235/55R20 In Inches

What size tire is 235/55R20 in Inches?

The 235/55R20 equivalent to 30.2x9.3R20 in inches, as follow:

  • 30.2 inches (767mm) 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
  • 20 inches (508mm) represent the rim diameter or called the wheel diameter that can be mounted on.
InchesMetric
Tire Diameter30.2"767 mm
Tread Width9.3"235 mm
Rim Diameter20"508 mm
Sidewall Height5.1"129 mm
Circumference94.9"2410 mm
Revolutions668 revs/mile415 revs/km
tire diameter
9.3"
30.2"
Tire Side
Tire Circumference
94.9"
20"
5.1"
668 Revs/Mile

What is a 235/55R20 tire width?

The 235/55R20 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 inner sidewall’s widest point and the outer 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.

How big is a 235/55R20 tire’s height?

The overall diameter of a 235/55R20 is 30.2 inches or 766 mm tall (measurement of a tire’s outside diameter through its exact center when inflated with no load.

What size rim do I need for 235/55R20?

The size rim of a 235/55R20 tire is 20 inches or 508 mm tall. This number represents the distance between the two bead seat areas where the tire is sealed onto the wheel.

How tall is a 235/55R20 tire sidewall’s height?

The sidewall height of a 235/55R20 is 5.1 inches or 129 mm tall. It’s measured from the wheel rim to the top of the tread, expressed as a percentage of tire width.

What about 235/55R20 tire circumference?

235/55R20 tire has a circumference of 94.9 inches or 2410 mm

How many revolutions for 235/55R20 per mile & kilometer?

The 235/55R20 performs 415 revolutions per kilometer or 668 revolutions per mile. Revolutions per mile indicate the number of times a tire revolves while it covers the distance of one mile/kilometer

What’s wider or narrow than 235/55R20 is acceptable?

You can replace the 235/55R20 tires that are within ±3% of the overall tire diameter. In this case, it’s between 29.3 and 31.1 inches (743mm to 789 mm). Check our tire size chart here or the tire size calculator tool here to find your size.


Tire Size Chart for 20" Wheels:

25″ Tire Diameter

26″ Tire Diameter

27″ Tire Diameter


28″ Tire Diameter

29″ Tire Diameter

30″ Tire Diameter


31″ Tire Diameter

32″ Tire Diameter

33″ Tire Diameter


34″ Tire Diameter

35″ Tire Diameter

36″ Tire Diameter

37″ Tire Diameter

39″ 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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