Comparison of tire sizes 185/60 R14 and 185/70 R13
185/60R14
185
Tire width 
60
Profile height 
R14
Tire diameter 
551
RPM per km 185mm111mm578mm1815mm
185
60
14
185
70
13
| Parameters Sizes | Old | New | |||
|---|---|---|---|---|---|
| Diameter, mm | 578 | 589 | +11 (+1.9%) | ||
| Width, mm | 185 | 185 | 0 (0%) | ||
| Circumference, mm | 1815 | 1851 | +36 (+2%) | ||
| Profile height, mm | 111 | 130 | +19 (+17.1%) | ||
| RPM per km | 551 | 540 | -11 (-2%) | ||
| Clearance change, mm | +6 | ||||
| Result: | The diameter differs by 1.9%. | ||||
| Speedometer reading (km/h) | |
|---|---|
| Real speed (km/h) | 102 |
| Difference (km/h) | 2 |
Sizes for comparison of tires 185/60 R14
R14
R13 -1
R15 +1
R16 +2
Sizes for comparison of tires 185/70 R13
R13
R14 +1
R15 +2