tire

Tire Size Calculator

Calculate tire sizes in inches or millimeters and find alternative sizes.
Tread Width: 255
Aspect Ratio: 55
Wheel Diameter: 18
Inches
Millimeters

Results for 255/55R18 Tires

disc wheel
Diameter
29"
tire width
Width
10"
disc wheel
Sidewall
5.5"
tire circumference
Circumference
91.2"
tire rpm
Revs per mile
695

Alternate Tire Sizes

18"
15"
16"
17"
19"
20"
21"
22"
23"
24"
Tire Size
Diameter
Width
Sidewall
Circumference
Revs per mile
235/55R18
28,2"
-2.84%
9,3"
5,1"
88,5"
716
215/60R18
28,2"
-2.84%
8,5"
5,1"
88,4"
717
295/45R18
28,5"
-1.75%
11,6"
5,2"
89,3"
709
245/55R18
28,6"
-1.4%
9,6"
5,3"
89,8"
705
225/60R18
28,6"
-1.4%
8,9"
5,3"
89,9"
705
255/55R18
29,0"
0%
10,0"
5,5"
91,2"
695
Best fit
235/60R18
29,1"
0.34%
9,3"
5,6"
91,4"
693
Best fit
285/50R18
29,2"
0.68%
11,2"
5,6"
91,8"
691
Best fit
225/65R18
29,5"
1.69%
8,9"
5,8"
92,7"
684
245/60R18
29,6"
2.03%
9,6"
5,8"
92,9"
682