Tire Size 285/60r18 in inches

The tire size 285/60R18 is equivalent to 31.5×11.2R18 in inches, meaning the tire has a diameter of 31.5 inches, a width of 11.2 inches, and fits a 18-inch rim.

285/60r18 in inches

Gain simultaneous insights into measurements in inches and millimeters through the use of this Table chart.

Tire Diameter31.5799.2
Section Width11.2285
Rim Height18457
Sidewall Height6.7171
Revolutions399 per km641 per mile
Rim Width Range8.0-10.0203.2-254

How Tall Is A 285/60R18 Tire?

The Tire Height of the 285/60R18 tire size is 31.5 inches or 799.2 mm. This means that the tire’s height from the base of the tread to the topmost part of the tire when it is installed, inflated, and not under load is 31.5 inches.

This height plays a significant role in determining the ground clearance of the vehicle, impacting the vehicle’s ability to traverse different terrains.

What Is the 285/60R18 Width In Inches?

The 285/60R18 tire’s tread width is 11.2 inches or 285 mm. The tire’s width is measured from one end of the tire’s outer sidewall to the other.

This width contributes to the tire’s contact patch, or the tire’s area that actually makes contact with the road surface, which can affect traction, handling, and fuel efficiency.

What Is the 285/60R18 Sidewall Height?

The 285/60R18 tire’s sidewall height is 6.7 inches or 171 mm. The sidewall height is the measurement from the rim to the tread of the tire.

This attribute can impact ride comfort, as a larger sidewall can absorb more shock from bumps or potholes.

What Is the 285/60R18 Tire Circumference?

The circumference of the 285/60R18 tire size is 98.8 inches or 2510.8 mm. This is the distance around the outside of the tire.

The circumference is a factor in determining how a tire will affect the overall speed of the vehicle as well as fuel efficiency.

What Is the 285/60R18 Revolutions Per Mile?

For the 285/60R18 tire size, there are approximately 641 revolutions per mile. This specification is important for understanding your vehicle’s speedometer readings.

A tire with a larger overall diameter will have fewer revolutions per mile, meaning the speedometer might read slower than you’re actually going.

What Is the 285/60R18 Rims Size?

The 285/60R18 tire size, the rim diameter is 18 inches or 457 mm. Matching your tires to an appropriate rim size is crucial for the best performance, safety, and longevity. In this case, the tires are approved to be mounted on rims between 8.0 to 10.0 inches wide.

What Does 285/60R18 Mean?

The term “285/60R18” refers to the size and specifications of a tire. Here’s a breakdown of what each part of the designation means:

  • 285: This number represents the width of the tire in millimeters. In this case, the tire is 285 millimeters wide from sidewall to sidewall.
  • 60: 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 60, meaning the sidewall height is 60% 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.
  • 18: 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 285/60R18 is a radial tire that is 285 millimeters wide, with a sidewall height that is 60% of the width, and it is designed to fit a 18-inch wheel.

What Is 285/60R18 In Inches?

The tire size 285/60R18 can be expressed in inches as approximately 11.2 inches wide, 6.7 inches tall in sidewall, and designed to fit a 18-inch wheel rim.

This equates to a tire height of 31.5 inches. The 285/60R18 also has a circumference of 98.8 inches and It completes 641 revolutions per mile.

285/60R18 Equivalent

The tire size 285/60R18 is equivalent with a size of 31.5x11.2R18 in inches. This correlation is pivotal for precision in tire selection and optimal vehicle performance.

How Tall Is A 285/60R18 Tire?

The height of a 285/60R18 tire, expressed through its diameter, is approximately 31.5 inches (799.2 mm). In short, A 285/60R18 tire size is 31.5 inches (799.2 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 285/60R18 Tire?

The width of a 285/60R18 tire is 11.2 inches (285 millimeters). The first number in the tire size (285) represents the tire’s nominal width in millimeters from sidewall to sidewall when mounted on a specified width wheel. Therefore, the 285/60R18 tire size is 11.2 inches (285 mm) wide.

What Size Rim For 285/60R18?

The size of the rim for a 285/60R18 tire is 18 inches in wheel diameter. In the tire size 285/60R18, the number “18” at the end indicates the diameter of the wheel (rim) in inches that the tire is designed to fit.

Fitment Guide
This table will guide you on which vehicle makes and models the 285/60R18 tire can be fitted to. Given its specifications, it’s well-suited to vehicles like SUVs, light trucks, and some larger sedans.

Brand NameModel
DODGERam 2500 (2003 – 2009), Ram 3500 (2003 – 2009)
FAW TOYOTALand Cruiser (2016 – 2016), Land Cruiser Prado (2015 – 2017)
FORDF-250 (1973 – 1979)
LEXUSLX (2007 – 2023)
TOYOTA4Runner (1995 – 2002), Land Cruiser (2007 – 2023), Land Cruiser Prado (2009 – 2017)

Replacement Tire Size
Replacement tires must be within 3% of the original diameter to maintain accurate speedometer readings and vehicle handling.

The 285/60R18 size offers a good selection of replacement options for vehicles originally equipped with similar size tires.

Tire SizeOverall DiameterDifference

Our Observation
Having examined the details of the 285/60R18 tire size, it offers a good balance of size and performance for larger vehicles. The sizable diameter provides ample ground clearance, while the width delivers a substantial contact patch for reliable traction. The allowable rim width range also offers flexibility for those looking to customize their ride.

However, as always, drivers should consider their specific driving conditions and vehicle specifications before choosing a tire size. Ensure your choice complies with the manufacturer’s recommendations to guarantee safety and optimum performance.

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