193Best 205/40 R17 tires
30 rated tires available in this size, scored on dry, wet, snow, comfort and wear. Top overall right now is the Toyo Extensa HP II at 93/100.
23.5″
overall diameter
8.1″
section width
17″
rim diameter
859.8
revs per mile
Best 205/40 R17 summer tires
13193
286
383
482
582
678
779
875
974
1074
1170
12691 more rated tires in this size are listed on their brand pages.
More top-rated 205/40 R17 tires
9
183
283
385
488
585
774
866
Best 205/40 R17 winter tires
4
180
278
380
474Best 205/40 R17 all-season tires
4
188
284
382
472Conversion
205/40 R17 in inches
| Overall diameter | 23.5″ |
| Section width | 8.1″ |
| Rim diameter | 17″ |
| Sidewall height | 82 mm |
| Circumference | 73.7″ |
| Revolutions per mile | 859.8 |
The closest flotation size is 31x10.50R17 — 32.2% taller and 30.1% wider. Compare them in the calculator.
Wheels
What rims fit 205/40 R17 tires?
A tire fits a range of rim widths. Too narrow or too wide and the sidewall changes shape.
Minimum
5.5″
Ideal
6.5″
Maximum
7.5″
Rim diameter is fixed at 17″ — only the width varies. Estimated from the 8.1″ section width (70–90% rule).
Fitted from the factory on rims: 17x6.5, 17x7, 17x7.5, 17x8.
Popular comparisons
Sizes often compared with 205/40 R17
Close alternatives — each opens in the tire size calculator.
Sidewall
205/40 R17 — what does it mean?
| Parameter | Meaning |
|---|---|
| 205 | The first number is the section width — 205 mm, or about 8.1 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 82 mm tall. |
| R17 | R means radial construction, which nearly all modern tires use. The number is the rim diameter in inches — this tire fits a 17-inch wheel. |