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255/70 R18 Tyres

Everything we know about the 255/70 R18 tyre size: 1 owner reviews covering 18 miles of driving, and EU label data for the tyres you can actually buy in it.

  • 1owner reviews
  • 18 milescovered on them
  • 97tyres made in this size
255/70 R18 To scale, mm
Ø 814 255 179 18" 179

255/70 R18 EU tyre label data

EU label values are declared for each individual size, so the figures here are exact for 255/70 R18 rather than a range across a model. 50 tyres carry label data in this size. The most common load index is 113 (up to 1,150 kg per tyre). Speed ratings on offer: V (240 km/h), H (210 km/h), T (190 km/h), S (180 km/h), R (170 km/h), Q (160 km/h). 24 tyres in this size carry the 3PMSF severe snow marking.

A Best wet grip

1 tyres in this size hold the top EU wet grip rating, class A. The highest scoring on Tyre Reviews:

B Lowest rolling resistance

The most fuel efficient choice: 10 tyres in this size reach rolling resistance class B. The highest scoring on Tyre Reviews:

70dB Quietest tyres

The quietest 255/70 R18 tyres are labelled at 70 dB external noise:

Label values come from the EU EPREL database and apply to the EU market versions of each tyre. 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 255/70 R18 mean?

A 255/70 R18 tyre is 255 mm wide, its sidewall is 70% of that width (179 mm) tall, and it fits a 18 inch wheel. That gives an overall diameter of roughly 814 mm.

Section width255 mm
Sidewall height179 mm
Rim diameter18" (457 mm)
Overall diameter≈ 814 mm
Circumference≈ 2,558 mm
Revolutions per km≈ 391
Revolutions per mile≈ 629

Also written as

255/70R18 255/70 ZR18 255-70-18 255 70 18

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

Comparing two sizes? Use the tyre size calculator →

What cars use 255/70 R18 tyres?

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

Toyota 2006 Avalon 1 reviews in this size

What drivers say about their 255/70 R18 tyres

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

51%
Bridgestone Dueler HT 684 255/70 R18 Toyota 2006 Avalon 18 miles June 17, 2023
OEM tires on my Tundra W/T. Did not drive the truck a lot for several years because I had a more economical vehicle (Ford Focus). Still, it never sat more than 30-60 days before I put into rotation to keep things moving. I had noticed slight cracking in the sidewall above the rims shortly after purchase, but didn't give it a lot of thought because the dealer never raised it as an issue during my regular service, which included tire inspections.

Following a recent trip to Fairbanks, a fellow commented on the condition of the cracks and also observed cracks in the deep part of the tread. A tire shop up there advised the tread line cracks were more cosmetic, but the sidewall cracks could be catastrophic. She recommended replacement before the end of the year.

Fortune smiled upon me as Costco had a sale on Michelin tires and I got a set of LTX M/S 2 for a decent price. The 3 hour gross time for the change over wasn't great, but I have 'not Bridgestone.' After this experience, I won't recommend Bridgestone tires to anyone.

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Where this data comes from

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

About the TR Score

The Tyre Reviews Score rates each tyre 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.

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Who does the testing

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

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