305/70R15 In Inches

What size tire is 305/70R15 in Inches?

The 305/70R15 equivalent to 31.8x12R15 in inches, as follow:

  • 31.8 inches (808mm) 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
  • 15 inches (381mm) represent the rim diameter or called the wheel diameter that can be mounted on.
Diameter31.8"808 mm
Tread Width12"305 mm
Rim Diameter15"381 mm
Sidewall Height8.4"214 mm
Circumference100.2"2545 mm
Revolutions632"393 mm
tire diameter
Tire Side
Tire Circumference
632 Revs/Mile

How big is a 305/70R15 tire’s height?

The overall diameter of a 305/70R15 is 31.9 inches or 809 mm tall (measurement of a tire’s outside diameter through its exact center when inflated with no load.

How wide is a 305/70R15 tire’s width?

The 305/70R15 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 305/70R15 tire sidewall height?

The 305/70R15 has a sidewall height of 8.4 inches or 214 mm tall. It’s measured from the rim to the outer edge of the tire.

What size rim do you need for 305/70R15?

The 305/70R15 tire has a size rim of 15 inches or 381 mm. This number represents the distance between the two bead seat areas where the tire is sealed onto the wheel.

How many revolutions for 305/70R15 per mile or kilometer?

The 305/70R15 performs 632 revolutions per mile or 393 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 305/70R15 tire circumference?

The circumference of 305/70R15 is 100.2 inches or 2545 mm.

What’s wider or narrow than 305/70R15 is acceptable?

You can replace the 305/70R15 tires that are within ±3% of the overall tire diameter. In this case, it’s between 30.9 and 32.9 inches (785mm to 833 mm). Check our tire size chart here or the tire size calculator tool here to find your size.

Tire Size Chart for 15" Wheels:

19″ Tire Diameter

20″ Tire Diameter

21″ Tire Diameter

22″ Tire Diameter

23″ Tire Diameter

24″ Tire Diameter

25″ Tire Diameter

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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