What Size Tire Is 265/75r15 In Inches?
The 265/75R15 tire size can be converted to the following measurements in inches:
- Diameter of the tire: 30.6 inches
- Tire width: 10.4 inches
- Sidewall: 7.8 inches (this is the distance between the rim of the wheel and the outer edge of the tire’s tread)
- Diameter of the wheel: 15 inches
Detailed Explanation
The size 265/75R15 refers to a tire with a width of 265 millimeters, an aspect ratio (or sidewall height as a percentage of the width) of 75%, and a diameter of 15 inches.
Diameter Of The Tire:
To calculate the tire’s diameter, we need to consider the sidewall height and the wheel diameter. The formula for calculating the diameter of a tire is:
- Diameter = (sidewall height x 2) + wheel diameter
To calculate the sidewall height, we can use the following formula:
- Sidewall height = width x aspect ratio / 100
- Substituting the values for the 265/75R15 tire size, we get:
- Sidewall height = 265 x 75 / 100 = 198.75 mm
To convert millimeters to inches, we need to divide by 25.4:
- Sidewall height = 198.75 / 25.4 = 7.82 inches (rounded to the nearest hundredth)
Substituting this value and the wheel diameter of 15 inches into the formula for the diameter of the tire, we get:
- Diameter = (7.82 x 2) + 15 = 30.64 inches (rounded to the nearest hundredth)
Tire Width:
The tire width is given as 265 millimeters, which is equivalent to 10.43 inches (rounded to the nearest hundredth). We can convert millimeters to inches using the same formula as before:
- 1 millimeter = 0.0393701 inches
- Tire width = 265 x 0.0393701 = 10.43 inches (rounded to the nearest hundredth)
Sidewall:
- The sidewall height is calculated earlier as 7.82 inches (rounded to the nearest hundredth).
Diameter Of The Wheel:
- The diameter of the wheel is given as 15 inches.
Therefore, the tire size 265/75R15 indicates a tire with a width of 10.43 inches, a sidewall height of 7.82 inches, and an overall diameter of 30.64 inches.
| Tire Height (Diameter) | 30.6 in | 779 mm |
| Wheel Size | 15 in | 381 mm |
| Sidewall Height | 7.8 in | 199 mm |
| Tire Width | 10.4 in | 265 mm |
| Tire Circumference | 96.3 in | 2,446 mm |
| Revolutions per Mile | 658 | |
| Revolutions per Kilometer | 408.9 | |
What Does 265/75r15 Mean?
- 265: This number refers to the width of the tire in millimeters. In this case, the tire is 265 millimeters wide.
- 75: This number represents the tire’s aspect ratio, which is the ratio of the tire’s height to its width. Specifically, the aspect ratio is 75% for this tire. This means that the tire’s sidewall height is 75% of its width.
- R: This letter stands for “radial,” meaning the tire has radial construction. Radial tires are the most common type of tire today, and they have a layer of cords that run perpendicular to the tire’s tread.
- 15: This number refers to the diameter of the wheel in inches. In this case, the tire is designed to fit on a 15-inch wheel.
So, the tire size 265/75R15 indicates a tire that is 265 millimeters wide, has an aspect ratio of 75%, has radial construction, and is designed to fit on a 15-inch wheel.
Frequently Asked Questions
What Vehicles Can Use A 265/75r15 Tire?
The 265/75R15 tire size is commonly used on light trucks, SUVs, and older full-size pickup trucks.
What Is The Load Capacity Of A 265/75r15 Tire?
The load capacity of a 265/75R15 tire can vary depending on the specific tire model and its load index rating. Generally, a typical 265/75R15 tire can handle a load capacity of around 2,535 pounds.
What Is The Speed Rating Of A 265/75r15 Tire?
The speed rating of a 265/75R15 tire can vary depending on the specific tire model. Most 265/75R15 tires have a speed rating of either S (112 mph) or T (118 mph).
Can I Use A 265/75r15 Tire Instead Of A 31×10.5r15 Tire?
Yes, a 265/75R15 tire can be used as a substitute for a 31×10.5R15 tire, as they are very similar in size.
What Is The Difference Between A 265/75r15 And A 235/75r15 Tire?
Their width is the main difference between a 265/75R15 and a 235/75R15 tire. A 265/75R15 tire is wider than a 235/75R15 tire by 30 millimeters.
How Long Does A 265/75r15 Tire Last?
A: The lifespan of a 265/75R15 tire can vary depending on many factors, such as the specific tire model, driving habits, and road conditions. Generally speaking, most tires this size can last between 40,000 and 60,000 miles.
Are There Any Downsides To Using A 265/75r15 Tire?
One potential downside of using a 265/75R15 tire is that it may be slightly more expensive than smaller tire sizes. It may also have a slightly higher rolling resistance, leading to lower fuel efficiency.
Can I Use A 265/75r15 Tire In The Snow?
Yes, a 265/75R15 tire can be used in the snow. However, choosing a tire specifically designed for winter or all-season use is vital if you live in an area with heavy snowfall.
