What does the 30 mean in tire size?

The first number is your overall diameter of the tire. In this example the tire diameter or “height” is 33 inches tall. The second number represents the width of the tire. In most cases with inch measurement tires the width will have a . 50 decimal after the initial number.

What is a 285 tire in inches?

285 indicate 285/75/16, which is the metric size for 33 inches.

What is the actual size of a 31 inch tire?

The total diameter of the tire (from top to bottom). In this case, it’s 31 inches. The section width is the width of the tread from sidewall to sidewall. In this example, it’s 10.50 inches.

Are 33 tires the same as 285?

YES, 285 wide tires are the same as 33” tires although 285 is the tread width in millimeters and 33″ is the tire diameter. 285/75/16 is usually the accepted metric equivalent size for 33’s.