Comparison of tire sizes 225/45 R18 and 205/55 R16

225/45R18
225 Tire width
45 Profile height
R18 Tire diameter
483 RPM per km
225mm101mm660mm2073mm
225
45
18
205
55
16
Parameters Sizes Old New
Diameter, mm660632-28 (-4.2%)
Width, mm225205-20 (-8.9%)
Circumference, mm20731985-88 (-4.2%)
Profile height, mm101113+12 (+11.9%)
RPM per km483504+21 (+4.3%)
Clearance change, mm-14
Result:
The diameter differs by -4.2%.
Speedometer reading (km/h)
Real speed (km/h)95.8
Difference (km/h)-4.2

Sizes for comparison of tires 225/45 R18

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

Sizes for comparison of tires 205/55 R16

R16
R15 -1
R17 +1
R14 -2
R18 +2

Ads by size 205/55 R16