Comparison of tire sizes 165/70 R13 and 175/55 R15
165/70R13
165
Tire width 
70
Profile height 
R13
Tire diameter 
567
RPM per km 165mm116mm561mm1763mm
165
70
13
175
55
15
| Parameters Sizes | Old | New | |||
|---|---|---|---|---|---|
| Diameter, mm | 561 | 574 | +13 (+2.3%) | ||
| Width, mm | 165 | 175 | +10 (+6.1%) | ||
| Circumference, mm | 1763 | 1802 | +39 (+2.2%) | ||
| Profile height, mm | 116 | 96 | -20 (-17.2%) | ||
| RPM per km | 567 | 555 | -12 (-2.1%) | ||
| Clearance change, mm | +7 | ||||
| Result: | The diameter differs by 2.3%. | ||||
| Speedometer reading (km/h) | |
|---|---|
| Real speed (km/h) | 102.2 |
| Difference (km/h) | 2.2 |
Sizes for comparison of tires 165/70 R13
R13
R14 +1
R15 +2
Sizes for comparison of tires 175/55 R15
R15
R14 -1
R16 +1
R13 -2
R17 +2