265/70R18 (original) (raw)
265/70R18
265/70R18 Tire Size in Inches and Millimeters
265/70R18 tires have a diameter of 32.6" (829 mm), a tread width of 10.4" (265 mm), and a wheel diameter of 18" (457.2 mm).The sidewall of the tire is 7.3" (186 mm), and the tire's circumference is 102.4" (2603.1 mm). This means a 265/70R18 tire will make make 619 revolutions per mile, or 384 revolutions per kilometer.
| Spec | Inches | Metric |
|---|---|---|
| Diameter | 32.6" | 829 mm |
| Width | 10.4" | 265 mm |
| Wheel | 18" | 457.2 mm |
| Sidewall | 7.3" | 186 mm |
| Circum | 102.4" | 2603.1 mm |
| Revolutions | 619 per mile | 384 per km |
What Does 265/70R18 Mean?
The tire size 265/70R18 is a common size used on many trucks, SUVs, and other larger vehicles.
Here is what each part of the size designation represents:
- 265: This number represents the width of the tire in millimeters. In this case, the tire is 265 millimeters wide.
- 70: This number represents the aspect ratio of the tire, which is the height of the tire's sidewall as a percentage of its width. In this case, the sidewall height is 70% of the tire's width.
- R: This letter indicates the tire's construction type. “R” stands for radial construction, which is the most common type of tire construction today.
- 18: This number represents the diameter of the wheel that the tire is designed to fit on, in inches. In this case, the tire is designed to fit on a 18-inch wheel.
How To Convert 265/70R18 Into Inches
The 265/70R18 conversion is fairly simple. The first number in the tire size, 265, represents the width of the tire in millimeters. To convert this to inches, we divide 265 by 25.4 (since there are 25.4 millimeters in an inch). This gives us approximately 10.4 inches.
The second number in the tire size, 70, represents the aspect ratio or the height of the tire as a percentage of its width. To calculate the height in inches, we multiply 10.4 by 0.70, which gives us approximately 7.3 inches.
Finally, the last number in the tire size, 18, represents the diameter of the wheel rim in inches. Therefore, the tire size 265/70R18 can be expressed in inches as roughly 10.4 inches wide, 7.3 inches tall, and designed to fit a 18-inch wheel rim.
Frequently Asked Questions About 265/70R18 Tires
How tall is a 265/70R18 tire?
A 265/70R18 tire has an approximate height, also known as the overall diameter, of 32.6 inches (829 mm). This height can vary slightly depending on the brand and model of the tire, as well as the amount of air pressure in the tire.
How wide is a 265/70R18 tire?
A 265/70R18 tire has a width of approximately 10.4 inches (265 millimeters). The width of the tire is the first number in the tire size designation, which in this case is “265”. It’s important to note that the actual width of the tire may vary slightly depending on the brand and model of the tire, and the width may also be affected by the amount of air pressure in the tire.
Alternate 265/70R18 Replacement Tire Sizes
Upsizing your wheels or tires? Replacement tires must be within 3% of the diametor of the original tire. The following sizes fall within that range - click on any size to see detailed info about that tire and wheel combination.