tire

Tire Size Calculator

Calculate tire sizes in inches or millimeters and find alternative sizes.
Tread Width: 275
Aspect Ratio: 40
Wheel Diameter: 20
Inches
Millimeters

Results for 275/40R20 Tires

disc wheel
Diameter
28.7"
tire width
Width
10.8"
disc wheel
Sidewall
4.3"
tire circumference
Circumference
90"
tire rpm
Revs per mile
704

Alternate Tire Sizes

20"
15"
16"
17"
18"
19"
21"
22"
23"
24"
Tire Size
Diameter
Width
Sidewall
Circumference
Revs per mile
285/35R20
27,9"
-2.87%
11,2"
3,9"
87,5"
724
335/30R20
27,9"
-2.87%
13,2"
4,0"
87,6"
723
255/40R20
28,0"
-2.5%
10,0"
4,0"
88,0"
720
295/35R20
28,1"
-2.14%
11,6"
4,1"
88,3"
717
345/30R20
28,1"
-2.14%
13,6"
4,1"
88,4"
717
235/45R20
28,3"
-1.41%
9,3"
4,2"
88,9"
712
265/40R20
28,3"
-1.41%
10,4"
4,2"
89,0"
712
305/35R20
28,4"
-1.06%
12,0"
4,2"
89,2"
710
195/55R20
28,4"
-1.06%
7,7"
4,2"
89,3"
709
275/40R20
28,7"
0%
10,8"
4,3"
90,0"
704
Best fit
245/45R20
28,7"
0%
9,6"
4,3"
90,1"
704
Best fit
315/35R20
28,7"
0%
12,4"
4,3"
90,1"
704
Best fit
325/35R20
29,0"
1.03%
12,8"
4,5"
90,9"
697
285/40R20
29,0"
1.03%
11,2"
4,5"
91,0"
696
255/45R20
29,0"
1.03%
10,0"
4,5"
91,2"
695
295/40R20
29,3"
2.05%
11,6"
4,6"
92,0"
689
235/50R20
29,3"
2.05%
9,3"
4,6"
91,9"
690
265/45R20
29,4"
2.38%
10,4"
4,7"
92,3"
687