Comparison of tire sizes 165/70 R14 and 175/65 R15
165/70R14
165
Tire width 
70
Profile height 
R14
Tire diameter 
543
RPM per km 165mm116mm587mm1843mm
165
70
14
175
65
15
| Parameters Sizes | Old | New | |||
|---|---|---|---|---|---|
| Diameter, mm | 587 | 609 | +22 (+3.7%) | ||
| Width, mm | 165 | 175 | +10 (+6.1%) | ||
| Circumference, mm | 1843 | 1912 | +69 (+3.7%) | ||
| Profile height, mm | 116 | 114 | -2 (-1.7%) | ||
| RPM per km | 543 | 523 | -20 (-3.7%) | ||
| Clearance change, mm | +11 | ||||
| Result: | The diameter differs by 3.7%. | ||||
| Speedometer reading (km/h) | |
|---|---|
| Real speed (km/h) | 103.7 |
| Difference (km/h) | 3.7 |
Sizes for comparison of tires 165/70 R14
R14
R13 -1
R15 +1
R16 +2
Sizes for comparison of tires 175/65 R15
R15
R14 -1
R16 +1
R13 -2
R17 +2