Comparison of tire sizes 185/55 R15 and 205/60 R14
185/55R15
185
Tire width 
55
Profile height 
R15
Tire diameter 
545
RPM per km 185mm102mm585mm1836mm
185
55
15
205
60
14
| Parameters Sizes | Old | New | |||
|---|---|---|---|---|---|
| Diameter, mm | 585 | 602 | +17 (+2.9%) | ||
| Width, mm | 185 | 205 | +20 (+10.8%) | ||
| Circumference, mm | 1836 | 1890 | +54 (+2.9%) | ||
| Profile height, mm | 102 | 123 | +21 (+20.6%) | ||
| RPM per km | 545 | 529 | -16 (-2.9%) | ||
| Clearance change, mm | +9 | ||||
| Result: | The diameter differs by 2.9%. | ||||
| Speedometer reading (km/h) | |
|---|---|
| Real speed (km/h) | 102.9 |
| Difference (km/h) | 2.9 |
Sizes for comparison of tires 185/55 R15
R15
R14 -1
R16 +1
R13 -2
R17 +2
Sizes for comparison of tires 205/60 R14
R14
R13 -1
R15 +1
R16 +2