125/80R12 In Inches

What size tire is 125/80R12 in Inches?

The 125/80R12 equivalent to 19.9x4.9R12 in inches, as follow:

  • 19.9 inches (505mm) stand for the tire diameter, also referred to as the tire height
  • 4.9 inches (125mm) is the tire width, this may also know as the section width
  • 12 inches (305mm) represent the rim diameter or called the wheel diameter that can be mounted on.
Diameter19.9"505 mm
Tread Width4.9"125 mm
Rim Diameter12"305 mm
Sidewall Height3.9"100 mm
Circumference62.5"1588 mm
Revolutions1014"630 mm
tire diameter
Tire Side
Tire Circumference
1014 Revs/Mile

How big is a 125/80R12 tire’s height?

The overall diameter of a 125/80R12 is 19.9 inches or 505 mm tall (measurement of a tire’s outside diameter through its exact center when inflated with no load.

How wide is a 125/80R12 tire’s width?

The 125/80R12 has a width of 4.9 inches or 125 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 125/80R12 tire sidewall height?

The 125/80R12 has a sidewall height of 3.9 inches or 100 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 125/80R12?

The 125/80R12 tire has a size rim of 12 inches or 305 mm. This number represents the distance between the two bead seat areas where the tire is sealed onto the wheel.

How many revolutions for 125/80R12 per mile or kilometer?

The 125/80R12 performs 1014 revolutions per mile or 630 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 125/80R12 tire circumference?

The circumference of 125/80R12 is 62.5 inches or 1588 mm.

What’s wider or narrow than 125/80R12 is acceptable?

You can replace the 125/80R12 tires that are within ±3% of the overall tire diameter. In this case, it’s between 19.3 and 20.5 inches (490mm to 520 mm). Check our tire size chart here or the tire size calculator tool here to find your size.

Tire Size Chart for 12" Wheels:

19" Tire Diameter

20" Tire Diameter

21" Tire Diameter

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