What Size Tire Is 325/60R20 In Inches?
The tire size 325/60R20 refers to a tire with a width of 325 millimeters, an aspect ratio (or sidewall height as a percentage of the width) of 60%, and a diameter of 20 inches.
Here are the approximate measurements in inches:
- Diameter of the tire: Approximately 35.4 inches
- Tire width: Approximately 12.8 inches
- Sidewall height: Approximately 7.7 inches (calculated as a percentage of the tire’s width, which is 60% in this case)
- Diameter of the wheel: 20 inches
To calculate the diameter of the tire, we can use the same formula as mentioned above:
- Diameter = (2 x sidewall height x aspect ratio/100) + wheel diameter (in inches)
First, we need to calculate the sidewall height:
- Sidewall height = width x aspect ratio / 100
- Sidewall height = 325 x 60 / 100 = 195 mm
We can then convert the sidewall height to inches:
- Sidewall height = 195 mm / 25.4 = 7.7 inches
Now we can calculate the diameter of the tire:
- Diameter = (2 x sidewall height x aspect ratio/100) + wheel diameter (in inches)
- Diameter = (2 x 7.7 x 60/100) + 20
- Diameter = 35.4 inches (approximately)
Therefore, the 325/60R20 tire has an overall diameter of approximately 35.4 inches, a width of approximately 12.8 inches, a sidewall height of approximately 7.7 inches, and a wheel diameter of 20 inches. Please note that these are approximate measurements, and actual tire sizes can vary slightly depending on the brand and model of the tire.
Tire Height (Diameter) | 36.6 in | 931 mm |
Wheel Size | 20 in | 508 mm |
Sidewall Height | 8.3 in | 211 mm |
Tire Width | 12.8 in | 325 mm |
Tire Circumference | 115.1 in | 2,923 mm |
Revolutions per Mile | 550.5 | |
Revolutions per Kilometer | 342.1 |
What Is A 325/60R20 Equivalent To?
The tire size 325/60R20 is equivalent to several other tire sizes with the same overall diameter, width, and wheel diameter. Here are a few common equivalent tire sizes:
- 35×12.8R20: This tire size is equivalent in diameter and width to 325/60R20. The only difference is the aspect ratio, which is not specified in the 35×12.8R20 tire size.
- 335/55R20: This tire size has a slightly smaller sidewall height than 325/60R20, resulting in a slightly smaller overall diameter. However, the tire width and wheel diameter are the same, making it a close equivalent.
- 305/65R20: This tire has a slightly smaller width than 325/60R20, resulting in a slightly smaller overall diameter. However, the sidewall height and wheel diameter are similar, making it a close equivalent.
While these tire sizes are technically equivalent, there may be slight differences in performance, handling, and ride comfort between different tire models and brands. It’s important to choose a tire that meets the specific needs of your vehicle and driving conditions and to consult a professional if you need help deciding which tire size to choose.
FAQs
What Vehicles Use 325/60r20 Tires?
The 325/60R20 tire size is typically found on large pickup trucks and SUVs, such as the Ford F-250 and F-350, Chevrolet Silverado 2500 and 3500, and GMC Sierra 2500 and 3500.
What Does 325/60r20 Mean?
The first number (325) is the tire width in millimeters, the second number (60) is the aspect ratio (sidewall height as a percentage of the width), and the third number (20) is the wheel diameter in inches.
What Is The Overall Diameter Of A 325/60r20 Tire?
The overall diameter of a 325/60R20 tire is approximately 35.3 inches.
What Is The Section Width Of A 325/60r20 Tire?
The section width of a 325/60R20 tire is approximately 12.8 inches.
What Is The Load Capacity Of A 325/60r20 Tire?
The load capacity of a 325/60R20 tire varies depending on the tire’s speed rating and construction. However, most 325/60R20 tires have a load capacity of at least 3,000 pounds per tire.
Are There Any All-Terrain Or Mud-Terrain Options For 325/60r20 Tires?
Yes, several all-terrain and mud-terrain options are available for 325/60R20 tires, including the Nitto Terra Grappler G2, Toyo Open Country A/T III, and Mickey Thompson Baja ATZ P3.
Can I Replace A 325/60r20 Tire With A Different Size Tire?
Replacing a 325/60R20 tire with a different size tire is not recommended, as it can affect the vehicle’s handling and performance. Sticking the tire size recommended by the vehicle manufacturer is best.