tire

Tire Size Calculator

Calculate tire sizes in inches or millimeters and find alternative sizes.
Tread Width: 305
Aspect Ratio: 65
Wheel Diameter: 18
Inches
Millimeters

Results for 305/65R18 Tires

disc wheel
Diameter
33.6"
tire width
Width
12"
disc wheel
Sidewall
7.8"
tire circumference
Circumference
105.5"
tire rpm
Revs per mile
600

Alternate Tire Sizes

18"
16"
17"
20"
22"
24"
26"
28"
Tire Size
Diameter
Width
Sidewall
Circumference
Revs per mile
295/65R18
33,1"
-1.51%
11,6"
7,5"
103,9"
610
275/70R18
33,2"
-1.2%
10,8"
7,6"
104,1"
609
325/60R18
33,4"
-0.6%
12,8"
7,7"
104,7"
605
Best fit
305/65R18
33,6"
0%
12,0"
7,8"
105,5"
600
Best fit
285/70R18
33,7"
0.3%
11,2"
7,9"
105,8"
599
Best fit
295/70R18
34,3"
2.04%
11,6"
8,1"
107,6"
589
325/65R18
34,6"
2.89%
12,8"
8,3"
108,8"
583