tirewheelguide

Best 205/40R18 tires

82 rated tires available in this size, scored on dry, wet, snow, comfort and wear.

Top pick in 205/40R18

Michelin CrossClimate 3 Sport

1,255 owner reviews · 5 tests

Check price on Amazon · 205/40R18 Read the review

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Compare two 205/40R18 tires side by side

Every rated 205/40R18 tire, by season

Ranked by our Relative score, weighed against how many reviews and tests stand behind it.

How scores work
Relative score
0–100. Blends road tests (60%) and owner reviews (40%) category by category, the same way on every TireWheelGuide page. With only one of the two, the missing half is estimated from it, so the score stays closer to average. It needs at least one road test or five owner reviews.
Ranking
The score already allows for how much stands behind it: with only a few reviews or tests a tire stays near the typical score. Among similar scores, newer tires rank higher and tires replaced by a newer generation lower.

Best 205/40R18 all-season tires

14
  1. Michelin CrossClimate 3 Sport

    1,255 owner reviews · 5 tests

    83 Check price on Amazon · 205/40R18
  2. Hankook iON FlexClimate

    11 owner reviews · 3 tests

    83 Check price on Amazon · 205/40R18
  3. Continental AllSeasonContact 2

    3,275 owner reviews · 25 tests

    80 Check price on Amazon · 205/40R18
  4. Goodyear Vector All Season 4

    17 owner reviews · 3 tests

    77 Check price on Amazon · 205/40R18
  5. Michelin CrossClimate 2

    21,568 owner reviews · 32 tests

    84 Check price on Amazon · 205/40R18

2 more rated tires in this size are listed on their brand pages.

Best 205/40R18 summer tires

52
  1. Pirelli P Zero (PZ5)

    53 owner reviews · 4 tests

    81 Check price on Amazon · 205/40R18
  2. Michelin Pilot Sport 5

    6,414 owner reviews · 23 tests

    82 Check price on Amazon · 205/40R18
  3. Continental PremiumContact 7

    575 owner reviews · 32 tests

    82 Check price on Amazon · 205/40R18
  4. Hankook Ventus Evo

    45 owner reviews · 10 tests

    80 Check price on Amazon · 205/40R18
  5. Kumho Ecsta Sport PS72

    1,031 owner reviews · 8 tests

    79 Check price on Amazon · 205/40R18

40 more rated tires in this size are listed on their brand pages.

Best 205/40R18 winter tires

14
  1. Bridgestone Blizzak 6

    8 owner reviews · 17 tests

    79 Check price on Amazon · 205/40R18
  2. Continental WinterContact TS 870 P

    31 owner reviews · 27 tests

    79 Check price on Amazon · 205/40R18
  3. Michelin Pilot Alpin 5

    30 owner reviews · 18 tests

    84 Check price on Amazon · 205/40R18
  4. Goodyear UltraGrip Performance+

    18 owner reviews · 11 tests

    77 Check price on Amazon · 205/40R18
  5. Toyo Observe EWS1

    1 test

    71 Check price on Amazon · 205/40R18

2 more rated tires in this size are listed on their brand pages.

More 205/40R18 tires, season not listed

2
  1. Toyo Proxes R888R

    80 owner reviews

    48 Check price on Amazon · 205/40R18
  2. BlackHawk Street-H HU02

    10 owner reviews

    38 Check price on Amazon · 205/40R18

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205/40R18 in inches

Overall diameter24.5″
Section width8.1″
Rim diameter18″
Sidewall height82 mm
Circumference76.8″
Revolutions per mile824.6

Revolutions per mile: how many times the tire turns in one mile, the count your speedometer is calibrated to.

Compare 205/40R18 with another size in the tire size calculator

What rims fit 205/40R18 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″

The rim diameter is fixed at 18″; only the width can change. Rims are usually 70–90% as wide as the tire’s 8.1″ section width.

Fitted from the factory on rims: 18x7, 18x7.5.

Some factory fitments sit outside that range: 18x8. Check the rim width approved for your car before you buy.

Sizes often compared with 205/40R18

Close alternatives — each opens in the tire size calculator.

205/40R18VS215/45R17
205/40R18VS205/45R17

205/40R18 — what does it mean?

ParameterMeaning
205The first number is the section width — 205 mm, or about 8.1 inches across the widest part of the tire.
40The second number is the aspect ratio: sidewall height as a percentage of width. At 40%, the sidewall is about 82 mm tall.
R18R means radial construction, which nearly all modern tires use. The number is the rim diameter in inches — this tire fits a 18-inch wheel.