305/25R20 In Inches

What size tire is 305/25R20 in Inches?

The 305/25R20 equivalent to 26x12R20 in inches, as follow:

  • 26 inches (661mm) stand for the tire diameter, also referred to as the tire height
  • 12 inches (305mm) 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 Diameter26"661 mm
Tread Width12"305 mm
Rim Diameter20"508 mm
Sidewall Height3"76 mm
Circumference81.7"2075 mm
Revolutions776 revs/mile482 revs/km
tire diameter
12"
26"
Tire Side
Tire Circumference
81.7"
20"
3"
776 Revs/Mile

What is 305/25R20 tire diameter?

The 305/25R20 has an overall diameter of 26 inches or 660 mm tall (Measurement of a tire’s outside diameter through its exact center when inflated with no load.)

How wide is a 305/25R20 tire’s width?

The 305/25R20 has a width of 12 inches or 305 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 305/25R20 tire sidewall height?

The 305/25R20 has a sidewall height of 3 inches or 76 mm tall. It’s measured from the wheel rim to the top of the tread, expressed as a percentage of tire width.

What size rim do you need for 305/25R20?

The 305/25R20 tire has a size rim of 20 inches or 508 mm. This number represents the distance between the two bead seat areas where the tire is sealed onto the wheel.

How many revolutions for 305/25R20 per mile or kilometer?

The 305/25R20 performs 776 revolutions per mile or 482 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 305/25R20 tire circumference?

The circumference of 305/25R20 is 81.7 inches or 2075 mm.

What’s wider or narrow than 305/25R20 is acceptable?

You can replace the 305/25R20 tires that are within ±3% of the overall tire diameter. In this case, it’s between 25.2 and 26.8 inches (640mm to 680 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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