235/30R21 In Inches

What size tire is 235/30R21 in Inches?

The 235/30R21 equivalent to 26.5x9.3R21 in inches, as follow:

  • 26.5 inches (674mm) stand for the tire diameter, also referred to as the tire height
  • 9.3 inches (235mm) is the tire width, this may also know as the section width
  • 21 inches (533mm) represent the rim diameter or called the wheel diameter that can be mounted on.
Diameter26.5"674 mm
Tread Width9.3"235 mm
Rim Diameter21"533 mm
Sidewall Height2.8"71 mm
Circumference83.6"2123 mm
Revolutions758"471 mm
tire diameter
Tire Side
Tire Circumference
758 Revs/Mile

What is 235/30R21 tire diameter?

The 235/30R21 has an overall diameter of 26.6 inches or 675 mm tall (Measurement of a tire’s outside diameter through its exact center when inflated with no load.)

How wide is a 235/30R21 tire’s width?

The 235/30R21 has a width of 9.3 inches or 235 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 235/30R21 tire sidewall height?

The 235/30R21 has a sidewall height of 2.8 inches or 71 mm tall. It’s measured from the rim to the outer edge of the tire.

What size rim do you need for 235/30R21?

The 235/30R21 tire has a size rim of 21 inches or 533 mm. This number represents the distance between the two bead seat areas where the tire is sealed onto the wheel.

How many revolutions for 235/30R21 per mile or kilometer?

The 235/30R21 performs 758 revolutions per mile or 471 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 235/30R21 tire circumference?

The circumference of 235/30R21 is 83.6 inches or 2123 mm.

What’s wider or narrow than 235/30R21 is acceptable?

You can replace the 235/30R21 tires that are within ±3% of the overall tire diameter. In this case, it’s between 25.8 and 27.4 inches (655mm to 695 mm). Check our tire size chart here or the tire size calculator tool here to find your size.

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Tire Size Chart for 21" Wheels:

26″ Tire Diameter

27″ Tire Diameter

28″ Tire Diameter

29″ Tire Diameter

30″ Tire Diameter

31″ Tire Diameter

32″ Tire Diameter

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