Best 175/40 R16 Tires. Rims & Conversion Info

175/40 R16 in inches

175/40 R16 tires' overall diameter is 21.5 inches, tire width is 6.9 inches, the tire can be mounted on 16 inches wheel and the circumference is 67.5". With that parameters, we can calculate that it will take approximately 938.7 revolutions per mile.

So the closest metric tire size of 175/40R16 existing size in inches is 31x10.50R16, which is 44.19% taller and 52.17% wider.

You can use our handy tire size calculator to compare 175/40 R16 vs 31x10.50R16.

175/40 R16 – what does it mean?

Parameter Meaning
175 The first number shows that the tire has a section width of 175 mm or approximately 6.9 inches.
40 The second number is the aspect ratio or sidewall height. In this case, it is 40%. It shows the height of the tire from the ground to the rim edge or the height of the tire's cross-section which is 40% of the width or ~ 70mm
R16 The letter R means this tire is radial. Most of all tires nowadays are radial. The number is the tire diameter in inches. It means that the tire will fit 16-inch wheels

If you want to know more about how to decipher information inscribed on your tires, including aspects such as the tire height, tire width, and the diameter of the wheel, this guide provides an in-depth look at how to read a tire sidewall. These measurements can reveal a wealth of information about your tire's specifications and suitability for your vehicle. Mastering these details will allow you to make informed decisions when buying or replacing your tires.