tirewheelguide

Best 275/45R18 tires

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

Top pick in 275/45R18

Michelin Pilot Sport 5

6,449 owner reviews · 23 tests

Check price on Amazon · 275/45R18 Read the review

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Compare two 275/45R18 tires side by side

Every rated 275/45R18 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 275/45R18 all-season tires

2
  1. Kumho Majesty 9 Solus TA91

    7 owner reviews · 1 test

    69 Check price on Amazon · 275/45R18
  2. Continental ContiProContact

    79 owner reviews

    64 Check price on Amazon · 275/45R18

Best 275/45R18 summer tires

31
  1. Michelin Pilot Sport 5

    6,449 owner reviews · 23 tests

    87 Check price on Amazon · 275/45R18
  2. Hankook Ventus Evo

    46 owner reviews · 10 tests

    83 Check price on Amazon · 275/45R18
  3. Pirelli P Zero (PZ5)

    54 owner reviews · 4 tests

    83 Check price on Amazon · 275/45R18
  4. Bridgestone Potenza Sport Evo

    57 owner reviews · 5 tests

    79 Check price on Amazon · 275/45R18
  5. Michelin Pilot Sport 4

    12,691 owner reviews · 21 tests

    81 Check price on Amazon · 275/45R18

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

Best 275/45R18 winter tires

8
  1. Hankook Winter i cept evo3

    22 owner reviews · 16 tests

    78 Check price on Amazon · 275/45R18
  2. Pirelli Winter Sottozero 3

    66 owner reviews · 10 tests

    73 Check price on Amazon · 275/45R18
  3. Yokohama BluEarth Winter V905

    15 owner reviews · 5 tests

    73 Check price on Amazon · 275/45R18
  4. Nexen WinGuard Sport 2

    61 owner reviews · 9 tests

    72 Check price on Amazon · 275/45R18
  5. Hankook Winter i cept evo2

    28 owner reviews · 5 tests

    69 Check price on Amazon · 275/45R18

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275/45R18 in inches

Overall diameter27.7″
Section width10.8″
Rim diameter18″
Sidewall height124 mm
Circumference87.2″
Revolutions per mile726.9

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

The closest flotation size is 28x12.00R18 — 0.9% taller and 10.8% wider. Compare them in the calculator.

Compare 275/45R18 with another size in the tire size calculator

What rims fit 275/45R18 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″

The rim diameter is fixed at 18″; only the width can change. Rims are usually 70–90% as wide as the tire’s 10.8″ section width.

Fitted from the factory on rims: 18x9, 18x9.5.

Some factory fitments sit outside that range: 18x10. Check the rim width approved for your car before you buy.

Sizes often compared with 275/45R18

Close alternatives — each opens in the tire size calculator.

275/45R18VS275/40R19

275/45R18 — what does it mean?

ParameterMeaning
275The first number is the section width — 275 mm, or about 10.8 inches across the widest part of the tire.
45The second number is the aspect ratio: sidewall height as a percentage of width. At 45%, the sidewall is about 124 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.