Comparison of tire sizes 205/50 R17 and 225/45 R18

205/50R17
205 Tire width
50 Profile height
R17 Tire diameter
500 RPM per km
205mm103mm637mm2001mm
205
50
17
225
45
18
Parameters Sizes Old New
Diameter, mm637660+23 (+3.6%)
Width, mm205225+20 (+9.8%)
Circumference, mm20012073+72 (+3.6%)
Profile height, mm103101-2 (-1.9%)
RPM per km500483-17 (-3.4%)
Clearance change, mm+12
Result:
The diameter differs by 3.6%.
Speedometer reading (km/h)
Real speed (km/h)103.6
Difference (km/h)3.6

Sizes for comparison of tires 205/50 R17

R17
R16 -1
R18 +1
R15 -2
R19 +2

Sizes for comparison of tires 225/45 R18

R18
R17 -1
R19 +1
R16 -2
R20 +2

Ads by size 225/45 R18