What is a 315/40R18 tire width?
The 315/40R18 has a width of 12.4 inches or 315 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.
What is 315/40R18 tire diameter?
The 315/40R18 has an overall diameter of 27.9 inches or 709 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 315/40R18?
The size rim of a 315/40R18 tire is 18 inches or 457 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 315/40R18 tire sidewall’s height?
The sidewall height of a 315/40R18 is 4.3 inches or 126 mm tall. It’s measured from the wheel rim to the top of the tread, expressed as a percentage of tire width.
What about 315/40R18 tire circumference?
315/40R18 tire has a circumference of 87.7 inches or 2228 mm
How many revolutions for 315/40R18 per mile & kilometer?
The 315/40R18 performs 449 revolutions per kilometer or 723 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 315/40R18 is acceptable?
You can replace the 315/40R18 tires that are within ±3% of the overall tire diameter. In this case, it’s between 27.1 and 28.7 inches (688mm to 730 mm). Check our tire size chart here or the tire size calculator tool here to find your size.