How big is a 245/40R18 tire’s height?
The overall diameter of a 245/40R18 is 25.7 inches or 653 mm tall (measurement of a tire’s outside diameter through its exact center when inflated with no load.
How wide is a 245/40R18 tire’s width?
The 245/40R18 has a width of 9.6 inches or 245 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 245/40R18 tire sidewall height?
The 245/40R18 has a sidewall height of 3.9 inches or 98 mm tall. It’s measured from the rim to the outer edge of the tire.
What size rim do you need for 245/40R18?
The 245/40R18 tire has a size rim of 18 inches or 457 mm. This number represents the distance between the two bead seat areas where the tire is sealed onto the wheel.
How many revolutions for 245/40R18 per mile or kilometer?
The 245/40R18 performs 785 revolutions per mile or 488 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 245/40R18 tire circumference?
The circumference of 245/40R18 is 80.7 inches or 2050 mm.
What’s wider or narrow than 245/40R18 is acceptable?
You can replace the 245/40R18 tires that are within ±3% of the overall tire diameter. In this case, it’s between 24.9 and 26.5 inches (633mm to 673 mm). Check our tire size chart here or the tire size calculator tool here to find your size.