Comparison of tire sizes 195/60 R14 and 225/50 R15
195/60R14
195
Tire width 
60
Profile height 
R14
Tire diameter 
540
RPM per km 195mm117mm590mm1852mm
195
60
14
225
50
15
| Parameters Sizes | Old | New | |||
|---|---|---|---|---|---|
| Diameter, mm | 590 | 606 | +16 (+2.7%) | ||
| Width, mm | 195 | 225 | +30 (+15.4%) | ||
| Circumference, mm | 1852 | 1904 | +52 (+2.8%) | ||
| Profile height, mm | 117 | 113 | -4 (-3.4%) | ||
| RPM per km | 540 | 525 | -15 (-2.8%) | ||
| Clearance change, mm | +8 | ||||
| Result: | The diameter differs by 2.7%. | ||||
| Speedometer reading (km/h) | |
|---|---|
| Real speed (km/h) | 102.8 |
| Difference (km/h) | 2.8 |
Sizes for comparison of tires 195/60 R14
R14
R13 -1
R15 +1
R16 +2
Sizes for comparison of tires 225/50 R15
R15
R14 -1
R16 +1
R13 -2
R17 +2