Comparison of tire sizes 175/65 R14 and 165/75 R14
175/65R14
175
Tire width 
65
Profile height 
R14
Tire diameter 
546
RPM per km 175mm114mm583mm1832mm
175
65
14
165
75
14
| Parameters Sizes | Old | New | |||
|---|---|---|---|---|---|
| Diameter, mm | 583 | 603 | +20 (+3.4%) | ||
| Width, mm | 175 | 165 | -10 (-5.7%) | ||
| Circumference, mm | 1832 | 1895 | +63 (+3.4%) | ||
| Profile height, mm | 114 | 124 | +10 (+8.8%) | ||
| RPM per km | 546 | 528 | -18 (-3.3%) | ||
| Clearance change, mm | +10 | ||||
| Result: | The diameter differs by 3.4%. | ||||
| Speedometer reading (km/h) | |
|---|---|
| Real speed (km/h) | 103.4 |
| Difference (km/h) | 3.4 |
Sizes for comparison of tires 175/65 R14
R14
R13 -1
R15 +1
R16 +2
Sizes for comparison of tires 165/75 R14
R14
R13 -1
R15 +1
R16 +2