285/40R23 In Inches

What size tire is 285/40R23 in Inches?

The 285/40R23 equivalent to 32x11.2R23 in inches, as follow:

  • 32 inches (812mm) stand for the tire diameter, also referred to as the tire height
  • 11.2 inches (285mm) is the tire width, this may also know as the section width
  • 23 inches (584mm) represent the rim diameter or called the wheel diameter that can be mounted on.
InchesMetric
Tire Diameter32"812 mm
Tread Width11.2"285 mm
Rim Diameter23"584 mm
Sidewall Height4.5"114 mm
Circumference100.5"2553 mm
Revolutions631 revs/mile392 revs/km
tire diameter
11.2"
32"
Tire Side
Tire Circumference
100.5"
23"
4.5"
631 Revs/Mile

What is 285/40R23 tire diameter?

The 285/40R23 has an overall diameter of 32 inches or 812 mm tall (Measurement of a tire’s outside diameter through its exact center when inflated with no load.)

How wide is a 285/40R23 tire’s width?

The 285/40R23 has a width of 11.2 inches or 285 mm wide. This is the measurement of the tire at its thickest point, the distance between the outer sidewall’s widest point and the inner sidewall’s widest point. This physical width of the tire can change if the tire is mounted on a wheel slightly wider or narrower than the size indicated by the rim width.

What is a 285/40R23 tire sidewall height?

The 285/40R23 has a sidewall height of 4.5 inches or 114 mm tall. It’s measured from the rim to the outer edge of the tire.

What size rim do you need for 285/40R23?

The 285/40R23 tire has a size rim of 23 inches or 584 mm. This number represents the distance between the two bead seat areas where the tire is sealed onto the wheel.

How many revolutions for 285/40R23 per mile or kilometer?

The 285/40R23 performs 631 revolutions per mile or 392 revolutions per kilometer. Revolutions per mile indicate the number of times a tire revolves while it covers the distance of one mile/kilometer

How about 285/40R23 tire circumference?

The circumference of 285/40R23 is 100.5 inches or 2553 mm.

What’s wider or narrow than 285/40R23 is acceptable?

You can replace the 285/40R23 tires that are within ±3% of the overall tire diameter. In this case, it’s between 31 and 33 inches (788mm to 836 mm). Check our tire size chart here or the tire size calculator tool here to find your size.


Tire Size Chart for 23" Wheels:

28″ Tire Diameter

29″ Tire Diameter

30″ Tire Diameter


31″ Tire Diameter

32″ Tire Diameter

*Disclaimer: The information provided on the tire size is for general informational purposes only. We recommend that you consult a certified tire specialist or National Highway Traffic Safety Administration (NHTSA) sets specific guidelines for tires used on vehicles.


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Jamie Hicks

Sullivan Kane

Tire Technician at TireSizesCalculator

Sullivan is a Tire Technician specializing in tire repair at TireSizesCalculator. With over 6 years of experience in the industry, Sullivan has become an expert in tire repair, maintenance & installation.


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