20x10.5, 20x11, 20x11.5.
Popular comparisons
Sizes often compared with 275/40 R20
Close alternatives — each opens in the tire size calculator.
Sidewall
275/40 R20 — what does it mean?
| Parameter | Meaning |
|---|---|
| 275 | The first number is the section width — 275 mm, or about 10.8 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 110 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. |