Tire Size Calculator

A tire size calculator is a tool used to determine the appropriate size of tires for a vehicle. It is typically used when replacing tires, or when upgrading to a different size of tire. The calculator typically requires input of the vehicle’s make, model, and current tire size, and can provide options for alternative tire sizes that will fit the vehicle.

Some tire size calculators will also take into account the intended use of the vehicle, such as whether it will be primarily used for highway driving or off-roading, in order to provide more specific recommendations.

Tire Size Calculator

Comparison of Tire Size:

Tire SizeSection Width (mm)Aspect Ratio (%)Rim Diameter (inch)

Tire Conversion Chart:


Are 33 inch tires the same as 285?

33 inch tires and 285 tires are not the same. The 33 inch tires refer to the overall diameter of the tire, while the 285 refers to the width of the tire in millimeters. A tire labeled as 33×12.50R15 would be 33 inches in diameter and 12.50 inches in width, while a tire labeled as 285/70R17 would be 285 millimeters wide and 70% of the width is the sidewall height.

What Tire Size Can You substitute?

It depends on the make and model of your vehicle and the type of tires you are currently using. Generally, you can substitute a tire size that is within 3% of the original size. However, it is important to consult with a tire professional or the vehicle manufacturer to ensure that the substitute tire size is compatible and safe for your vehicle.

What does the 265 70R17 mean?

The 265 70R17 is a tire size designation.

  • The first number, 265, represents the width of the tire in millimeters.
  • The second number, 70, represents the aspect ratio, or the height of the sidewall as a percentage of the width.
  • The R means that it is a radial tire.
  • The last number, 17, represents the diameter of the wheel in inches.

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