Comparison of tire sizes 185/80 R14 and 185/75 R16
185/80R14
185
Tire width 
80
Profile height 
R14
Tire diameter 
489
RPM per km 185mm148mm652mm2047mm
185
80
14
185
75
16
| Parameters Sizes | Old | New | |||
|---|---|---|---|---|---|
| Diameter, mm | 652 | 684 | +32 (+4.9%) | ||
| Width, mm | 185 | 185 | 0 (0%) | ||
| Circumference, mm | 2047 | 2149 | +102 (+5%) | ||
| Profile height, mm | 148 | 139 | -9 (-6.1%) | ||
| RPM per km | 489 | 465 | -24 (-4.9%) | ||
| Clearance change, mm | +16 | ||||
| Result: | The diameter differs by 4.9%. | ||||
| Speedometer reading (km/h) | |
|---|---|
| Real speed (km/h) | 105 |
| Difference (km/h) | 5 |
Sizes for comparison of tires 185/80 R14
R14
R15 +1
R16 +2
Sizes for comparison of tires 185/75 R16
R16
R15 -1
R17 +1
R14 -2
R18 +2