Tire Size 32×11.50r15 in Metric
Have you ever wondered what the cryptic numbers and letters on your vehicle’s tires mean? What about the size 32×11.50r15, seen commonly on off-road trucks and sport utility vehicles?
The answers to these questions are more interesting and valuable than you might think, especially regarding tire replacements and vehicle performance.
Dimension Breakdown
Let’s start by breaking down the 32×11.50r15 tire size:
- 32 refers to the tire’s overall diameter in inches.
- 11.50 is the tire width, also in inches.
- R stands for Radial, indicating the tire’s construction type.
- 15 represents the wheel diameter the tire is designed to fit, measured in inches.
32×11.50r15 in inches
| Specification | Inches |
|---|---|
| Tire Diameter | 32.0″ |
| Tire Section Width | 11.5″ |
| Rim Width Range | 15″ x 8-10″ |
| Sidewall Height | 8.5″ |
| Circumference | 100.5″ |
| Revs/Mile | 631 |
Conversion Process
Converting these measurements from inches to millimeters can be straightforward with a bit of math.
- Overall Diameter: To convert the overall diameter from inches to millimeters, multiply by 25.4 (the number of millimeters in an inch). For our 32″ tire, that would be 32*25.4 = 812.8 mm.
- Tire Width: Similarly, converting the width from 11.50″ to millimeters, we get 11.50*25.4 = 292.1 mm.
- Wheel Diameter: The 15″ wheel diameter translates to 381 mm.
- Sidewall Height: This is calculated as (Overall Diameter – Wheel Diameter)/2. For the 32×11.50r15 tire, this would be (812.8 mm – 381 mm)/2 = 215.9 mm.
- Aspect Ratio: This is the ratio of the sidewall height to the tire width, expressed as a percentage. For our tire, the aspect ratio is (215.9/292.1)*100 = 74%.
Finding a Close Metric Equivalent
To find a close metric equivalent, you’d look for a tire where the first number (width in mm) is close to 292, the second number (aspect ratio) is near 74, and the last number (rim diameter in inches) is 15. So, a 285/75R15 tire might be a close metric equivalent to a 32×11.50R15.
Replacement Tire Size
| Tire Size | Overall Diameter | Difference |
|---|---|---|
| 315/60R15 | 29.9″ (759 mm) | -2.8% |
| 345/55R15 | 30″ (761 mm) | -2.6% |
| 255/75R15 | 30″ (763 mm) | -2.3% |
| 295/65R15 | 30.1″ (765 mm) | -2% |
| 275/70R15 | 30.2″ (767 mm) | -1.8% |
| 325/60R15 | 30.4″ (771 mm) | -1.3% |
| 265/75R15 | 30.7″ (779 mm) | -0.3% |
Practical Applications
The 32×11.50r15 tire size is popular among off-road enthusiasts and is often seen on 4×4 trucks and SUVs. Their larger diameter and width provide increased traction and stability, essential for off-road driving conditions.
For example, a Jeep Wrangler owner might choose this size for their vehicle to tackle challenging terrains and enjoy a smoother ride.
What Is Equivalent To A 32×11.50r15?
A tire marked as 32×11.50R15 would theoretically correspond to a metric measurement of 292/74/R15. Nonetheless, it’s critical to note that such a specific size is quite rare and typically not easily accessible in the marketplace. The metric size that most closely aligns with a 32×11.50R15, and is more commonly available, would be a 285/75R15.
How Tall Are 32×11.50r15?
As the first number in the specification “32×11.50R15” suggests, the tire’s diameter or height is 32 inches. This means, when the tire is fully inflated and without any load, it measures 32 inches from the ground to the top of the tire.
How Wide Is A 32×11.50r15 Tire?
The second number in the tire size “32×11.50R15” stands for the width of the tire. Therefore, a 32×11.50R15 tire has a width of 11.50 inches. This is the measurement of the tire’s cross-section from one sidewall to the other when viewed from above.
What Size Rim Fits a 32×11.50r15?
The last number in the tire size “32×11.50R15” indicates the diameter of the wheel that the tire is designed to fit. In this case, a 32×11.50R15 tire is made to fit a 15-inch diameter wheel or rim. When choosing a wheel for this tire, it’s crucial to ensure the wheel width also matches the tire width requirements to ensure a safe and effective fit.
Summary
Understanding the meaning of tire sizes, particularly the 32×11.50r15, and knowing how to convert these measurements to the metric system is invaluable for vehicle owners.
This knowledge can assist you in finding suitable tire replacements, understanding their impact on your vehicle’s performance, and even discussing your tire needs with professionals. So, the next time you look at those seemingly obscure numbers on your tires, remember they’re not as cryptic as they first appear.
Meet Caitlin McCormack, a Tire Size Expert and Blogger Passionate About Everything Related to Tires. With Years of Experience in the Tire Industry, Caitlin Has Become an Expert in Tire Sizes and Their Impact on Vehicle Performance.
