Comparison of tire sizes 185/65 R14 and 185/50 R16
185/65R14
185
Tire width 
65
Profile height 
R14
Tire diameter 
534
RPM per km 185mm120mm596mm1873mm
185
65
14
185
50
16
| Parameters Sizes | Old | New | |||
|---|---|---|---|---|---|
| Diameter, mm | 596 | 591 | -5 (-0.8%) | ||
| Width, mm | 185 | 185 | 0 (0%) | ||
| Circumference, mm | 1873 | 1858 | -15 (-0.8%) | ||
| Profile height, mm | 120 | 93 | -27 (-22.5%) | ||
| RPM per km | 534 | 538 | +4 (+0.7%) | ||
| Clearance change, mm | -3 | ||||
| Result: | The diameter differs by -0.8%. | ||||
| Speedometer reading (km/h) | |
|---|---|
| Real speed (km/h) | 99.2 |
| Difference (km/h) | -0.8 |
Sizes for comparison of tires 185/65 R14
R14
R13 -1
R15 +1
R16 +2
Sizes for comparison of tires 185/50 R16
R16
R15 -1
R17 +1
R14 -2
R18 +2
