tire

Tire Size Calculator

Calculate tire sizes in inches or millimeters and find alternative sizes.
Tread Width: 255
Aspect Ratio: 50
Wheel Diameter: 20
Inches
Millimeters

Results for 255/50R20 Tires

disc wheel
Diameter
30"
tire width
Width
10"
disc wheel
Sidewall
5"
tire circumference
Circumference
94.3"
tire rpm
Revs per mile
672

Alternate Tire Sizes

20"
15"
16"
17"
18"
19"
21"
22"
23"
24"
Tire Size
Diameter
Width
Sidewall
Circumference
Revs per mile
235/50R20
29,3"
-2.39%
9,3"
4,6"
91,9"
690
295/40R20
29,3"
-2.39%
11,6"
4,6"
92,0"
689
265/45R20
29,4"
-2.04%
10,4"
4,7"
92,3"
687
245/50R20
29,6"
-1.35%
9,6"
4,8"
93,1"
681
305/40R20
29,6"
-1.35%
12,0"
4,8"
93,0"
682
275/45R20
29,7"
-1.01%
10,8"
4,9"
93,4"
678
255/50R20
30,0"
0%
10,0"
5,0"
94,3"
672
Best fit
285/45R20
30,1"
0.33%
11,2"
5,0"
94,5"
670
Best fit
235/55R20
30,2"
0.66%
9,3"
5,1"
94,8"
669
Best fit
265/50R20
30,4"
1.32%
10,4"
5,2"
95,6"
663
295/45R20
30,5"
1.64%
11,6"
5,2"
95,6"
663
305/45R20
30,8"
2.6%
12,0"
5,4"
96,7"
655
275/50R20
30,8"
2.6%
10,8"
5,4"
96,8"
655