Comparison of tire sizes 175/60 R15 and 175/60 R14
175/60R15
175
Tire width 
60
Profile height 
R15
Tire diameter 
539
RPM per km 175mm105mm591mm1857mm
175
60
15
175
60
14
| Parameters Sizes | Old | New | |||
|---|---|---|---|---|---|
| Diameter, mm | 591 | 566 | -25 (-4.2%) | ||
| Width, mm | 175 | 175 | 0 (0%) | ||
| Circumference, mm | 1857 | 1777 | -80 (-4.3%) | ||
| Profile height, mm | 105 | 105 | 0 (0%) | ||
| RPM per km | 539 | 563 | +24 (+4.5%) | ||
| Clearance change, mm | -13 | ||||
| Result: | The diameter differs by -4.2%. | ||||
| Speedometer reading (km/h) | |
|---|---|
| Real speed (km/h) | 95.7 |
| Difference (km/h) | -4.3 |
Sizes for comparison of tires 175/60 R15
R15
R14 -1
R16 +1
R13 -2
R17 +2
Sizes for comparison of tires 175/60 R14
R14
R13 -1
R15 +1
R16 +2