205/40R18 in Inches

205/40R18 tire size conversion to inches with detailed visualization of tire height, width, diameter, rim size and more.

What is 205/40R18 in inches?

When we convert 205/40R18 to inches, it is equivalent to 24.4x8.1R18. Let us break down the tire size dimensions for better understanding. 8.1 inches or 205 mm stand for section width, or width of the tire tread. 24.4 inches or 621 mm represent the overall diameter of the tire, or tire height. 18 inches is the rim diameter, or the diameter of the wheel the tire can be mounted on.

205/40R18 Section Width
205/40R18 Tire Side
Tire Circumference
827 Revs/Mile
Metric Inches
Overall Diameter 621 mm 24.4"
Tread Width 205 mm 8.1"
Rim Diameter 457 mm 18"
Sidewall Height 82 mm 3.2"
Circumference 1950 mm 76.6"
Revolutions 513 per km 827 per mile
Best Prices on 205/40R18 Tires
TireRack from $174.71
Discount Tire from $156.00
Priority Tire from $85.93
Simple Tire from $105.96

What is 205/40R18 tire width?

205/40R18 tire has a width of 8.1 inches or 205 mm that reflects the measurement of tire's width from its inner sidewall to its outer sidewall at the widest point (excluding decorations, protective ribs or raised letters). Tire width is also called tread width, section width or cross section width. Tire width should be measured without any load placed upon the tire after it has been properly inflated and mounted on its industry assigned measuring rim.

What is 205/40R18 tire height?

205/40R18 tire has an overall diameter of 24.4 inches or 621 mm that represents the outer diameter of the tire or tire height.

What is 205/40R18 tire sidewall height?

205/40R18 tire has a sidewall height of 3.2 inches or 82 mm which is the measurement of tire sidewall from the wheel rim to the top of tire tread. Tire sidewall height or "profile" depends on aspect ratio - lower aspect ratio means lower tire profile.

What is 205/40R18 rim diameter?

Rim or wheel diameter is generally measured in inches, representing the size of the wheel the tire can be mounted on. 205/40R18 tire can be mounted on 18 inch wheels.

What is 205/40R18 tire circumference?

205/40R18 tire has a circumference of 76.6 inches or 1950 mm that represents the outer perimeter of the tire.

How many revolutions 205/40R18 tire makes?

Tire revolutions indicate the number of times a tire revolves while it covers the distance of a mile or a kilometer. 205/40R18 tire completes 827 revolutions per mile or 513 revolutions per kilometer.

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