Comparison of tire sizes 195/50 R15 and 195/45 R15
195/50R15
195
Tire width 
50
Profile height 
R15
Tire diameter 
553
RPM per km 195mm98mm576mm1810mm
195
50
15
195
45
15
| Parameters Sizes | Old | New | |||
|---|---|---|---|---|---|
| Diameter, mm | 576 | 557 | -19 (-3.3%) | ||
| Width, mm | 195 | 195 | 0 (0%) | ||
| Circumference, mm | 1810 | 1748 | -62 (-3.4%) | ||
| Profile height, mm | 98 | 88 | -10 (-10.2%) | ||
| RPM per km | 553 | 572 | +19 (+3.4%) | ||
| Clearance change, mm | -10 | ||||
| Result: | The diameter differs by -3.3%. | ||||
| Speedometer reading (km/h) | |
|---|---|
| Real speed (km/h) | 96.6 |
| Difference (km/h) | -3.4 |
Sizes for comparison of tires 195/50 R15
R15
R14 -1
R16 +1
R13 -2
R17 +2
Sizes for comparison of tires 195/45 R15
R15
R14 -1
R16 +1
R13 -2
