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240/45 R20 Tires

Everything we know about the 240/45 R20 tire size: 1 owner reviews covering 52,000 miles of driving, and EU label data for the tires you can actually buy in it.

  • 1owner reviews
  • 52,000 milescovered on them
240/45 R20 To scale, mm
Ø 724 240 108 20" 108

What does 240/45 R20 mean?

A 240/45 R20 tire is 240 mm wide, its sidewall is 45% of that width (108 mm) tall, and it fits a 20 inch wheel. That gives an overall diameter of roughly 724 mm.

240/45 R20 nominal dimensions
Section width240 mm
Sidewall height108 mm
Rim diameter20" (508 mm)
Overall diameter≈ 724 mm
Circumference≈ 2,275 mm
Revolutions per km≈ 440
Revolutions per mile≈ 708

Also written as

240/45R20 240/45 ZR20 240-45-20 240 45 20

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 240/45 R20 tires?

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

What drivers say about their 240/45 R20 tires

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

83%
Continental Sport Contact 3 240/45 R20 Vauxhall Astra GTC 52,000 miles January 23, 2020
They were great tires for the rear of a front wheel drive car. They only lasted 12000 miles on the front but have lasted 52,000 on the rear. Fantastic tires. Would buy again but only for the rear axle.

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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.

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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