189Best 275/35 R21 tires
36 rated tires available in this size, scored on dry, wet, snow, comfort and wear. Top overall right now is the Michelin Pilot Sport 4 at 89/100.
28.6″
overall diameter
10.8″
section width
21″
rim diameter
705.7
revs per mile
Best 275/35 R21 summer tires
17189
283
383
480
579
679
779
877
976
1076
1175
5 more rated tires in this size are listed on their brand pages.
More top-rated 275/35 R21 tires
10
188
293
384
484
586
680
788
872
974
1058Best 275/35 R21 winter tires
5
180
281
379
575Best 275/35 R21 all-season tires
4
188
286
384
485Conversion
275/35 R21 in inches
| Overall diameter | 28.6″ |
| Section width | 10.8″ |
| Rim diameter | 21″ |
| Sidewall height | 96 mm |
| Circumference | 89.8″ |
| Revolutions per mile | 705.7 |
Wheels
What rims fit 275/35 R21 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 21″ — only the width varies. Estimated from the 10.8″ section width (70–90% rule).
Fitted from the factory on rims: 21x9, 21x9.5, 21x10, 21x10.5, 21x11, 21x11.5.
Popular comparisons
Sizes often compared with 275/35 R21
Close alternatives — each opens in the tire size calculator.
Sidewall
275/35 R21 — 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. |
| 35 | The second number is the aspect ratio: sidewall height as a percentage of width. At 35%, the sidewall is about 96 mm tall. |
| R21 | R means radial construction, which nearly all modern tires use. The number is the rim diameter in inches — this tire fits a 21-inch wheel. |