Tire Size Guide

275/45R18 Tires

Compare 8 available models across 3 categories, then confirm fitment for your vehicle.

Our Top Pick in 275/45R18
Bridgestone Potenza Sport
Ultra High Performance SummerPerformance

The Bridgestone Potenza Sport is designed for drivers who demand top-tier performance in dry and wet conditions.

Perfect dry grip score of 10, surpassing the category average of 8.7, ideal for aggressive cornering and high-speed stability. Wet grip rating of 9 is well above the category benchmark of 7.6, offering reliable performance in rainy conditions. Handling score of 10 ensures precise steering response, making it a strong choice for spirited driving.
80Spec score (est.)
Full analysis
6 models

Best Ultra High Performance Summer Tires in 275/45R18

All Ultra High Performance Summer tires

The Bridgestone Potenza Sport is designed for drivers who demand top-tier performance in dry and wet conditions.

  • Perfect dry grip score of 10, surpassing the category average of 8.7, ideal for aggressive cornering and high-speed stability.
  • Wet grip rating of 9 is well above the category benchmark of 7.6, offering reliable performance in rainy conditions.

Average comfort and noise levels may deter those seeking a more refined and quiet driving experience.

Treadwear 300Traction AA
Spec score80estimated
Details

The ContiSportContact 5 is a solid choice for drivers who prioritize grip above all else.

  • Dry grip score of 9 matches the highest in the ultra-high-performance summer category, making it a strong choice for spirited driving.
  • Wet grip rating of 9 significantly exceeds the category average of 7.6, offering reliable performance in wet conditions.

The lower treadwear rating of 280 suggests a shorter lifespan compared to alternatives like the Michelin Pilot Sport 4S, which may impact long-term value.

Treadwear 280Traction AA
Spec score79estimated
Details

The Yokohama ADVAN Sport V105 is tailored for drivers who demand top-notch dry and wet grip, boasting perfect scores in both dry grip and handling.

  • Perfect dry grip score of 10, surpassing the category average of 8.7, ideal for spirited driving on dry roads.
  • Wet grip rating of 9 is significantly above the category average of 7.6, enhancing performance in rainy conditions.

Average comfort and noise levels may disappoint those looking for a more refined ride experience.

Treadwear 240Traction AA
Spec score78estimated
Details
Pirelli P ZeroPerformance

The Pirelli P Zero is a strong choice for those who prioritize dry grip and handling precision above all else.

  • Dry grip and handling scores are both perfect 10s, setting a high bar for the ultra-high-performance summer category.
  • Wet grip rating of 9 surpasses the category average of 7.6, making it reliable in summer rain.

If comfort and noise are significant factors, the P Zero's average scores in these areas may not meet your expectations.

Treadwear 220Traction AA
Spec score77estimated
Details
Show 2 more ultra high performance summer options
Michelin Pilot Sport 4

20,000 mi warranty · Treadwear 320

61
Bridgestone Potenza S007 A

Specs on detail page

1 model

Best Max Performance Summer Tires in 275/45R18

All Max Performance Summer tires

The Pirelli Cinturato P7 is a strong contender for those who prioritize grip and handling in a max performance summer tire.

  • Dry grip score of 9 and wet grip score of 9 both exceed the category averages, making it a strong performer in both conditions.
  • Handling response is rated at 9, indicating precise steering and control, which is crucial for spirited driving.

The lower UTQG treadwear rating of 260 suggests faster wear, which may not suit budget-conscious buyers looking for longevity.

Treadwear 260Traction AA
Spec score78estimated
Details
1 model

Best Touring All-Season Tires in 275/45R18

All Touring All-Season tires

The Solus Majesty 9 TA91 is a solid option for drivers who prioritize dry grip and handling in a touring all-season tire.

  • Dry grip score of 8.5 surpasses the category average of 7.8, making it a strong choice for dry road conditions.
  • Comfort and noise scores both meet the category average of 8, ensuring a smooth and quiet ride typical of touring tires.

With a wet grip score of 5.5, it may not be the best choice for drivers in regions with frequent rain.

45,000 mi warranty
Spec score63estimated
Details
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Popular Brands in 275/45R18

Size decoded

What 275/45R18 Means

275/45R18 designates a tire 275 mm (10.8") wide with a sidewall 45% as tall as it is wide — about 124 mm (4.9") — mounted on a 18-inch wheel. That works out to an overall diameter of roughly 27.7", a circumference of about 87.2", and approximately 727 revolutions per mile. Exact figures vary slightly by manufacturer and tread design.

124 mm

Sidewall height

27.7"

Overall diameter

87.2"

Circumference

727

Revs per mile

Of the 8 275/45R18 tire models we track, the most common category is ultra high performance summer (6 models), followed by max performance summer (1) — a good indicator of the kind of vehicles and driving this size is designed for.

Before you buy

Frequently Asked Questions

What does 275/45R18 mean?
275/45R18 breaks down as follows: 275mm is the tire's section width (the widest point), 45 is the aspect ratio (sidewall height as a percentage of width), R means radial construction, and 18 is the wheel diameter in inches.
What vehicles use 275/45R18 tires?
275/45R18 is a standard tire size found on many trucks, SUVs, and crossovers. Use our vehicle search to confirm your exact fitment.
How tall is a 275/45R18 tire?
A 275/45R18 tire has a sidewall height of about 124 mm (4.9") and an overall diameter of roughly 27.7", turning approximately 727 revolutions per mile. Actual dimensions vary slightly by manufacturer and model, so confirm against your vehicle's placard before changing sizes.

275/45R18 Research Guides

Confirm 275/45R18 fits your vehicle

Wheel size can vary by trim and option package. Enter your year, make, model, and trim to verify fitment before you order.

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