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255/50 R18 Tires

Everything we know about the 255/50 R18 tire size: 3 owner reviews covering 8,000 miles of driving, and EU label data for the tires you can actually buy in it.

  • 3owner reviews
  • 8,000 milescovered on them
  • 29tires made in this size
255/50 R18 To scale, mm
Ø 712 255 128 18" 128

255/50 R18 EU tire label data

EU label values are declared for each individual size, so the figures here are exact for 255/50 R18 rather than a range across a model. 21 tires carry label data in this size. The most common load index is 106 (up to 950 kg per tire). Speed ratings on offer: Y (300 km/h), W (270 km/h), V (240 km/h). 7 tires in this size carry the 3PMSF severe snow marking.

A Best wet grip

6 tires in this size hold the top EU wet grip rating, class A. The highest scoring on Tire Reviews:

A Lowest rolling resistance

The most fuel efficient choice: 3 tires in this size reach rolling resistance class A. The highest scoring on Tire Reviews:

69dB Quietest tires

The quietest 255/50 R18 tires are labelled at 69 dB external noise:

Label values come from the EU EPREL database and apply to the EU market versions of each tire. Wet grip and rolling resistance run from class A (best) to E; noise is the measured drive-by figure. A good label is a floor, not a verdict - the tests and owner ratings above tell you far more.

What does 255/50 R18 mean?

A 255/50 R18 tire is 255 mm wide, its sidewall is 50% of that width (128 mm) tall, and it fits a 18 inch wheel. That gives an overall diameter of roughly 712 mm.

Section width255 mm
Sidewall height128 mm
Rim diameter18" (457 mm)
Overall diameter≈ 712 mm
Circumference≈ 2,237 mm
Revolutions per km≈ 447
Revolutions per mile≈ 719

Also written as

255/50R18 255/50 ZR18 255-50-18 255 50 18

Figures are calculated from the nominal size. A loaded, rolling tire runs a few percent smaller, and true widths vary slightly between makes.

Comparing two sizes? Use the tire size calculator →

What cars use 255/50 R18 tires?

The cars most often running this size in our owner reviews. Each links to the best rated tires for that exact car.

BMW X3 1 reviews in this size Land Rover Range Rover P38 1 reviews in this size Dodge Challenger 1 reviews in this size

What drivers say about their 255/50 R18 tires

The most recent owner reviews fitted in this size, in their own words.

86%
Nokian WeatherProof SUV 255/50 R18 Land Rover Range Rover P38 6,000 miles October 30, 2018
Weatherproof SUV on Range Rover P38 diesel. During the hottest summer for years and 6000 miles (2000 around Scotland) only wore down 2mm. I have used them in wet and very pleased with the grip over that from Pirelli Scorpions it previously had. As an off-roader I have used them at our 4x4 site, as well as going to marshal at others. They do very well and are actually better off-road than Falken AT we also have. The Nokians have a kevlar type layer in the sidewalls to give better protection against damage and punctures.

Will buy them again and also when the time comes see if I can get them for our other vehicles.

Drive on 255/50 R18 tires?

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Where this data comes from

Owner ratings are submitted through the review form on this site, naming the tire, the size and the distance covered, and are checked by hand before publication. Test results come from independent published tire tests indexed by size, and label values from the EU EPREL database.

About the TR Score

The Tire Reviews Score rates each tire out of 10 using independent test results and the full body of owner reviews, so you can check a car-specific ranking against the wider evidence.

Our review ethics →

Who does the testing

Every test published as a Tire Reviews test is run by Jonathan Benson, who has been testing tires independently since 2007.

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