245/45R17 in inches

Tire size specifications, like 245/45R17, provide vital information about a tire’s dimensions and capabilities. The tire size 245/45R17 is equivalent to 25.7×9.6R17 in inches.

/ R
Tire Height
Section Width
Sidewall Height
Rim Size
Tire 1 Front View
Tire 1 Side View
Tire 1 Wheel
circumference 1


Overall Diameter

The 245/45R17 tire size is characterized by an overall diameter of 25.7 inches, measured from one edge to the other. This measurement reflects the tire’s complete height when filled to the recommended pressure.

Tread Width

The 245/45R17 tire has a tread or section width of 9.6 inches. This dimension represents the distance between one sidewall to the other, signifying the contact area with the road surface.

Tire Circumference

The 245/45R17 tire has a circumference of 80.7 inches, representing the linear distance traveled in a single revolution. This measurement is crucial for determining speed, distance, and revolutions per minute (RPM).

Sidewall Height

The 245/45R17 tires feature a sidewall height of 4.3 inches. This measurement represents the vertical distance from the outer edge of the rim to the outer edge of the tire’s tread.

It plays a crucial role in defining the tire’s profile, impacting both ride comfort and handling attributes.

Revolutions Per Mile

The 245/45R17 tire size completes around 785.3 revolutions per mile. This metric signifies the full rotations the tire makes while covering one mile.

It’s important to grasp this value, as it plays a significant role in odometer readings, speed calculations, and aspects of fuel efficiency.

Wheel Size

The appropriate rim size for 245/45R17 tires is 17 inches in diameter. This detail becomes crucial when contemplating wheel replacement or upgrade, as it guarantees proper fitting of the tire onto the rim.

Construction Type

Finally, the 245/45R17 tires utilize a radial construction. In radial tire design, the internal layers or “plies” are oriented perpendicular to the direction of travel.

This configuration enhances heat dissipation and elevates overall performance, surpassing alternative construction methods.

What Does 245/45R17 Mean?

The term “245/45R17” refers to the size and specifications of a tire. Here’s a breakdown of what each part of the designation means:

  • 245: This number represents the width of the tire in millimeters. In this case, the tire is 245 millimeters wide from sidewall to sidewall.
  • 45: This number indicates the aspect ratio, which is the ratio of the tire’s sidewall height to its width. In this example, the aspect ratio is 45, meaning the sidewall height is 45% of the tire’s width.
  • R: This letter stands for “radial,” which is the most common type of tire construction. Radial tires have ply cords that run perpendicular to the direction of travel.
  • 17: This number represents the diameter of the wheel, in inches, on which the tire is designed to fit.

So, in summary, a tire with the designation 245/45R17 is a radial tire that is 245 millimeters wide, with a sidewall height that is 45% of the width, and it is designed to fit a 17-inch wheel.

What Is 245/45R17 In Inches?

The tire size 245/45R17 can be expressed in inches as approximately 9.6 inches wide, 4.3 inches tall in sidewall, and designed to fit a 17-inch wheel rim. The 245/45R17 also has a circumference of 80.7 inches and It completes 785.3 revolutions per mile.

245/45R17 Equivalent

The tire size 245/45R17 is equivalent with a size of 25.7x9.6R17 in inches. This correlation is pivotal for precision in tire selection and optimal vehicle performance.

How Tall Is A 245/45R17 Tire?

The height of a 245/45R17 tire, expressed through its diameter, is approximately 25.7 inches (652.3 mm). In short, A 245/45R17 tire size is 25.7 inches (652.3 mm) tall.

The height of the tire is subject to slight variations, determined by both the brand and model of the tire, in addition to the amount of air pressure it holds.

How Wide Is A 245/45R17 Tire?

The width of a 245/45R17 tire is 9.6 inches (245 millimeters). The first number in the tire size (245) represents the tire’s nominal width in millimeters from sidewall to sidewall when mounted on a specified width wheel. Therefore, the 245/45R17 tire size is 9.6 inches (245 mm) wide.

What Size Rim For 245/45R17?

The size of the rim for a 245/45R17 tire is 17 inches in wheel diameter. In the tire size 245/45R17, the number “17” at the end indicates the diameter of the wheel (rim) in inches that the tire is designed to fit.

Replacement Tire Sizes

New tires must match the original tire’s overall diameter within a 3% range. If your tire size is 155/70r12, take a look at the options provided in the table below to find suitable alternatives.

Tire SizeOverall DiameterDifference

What Does 225/45r17 Mean?

Starting with the basics, the tire size 225/45r17 is a numeric code that can be broken down into three main components. ‘225’ represents the tire’s width, ’45’ is the aspect ratio or profile, and ’17’ is the wheel diameter, all in millimeters.

Can I Use 225/45r17 Instead Of 225/50r17?

The feasibility of using a wider tire is contingent on several factors. One crucial guideline for changing tire sizes states that the overall diameter of the replacement tire should not deviate more than 3% from that of the original tire.

In comparing the tire sizes at hand, the 225/45r17 tire has an overall diameter of approximately 24.97 inches, whereas the 225/50r17 tire’s diameter measures around 25.86 inches.

The disparity between these two tire sizes amounts to roughly 0.89 inches, resulting in a diameter deviation of approximately 3.5%. This surpasses the allowable 3% variation, indicating that, based on this rule, a 225/50r17 tire would not be an appropriate replacement for a 225/45r17 tire.

This deviation in diameter could impact ground clearance and potentially cause tire damage. Consequently, it is advisable to exercise caution and seek professional guidance before proceeding with such a modification.

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