255/65R18 Tire Size in Inches

255/65R18 is a metric tire size representation, which defines that the tires have a width of 255 mm, 65 is the aspect ratio and a rim diameter of 18 inches. In the imperial system the tire size 255/65R18 equates to a 31.1×10R18 that is commonly used in the automotive industry. So Converting 255/65R18 in inches the tires have a length of 31.1 inches, a width of 10 inches, a sidewall height of 6.5 inches and The number of complete resolutions made by the corresponding tire size is equal to 649 per mile with a circumference of 97.7 inches.

255/65R18 tire size in inches

255/65R18inchesmm
Tire Diameter31.1 inches789 mm
Tread Width10 inches255 mm
Rim Diameter18 inches457 mm
Sidewall Height6.5 inches166 mm
Circumference97.7 inches2477 mm
Revolutions649 per mile404 per km

Tire Size Calculator

Tire Diameter
Tread Width
Rim Diameter
Sidewall Height
Circumference
Revolutions

255/65R18 Equivalent Tire Sizes for replacement

If you are replacing your tires, always keep in mind that they are compatible with your vehicle so that the impact on the overall performance of your vehicle can be reduced. Here we have listed some tire size that is equivalent to 255/65R18 tires.

Tire Size Overall Diameter Difference
235/55R20 30.2″ (766 mm) -2.9%
285/55R18 30.4″ (771 mm) -2.3%
175/90R18 30.4″ (773 mm) -2%
295/45R20 30.5″ (774 mm) -1.9%
265/50R20 30.5″ (774 mm) -1.9%
265/55R19 30.5″ (775 mm) -1.8%
265/60R18 30.5″ (775 mm) -1.8%
245/65R18 30.5″ (775 mm) -1.8%
165/90R19 30.7″ (781 mm) -1%
305/45R20 30.8″ (782 mm) -0.9%
275/50R20 30.9″ (784 mm) -0.6%
275/55R19 30.9″ (785 mm) -0.5%
275/60R18 31″ (787 mm) -0.3%
235/70R18 31″ (787 mm) -0.3%
255/55R20 31″ (788 mm) -0.1%
255/60R19 31.1″ (789 mm) 0%
235/65R19 31.1″ (789 mm) 0%
285/50R20 31.3″ (794 mm) 0.6%
225/75R18 31.3″ (795 mm) 0.8%
285/55R19 31.4″ (797 mm) 1%
285/60R18 31.5″ (799 mm) 1.3%
265/65R18 31.5″ (801 mm) 1.5%
245/70R18 31.5″ (801 mm) 1.5%
245/60R20 31.6″ (802 mm) 1.6%
295/50R20 31.7″ (804 mm) 1.9%
235/75R18 31.9″ (809 mm) 2.5%
275/55R20 31.9″ (810 mm) 2.7%
225/70R19.5 31.9″ (811 mm) 2.8%

Leave a Comment