Tire Size Comparison
Compare tire sizes side-by-side in inches or millimeters.
Inches
Millimeters
Current Tire Size: 185/65R15
Diameter
24.5"
Width
7.3"
Sidewall
4.7"
Circumference
76.8"
Revs per mile
825
New Tire Size: 175/60R15
Diameter
23.3"-5.15%
Width
6.9"-0.4"
Sidewall
4.1"-0.6"
Circumference
73.1"-3.7"
Revs per mile
86742
Speedometer Difference
20 mhp (19 mhp)
30 mhp (28.5 mhp)
40 mhp (38 mhp)
50 mhp (47.5 mhp)
60 mhp (57.1 mhp)
70 mhp (66.6 mhp)
80 mhp (76.1 mhp)
90 mhp (85.6 mhp)
100 mhp (95.1 mhp)
Recommended Products
Current Tire Size Products
New Tire Size Products