155/65R15 in inches

Diving into the specifics tire size 155/65R15 in inches and help you to make informed decisions for your next tire purchase.

/ 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 155/65R15 tire size is characterized by an overall diameter of 22.9 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 155/65R15 tire has a tread or section width of 6.1 inches. This dimension represents the distance between one sidewall to the other, signifying the contact area with the road surface.

Tire Circumference

The 155/65R15 tire has a circumference of 72 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 155/65R15 tires feature a sidewall height of 4 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 155/65R15 tire size completes around 879.4 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 155/65R15 tires is 15 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 155/65R15 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 155/65R15 Mean?

The term “155/65R15” refers to the size and specifications of a tire. Here’s a breakdown of what each part of the designation means:

  • 155: This number represents the width of the tire in millimeters. In this case, the tire is 155 millimeters wide from sidewall to sidewall.
  • 65: 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 65, meaning the sidewall height is 65% 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.
  • 15: 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 155/65R15 is a radial tire that is 155 millimeters wide, with a sidewall height that is 65% of the width, and it is designed to fit a 15-inch wheel.

155/65R15 in inches

What Is 155/65R15 In Inches?

The tire size 155/65R15 can be expressed in inches as approximately 6.1 inches wide, 4 inches tall in sidewall, and designed to fit a 15-inch wheel rim. The 155/65R15 also has a circumference of 72 inches and It completes 879.4 revolutions per mile.

155/65R15 Equivalent

The tire size 155/65R15 is equivalent with a size of 22.9x6.1R15 in inches. This correlation is pivotal for precision in tire selection and optimal vehicle performance.

How Tall Is A 155/65R15 Tire?

The height of a 155/65R15 tire, expressed through its diameter, is approximately 22.9 inches (582.5 mm). In short, A 155/65R15 tire size is 22.9 inches (582.5 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 155/65R15 Tire?

The width of a 155/65R15 tire is 6.1 inches (155 millimeters). The first number in the tire size (155) represents the tire’s nominal width in millimeters from sidewall to sidewall when mounted on a specified width wheel. Therefore, the 155/65R15 tire size is 6.1 inches (155 mm) wide.

What Size Rim For 155/65R15?

The size of the rim for a 155/65R15 tire is 15 inches in wheel diameter. In the tire size 155/65R15, the number “15” at the end indicates the diameter of the wheel (rim) in inches that the tire is designed to fit. The rim width range for this tire is typically 4.5-5.5″.

Replacement Tire Sizes

New tires must match the original tire’s overall diameter within a 3% range. If your tire size is 155/65R15, take a look at the options provided in the table below to find suitable alternatives.

Tire SizeOverall DiameterDifference
155/60R1522.3″ (567 mm)-2.7%
185/50R1522.3″ (567 mm)-2.7%
145/65R1522.4″ (569 mm)-2.4%
135/70R1522.5″ (571 mm)-2.1%
275/35R1522.6″ (573 mm)-1.7%
175/55R1522.6″ (573 mm)-1.7%
215/45R1522.6″ (575 mm)-1.4%
195/50R1522.7″ (577 mm)-1%
245/40R1522.7″ (577 mm)-1%
165/60R1522.8″ (579 mm)-0.7%
125/80R1522.9″ (581 mm)-0.3%
225/45R1523″ (583 mm)0%
185/55R1523″ (585 mm)0.3%
205/50R1523.1″ (587 mm)0.7%
295/35R1523.1″ (587 mm)0.7%
175/60R1523.3″ (591 mm)1.4%
235/45R1523.3″ (593 mm)1.7%
165/65R1523.4″ (595 mm)2.1%
195/55R1523.4″ (595 mm)2.1%
135/80R1523.5″ (597 mm)2.4%
215/50R1523.5″ (597 mm)2.4%
155/70R1523.6″ (599 mm)2.7%

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