Comparison of tire sizes 225/50 R15 and 195/70 R14
225/50R15
225
Tire width 
50
Profile height 
R15
Tire diameter 
525
RPM per km 225mm113mm606mm1904mm
225
50
15
195
70
14
| Parameters Sizes | Old | New | |||
|---|---|---|---|---|---|
| Diameter, mm | 606 | 629 | +23 (+3.8%) | ||
| Width, mm | 225 | 195 | -30 (-13.3%) | ||
| Circumference, mm | 1904 | 1975 | +71 (+3.7%) | ||
| Profile height, mm | 113 | 137 | +24 (+21.2%) | ||
| RPM per km | 525 | 506 | -19 (-3.6%) | ||
| Clearance change, mm | +12 | ||||
| Result: | The diameter differs by 3.8%. | ||||
| Speedometer reading (km/h) | |
|---|---|
| Real speed (km/h) | 103.7 |
| Difference (km/h) | 3.7 |
Sizes for comparison of tires 225/50 R15
R15
R14 -1
R16 +1
R13 -2
R17 +2
Sizes for comparison of tires 195/70 R14
R14
R15 +1
R16 +2