265/40R18 in Inches

Tire size 265/40R18 refers to the tire size in numbers and letters such as the first number “265” indicates the tire width in millimeters, the second number “40” indicates the aspect ratio of the tire and the last number indicates the diameter of the tire. A 265/40R18 tire in inches can be described as a tire with a width of about 10.4 inches, a sidewall height of about 4.2 inches, and it fits on a 18-inch wheel.

Converting 265/40R18 in Inches

265/40R18 inches mm
Tire Diameter 26.3 inches 669 mm
Tread Width 10.4 inches 265 mm
Rim Diameter 18 inches 457 mm
Sidewall Height 4.2 inches 106 mm
Circumference 82.6 inches 2101 mm
Revolutions 767 per mile 476 per km

Tire Size Calculator

The Tire Size Calculator is a convenient online tool that helps determine the correct tire dimensions for a vehicle, ensuring optimal performance and compatibility.

Tire Diameter
Tread Width
Rim Diameter
Sidewall Height
Circumference
Revolutions

265/40R18 Alternate Tire Size

Tire Size Overall Diameter Difference
275/35R18 25.6″ (649 mm) -3%
275/30R19 25.6″ (649 mm) -3%
285/25R20 25.6″ (650 mm) -2.8%
235/30R20 25.6″ (650 mm) -2.8%
335/25R19 25.6″ (651 mm) -2.7%
215/45R18 25.6″ (651 mm) -2.7%
245/40R18 25.7″ (653 mm) -2.4%
245/35R19 25.8″ (655 mm) -2.1%
285/30R19 25.8″ (655 mm) -2.1%
215/40R19 25.8″ (655 mm) -2.1%
245/30R20 25.8″ (656 mm) -1.9%
295/25R20 25.8″ (656 mm) -1.9%
285/35R18 25.9″ (657 mm) -1.8%
335/30R18 25.9″ (659 mm) -1.5%
225/45R18 25.9″ (659 mm) -1.5%
125/70R19 25.9″ (659 mm) -1.5%
305/25R20 26″ (660 mm) -1.3%
255/40R18 26″ (661 mm) -1.2%
185/55R18 26″ (661 mm) -1.2%
355/25R19 26″ (661 mm) -1.2%
295/30R19 26″ (661 mm) -1.2%
255/35R19 26″ (661 mm) -1.2%
145/70R18 26″ (661 mm) -1.2%
255/30R20 26.1″ (662 mm) -1%
205/50R18 26.1″ (663 mm) -0.9%
225/40R19 26.1″ (663 mm) -0.9%
295/35R18 26.1″ (663 mm) -0.9%
345/30R18 26.2″ (665 mm) -0.6%
225/35R20 26.2″ (666 mm) -0.4%
315/25R20 26.2″ (666 mm) -0.4%
305/30R19 26.3″ (667 mm) -0.3%
265/30R20 26.3″ (668 mm) -0.1%
235/45R18 26.3″ (669 mm) 0%
265/35R19 26.3″ (669 mm) 0%
325/25R20 26.4″ (670 mm) 0.1%
305/35R18 26.4″ (671 mm) 0.3%
235/40R19 26.4″ (671 mm) 0.3%
235/35R20 26.5″ (672 mm) 0.4%
315/30R19 26.5″ (673 mm) 0.6%
215/50R18 26.5″ (673 mm) 0.6%
135/70R19 26.5″ (673 mm) 0.6%
135/80R18 26.5″ (673 mm) 0.6%
275/30R20 26.5″ (674 mm) 0.7%
155/70R18 26.6″ (675 mm) 0.9%
275/35R19 26.6″ (675 mm) 0.9%
335/25R20 26.6″ (676 mm) 1%
245/45R18 26.7″ (677 mm) 1.2%
275/40R18 26.7″ (677 mm) 1.2%
315/35R18 26.7″ (677 mm) 1.2%
325/30R19 26.7″ (679 mm) 1.5%
245/40R19 26.7″ (679 mm) 1.5%
245/35R20 26.8″ (680 mm) 1.6%
345/25R20 26.8″ (680 mm) 1.6%
285/30R20 26.8″ (680 mm) 1.6%
145/60R20 26.9″ (682 mm) 1.9%
225/50R18 26.9″ (683 mm) 2.1%
285/35R19 26.9″ (683 mm) 2.1%
205/55R18 26.9″ (683 mm) 2.1%
225/45R19 27″ (685 mm) 2.4%
335/30R19 27″ (685 mm) 2.4%
285/40R18 27″ (685 mm) 2.4%
325/35R18 27″ (685 mm) 2.4%
255/35R20 27″ (686 mm) 2.5%
295/30R20 27″ (686 mm) 2.5%
255/40R19 27″ (687 mm) 2.7%
255/45R18 27″ (687 mm) 2.7%
225/40R20 27.1″ (688 mm) 2.8%
145/80R18 27.1″ (689 mm) 3%
165/70R18 27.1″ (689 mm) 3%
295/35R19 27.1″ (689 mm) 3%

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