184Best 295/40 R21 tires
32 rated tires available in this size, scored on dry, wet, snow, comfort and wear. Top overall right now is the Michelin Pilot Sport All Season 4 at 88/100.
30.3″
overall diameter
11.6″
section width
21″
rim diameter
665.8
revs per mile
Best 295/40 R21 summer tires
14184
287
381
479
577
676
776
974
1074
1171
12712 more rated tires in this size are listed on their brand pages.
Best 295/40 R21 all-season tires
9
188
286
384
484
577
678
872
963More top-rated 295/40 R21 tires
7
190
293
384
486
580
679
758Best 295/40 R21 winter tires
2
181
276Conversion
295/40 R21 in inches
| Overall diameter | 30.3″ |
| Section width | 11.6″ |
| Rim diameter | 21″ |
| Sidewall height | 118 mm |
| Circumference | 95.2″ |
| Revolutions per mile | 665.8 |
Wheels
What rims fit 295/40 R21 tires?
A tire fits a range of rim widths. Too narrow or too wide and the sidewall changes shape.
Minimum
8″
Ideal
9.5″
Maximum
10.5″
Rim diameter is fixed at 21″ — only the width varies. Estimated from the 11.6″ section width (70–90% rule).
Fitted from the factory on rims: 21x10, 21x10.5.
Popular comparisons
Sizes often compared with 295/40 R21
Close alternatives — each opens in the tire size calculator.
Sidewall
295/40 R21 — what does it mean?
| Parameter | Meaning |
|---|---|
| 295 | The first number is the section width — 295 mm, or about 11.6 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 118 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. |