Tire Size Chart

When it comes to purchasing new tires for your vehicle, navigating through the multitude of tire sizes can be a daunting task. The alphanumeric codes and numerical values can leave even the most experienced drivers scratching their heads. However, understanding tire sizes is crucial for ensuring the safety, performance, and efficiency of your vehicle. In this article, we will delve into the intricacies of tire sizes, decoding the numbers and letters to help you make an informed decision.

The tire size is not a random assortment of numbers and letters but a standardized code, developed by organizations like the Tire and Rim Association and the European Tyre and Rim Technical Organization. It ensures that tires are manufactured to common sizes, fitting different types of vehicles worldwide.

There are two principal tire size systems: Metric (or European) and Flotation (or American). The metric system is more commonly used globally and utilizes millimeters for measurements. In contrast, the flotation system often measures tire width in inches.

The dimensions of a tire significantly impact the vehicle's performance. A wider tire provides more grip but may decrease fuel efficiency due to increased rolling resistance. Conversely, a narrower tire can improve fuel economy but might offer less traction. The tire's aspect ratio also influences performance. A lower aspect ratio (known as low profile tires) can provide better handling and responsiveness. Still, it might compromise ride comfort due to the reduced sidewall height. Lastly, the wheel diameter can affect performance. Larger wheels can make your vehicle look more aesthetically pleasing and possibly offer better handling. However, they might also lead to increased fuel consumption, slower acceleration, and a less comfortable ride.

Selecting the correct tire size is crucial, and one should adhere to the vehicle manufacturer's specifications found in the vehicle's owner manual or the tire placard on the vehicle. Using the wrong tire size can lead to decreased fuel efficiency, compromised handling, and potential damage to the vehicle.

Select tire size to see its dimensions in both metric and inches, compatible sizes, and vehicles that can be fit with it.

All listed guides, data and/or calculations are for informational purposes only. Tire-Sizes.com does not warrant or make any representations regarding the accuracy of or the results of the use of this information.