Tire Size Guide

255/50R18 Tires

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

Our Top Pick in 255/50R18
Pirelli Cinturato P7 P7C2
Grand Touring All SeasonSafety

The Pirelli Cinturato P7 P7C2 is a compelling choice for drivers who prioritize wet weather performance, thanks to its standout wet grip score of 9.5, which far exceeds the grand touring all-season category average.

Wet grip score of 9.5 significantly exceeds the category average of 7.4, making it a strong performer in rainy conditions. Comfort and noise ratings both meet the category benchmarks, ensuring a smooth and quiet ride typical of grand touring tires. The AA traction rating suggests reliable stopping power on wet surfaces, further enhancing its wet weather capabilities.
80Spec score (est.)
Full analysis
1 model

Best Grand Touring All Season Tires in 255/50R18

All Grand Touring All Season tires

The Pirelli Cinturato P7 P7C2 is a compelling choice for drivers who prioritize wet weather performance, thanks to its standout wet grip score of 9.5, which far exceeds the grand touring all-season category average.

  • Wet grip score of 9.5 significantly exceeds the category average of 7.4, making it a strong performer in rainy conditions.
  • Comfort and noise ratings both meet the category benchmarks, ensuring a smooth and quiet ride typical of grand touring tires.

Lack of a treadwear warranty and below-average treadlife score could lead to higher long-term costs.

Treadwear 320Traction AA
Spec score80estimated
Details
1 model

Best Ultra High Performance Summer Tires in 255/50R18

All Ultra High Performance Summer tires

The P Zero Rosso (Collezione) is tailored for drivers who prioritize wet grip, with a score of 9 that surpasses the ultra-high-performance summer category average of 7.6.

  • Wet grip score of 9 significantly exceeds the category average of 7.6, making it a strong performer in rainy conditions.
  • Dry grip and handling both score 8, providing reliable performance on dry roads, though not leading the segment.

Lack of a treadwear warranty may deter those seeking long-term durability assurances.

Treadwear 220Traction AA
Spec score77estimated
Details
1 model

Best Touring All-Season Tires in 255/50R18

All Touring All-Season tires

The Bridgestone Turanza T005 is a strong contender for those prioritizing comfort and longevity in a grand touring all-season tire.

  • Comfort and noise scores of 8 match the category benchmarks, ensuring a smooth and quiet ride typical of grand touring tires.
  • 70,000-mile treadwear warranty exceeds the category average of 62,053 miles, offering better long-term value.

Lacks 3PMSF certification, which may be a concern for drivers in regions with harsh winter conditions.

Treadwear 320Traction A
Spec score69estimated
Details
Fitment

Vehicles Using 255/50R18

+ 17 more vehicles use this size

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Popular Brands in 255/50R18

Size decoded

What 255/50R18 Means

255/50R18 designates a tire 255 mm (10.0") wide with a sidewall 50% as tall as it is wide — about 128 mm (5.0") — mounted on a 18-inch wheel. That works out to an overall diameter of roughly 28.0", a circumference of about 88.1", and approximately 719 revolutions per mile. Exact figures vary slightly by manufacturer and tread design.

128 mm

Sidewall height

28.0"

Overall diameter

88.1"

Circumference

719

Revs per mile

Of the 3 255/50R18 tire models we track, the most common category is grand touring all season (1 model), followed by ultra high 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 255/50R18 mean?
255/50R18 breaks down as follows: 255mm is the tire's section width (the widest point), 50 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 255/50R18 tires?
255/50R18 is a common fitment for vehicles like the 2008 Bentley Arnage, 2007 Bentley Arnage, 2006 Bentley Arnage, 2006 Bentley Azure and others. Always confirm your specific trim's fitment before purchasing.
How tall is a 255/50R18 tire?
A 255/50R18 tire has a sidewall height of about 128 mm (5.0") and an overall diameter of roughly 28.0", turning approximately 719 revolutions per mile. Actual dimensions vary slightly by manufacturer and model, so confirm against your vehicle's placard before changing sizes.

255/50R18 Research Guides

Confirm 255/50R18 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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