Comparison of tire sizes 155/60 R15 and 165/60 R14
155/60R15
155
Tire width 
60
Profile height 
R15
Tire diameter 
561
RPM per km 155mm93mm567mm1781mm
155
60
15
165
60
14
| Parameters Sizes | Old | New | |||
|---|---|---|---|---|---|
| Diameter, mm | 567 | 554 | -13 (-2.3%) | ||
| Width, mm | 155 | 165 | +10 (+6.5%) | ||
| Circumference, mm | 1781 | 1739 | -42 (-2.4%) | ||
| Profile height, mm | 93 | 99 | +6 (+6.5%) | ||
| RPM per km | 561 | 575 | +14 (+2.5%) | ||
| Clearance change, mm | -7 | ||||
| Result: | The diameter differs by -2.3%. | ||||
| Speedometer reading (km/h) | |
|---|---|
| Real speed (km/h) | 97.6 |
| Difference (km/h) | -2.4 |
Sizes for comparison of tires 155/60 R15
R15
R14 -1
R16 +1
R13 -2
Sizes for comparison of tires 165/60 R14
R14
R13 -1
R15 +1
R16 +2