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185/40 R14 Tires

Everything we know about the 185/40 R14 tire size: 1 owner reviews covering 0 miles of driving, and EU label data for the tires you can actually buy in it.

  • 1owner reviews
  • 0 milescovered on them
185/40 R14 To scale, mm
Ø 504 185 74 14" 74

What does 185/40 R14 mean?

A 185/40 R14 tire is 185 mm wide, its sidewall is 40% of that width (74 mm) tall, and it fits a 14 inch wheel. That gives an overall diameter of roughly 504 mm.

185/40 R14 nominal dimensions
Section width185 mm
Sidewall height74 mm
Rim diameter14" (356 mm)
Overall diameter≈ 504 mm
Circumference≈ 1,582 mm
Revolutions per km≈ 632
Revolutions per mile≈ 1,017

Also written as

185/40R14 185/40 ZR14 185-40-14 185 40 14

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 drivers say about their 185/40 R14 tires

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

0%
Wanli S1063 185/40 R14 November 4, 2021
It is only 1 and half month that we purchased 2 Wanli tires. We only had 1!trip for 425km and the tires had several lumps. We brought it to Wanli store because of the warranty but they ask for additional payment of Php 585.00 because of the 15% used . This is not fair because their warranty is not true at all. We will not purchase this brand anymore at all.

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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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