Comparison of tire sizes 185/55 R14 and 195/45 R16
185/55R14
185
Tire width 
55
Profile height 
R14
Tire diameter 
569
RPM per km 185mm102mm559mm1756mm
185
55
14
195
45
16
| Parameters Sizes | Old | New | |||
|---|---|---|---|---|---|
| Diameter, mm | 559 | 582 | +23 (+4.1%) | ||
| Width, mm | 185 | 195 | +10 (+5.4%) | ||
| Circumference, mm | 1756 | 1828 | +72 (+4.1%) | ||
| Profile height, mm | 102 | 88 | -14 (-13.7%) | ||
| RPM per km | 569 | 547 | -22 (-3.9%) | ||
| Clearance change, mm | +12 | ||||
| Result: | The diameter differs by 4.1%. | ||||
| Speedometer reading (km/h) | |
|---|---|
| Real speed (km/h) | 104.1 |
| Difference (km/h) | 4.1 |
Sizes for comparison of tires 185/55 R14
R14
R13 -1
R15 +1
R16 +2
Sizes for comparison of tires 195/45 R16
R16
R15 -1
R17 +1
R14 -2