What is the diameter of a 15-24 tire?

2 Answers
MacIsabella
07/29/25 4:31am
15-24 tire diameter is 18. The calculation formula for car tire diameter is: Tire diameter equals rim diameter plus tire width multiplied by aspect ratio multiplied by 2. Since different vehicle models are equipped with tires of different size specifications, the diameter of car tires will also vary. Generally, the diameter range of tires is 60 to 80 centimeters. If you want to know the diameter of a tire, you first need to understand the size of the car tire. Tire usage precautions: Note that when the tire pressure is insufficient, check the air leakage area of the outer or inner tire. For tubeless tires, inspect the damaged area on the tire body and repair it promptly. The best repair method is to use a special cold patch for tubeless tires. Try to avoid using tire plugs and self-sealing liquids to prevent tearing and corrosion of the wound, which could lead to premature tire damage.
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James
08/12/25 8:14am
When it comes to the 15-24 tire, I think most people might be referring to a wheel diameter of 15 inches and an overall diameter of approximately 24 inches. But honestly, this type of notation isn't standard. Standard tires, like 195/65R15, indicate a width of 195 millimeters, an aspect ratio of 65%, and a wheel diameter of R15. To calculate the overall diameter, here's how I'd do it: convert the width to inches by dividing by 25.4 (195/25.4≈7.68 inches), calculate the sidewall height by multiplying the width by the aspect ratio percentage and dividing by 100 (195×0.65=126.75 millimeters, converting to inches≈5 inches), and then the overall diameter is the wheel diameter plus twice the sidewall height (15+10=25 inches). On a 15-inch wheel, typical tire diameters range from about 24 to 26 inches. The '15-24' sounds like a custom or niche application, such as for certain ATVs or older trailer tires, but actual measurements might show significant differences. When choosing tires, it's crucial to ensure the diameter matches the vehicle's specifications—otherwise, the speedometer will be off, and the suspension could suffer. I learned this the hard way when I was younger and went for oversized wheels, ending up with a mess. Now, I'm more careful when helping my son pick tires. Regularly checking tire wear can prevent accidents, especially before long trips.
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