Comparison of tire sizes 175/60 R14 and 185/60 R13
175/60R14
175
Tire width 
60
Profile height 
R14
Tire diameter 
563
RPM per km 175mm105mm566mm1777mm
175
60
14
185
60
13
| Parameters Sizes | Old | New | |||
|---|---|---|---|---|---|
| Diameter, mm | 566 | 552 | -14 (-2.5%) | ||
| Width, mm | 175 | 185 | +10 (+5.7%) | ||
| Circumference, mm | 1777 | 1735 | -42 (-2.4%) | ||
| Profile height, mm | 105 | 111 | +6 (+5.7%) | ||
| RPM per km | 563 | 576 | +13 (+2.3%) | ||
| Clearance change, mm | -7 | ||||
| Result: | The diameter differs by -2.5%. | ||||
| Speedometer reading (km/h) | |
|---|---|
| Real speed (km/h) | 97.6 |
| Difference (km/h) | -2.4 |
Sizes for comparison of tires 175/60 R14
R14
R13 -1
R15 +1
R16 +2
Sizes for comparison of tires 185/60 R13
R13
R14 +1
R15 +2