Tire Size 245/65r18 in inches

The tire size 245/65R18 is equivalent to 30.5×9.6R18 in inches, has a diameter of 30.5 inches, a section width of 9.6 inches, a wheel diameter of 18 inches, and is approved to be mounted on 7.0-8.5 inch wide wheels. This popular tire size can fit various vehicles, and it’s essential to understand its specifications and features.

245/65r18 in inches

Use this Table chart to grasp intricate measurements in inches and millimeters all at once.

Feature Inches Metric
Tire Diameter 30.5 775.7
Section Width 9.6 245
Rim Height 18 457
Sidewall Height 6.3 159.3
Circumference 95.9 2436.9
Revolutions 661 per mile 411 per km
Rim Width Range 7.0-8.5 177.8 – 215.9

How Tall Is A 245/65R18 Tire?

The tire height of the 245/65R18 tire size is 30.5 inches, equivalent to 775.7 millimeters. This measurement refers to the overall diameter of the tire, which can influence how much ground clearance your vehicle has. Larger diameter tires can offer better off-road performance due to increased clearance and better ability to roll over obstacles.

What Is the 245/65R18 Width In Inches?

The tread width of the 245/65R18 tire size is 9.6 inches or 245 millimeters. Tread width affects the footprint of the tire, the area that contacts and interacts with the road surface. This can impact a variety of factors, including road grip, fuel efficiency, and how the vehicle handles in different driving conditions.

What Is the 245/65R18 Sidewall Height?

The 245/65R18 tire’s sidewall height is 6.3 inches, which equates to 159.3 millimeters. The sidewall height, or aspect ratio, is a percentage of the tire’s width. It can impact ride quality, with taller sidewalls usually providing a smoother ride as they can better absorb impacts from bumps and potholes.

What Is the 245/65R18 Tire Circumference?

The circumference of the 245/65R18 tire size is 95.9 inches, which is equivalent to 2436.9 millimeters. The circumference of a tire affects the speedometer reading of your vehicle. Larger circumference tires will have a higher speed reading compared to smaller ones, given the same rotational speed.

What Is the 245/65R18 Revolutions Per Mile?

For the 245/65R18 tire size, there are approximately 661 revolutions per mile or 411 per kilometer. This measure relates to how many times the tire will rotate on a one-mile or one-kilometer journey. This information is significant for assessing fuel economy and tire wear.

What Is the 245/65R18 Rims Size?

For the 245/65R18 tire size, the rim diameter is 18 inches, which equates to 457 millimeters. Furthermore, these tires are approved to be mounted on rims with widths ranging from 7.0 to 8.5 inches (177.8 to 215.9 millimeters). Matching your tire size to the appropriate rim size is critical to ensure optimal performance and safety.

Fitment Guide
This table will guide you on which vehicles the 245/65R18 tire size can suit. Factors like tire size, weight, and manufacturer specifications determine vehicle tire compatibility. Please consult your vehicle’s manual or a tire professional to confirm fitment.

Brand Name Model
DODGE Durango (2004 – 2009)
GMC Canyon (2009 – 2012)

Replacement Tire Size
Replacement tires have to be within 3% of the diameter of the original tires to maintain accurate speedometer readings and proper vehicle operation. Consult a tire professional or use a tire size calculator to ensure you choose a suitable replacement tire.

Tire Size Overall Diameter Difference
165/90R18 29.7″ (755 mm) -2.6%
275/55R18 29.9″ (759 mm) -2.1%
255/60R18 30.0″ (763 mm) -1.5%
235/65R18 30.0″ (763 mm) -1.5%
285/55R18 30.4″ (771 mm) -0.5%
175/90R18 30.4″ (773 mm) -0.3%
265/60R18 30.5″ (775 mm) 0%
275/60R18 31.0″ (787 mm) 1.5%
235/70R18 31.0″ (787 mm) 1.5%
255/65R18 31.1″ (789 mm) 1.8%
225/75R18 31.3″ (795 mm) 2.6%

Our Observation
In our experience, the 245/65R18 tire size offers a balance of performance, fuel efficiency, and comfort. It’s a standard size for many mid-size SUVs and pickups, thanks to its large diameter and width, offering good road grip and a comfortable ride. However, as with any tire, performance will also depend on the tire’s brand, model, and tread pattern.

Leave a Comment

Your email address will not be published. Required fields are marked *

Scroll to Top