Everything we know about the 175/40 R19 tyre size: 1 owner reviews covering 0 miles of driving, and EU label data for the tyres you can actually buy in it.
A 175/40 R19 tyre is 175 mm wide, its sidewall is 40% of that width (70 mm) tall, and it fits a 19 inch wheel. That gives an overall diameter of roughly 623 mm.
| Section width | 175 mm |
|---|---|
| Sidewall height | 70 mm |
| Rim diameter | 19" (483 mm) |
| Overall diameter | ≈ 623 mm |
| Circumference | ≈ 1,956 mm |
| Revolutions per km | ≈ 511 |
| Revolutions per mile | ≈ 823 |
175/40R19 175/40 ZR19 175-40-19 175 40 19
Figures are calculated from the nominal size. A loaded, rolling tyre runs a few percent smaller, and true widths vary slightly between makes.
The most recent owner reviews fitted in this size, in their own words.
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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.
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Every test published as a Tyre Reviews test is run by Jonathan Benson, who has been testing tyres independently since 2007.