Comparison of tire sizes 205/70 R15 and 175/80 R16
205/70R15
205
Tire width 
70
Profile height 
R15
Tire diameter 
477
RPM per km 205mm144mm668mm2099mm
205
70
15
175
80
16
| Parameters Sizes | Old | New | |||
|---|---|---|---|---|---|
| Diameter, mm | 668 | 686 | +18 (+2.7%) | ||
| Width, mm | 205 | 175 | -30 (-14.6%) | ||
| Circumference, mm | 2099 | 2156 | +57 (+2.7%) | ||
| Profile height, mm | 144 | 140 | -4 (-2.8%) | ||
| RPM per km | 477 | 464 | -13 (-2.7%) | ||
| Clearance change, mm | +9 | ||||
| Result: | The diameter differs by 2.7%. | ||||
| Speedometer reading (km/h) | |
|---|---|
| Real speed (km/h) | 102.7 |
| Difference (km/h) | 2.7 |
Sizes for comparison of tires 205/70 R15
R15
R14 -1
R16 +1
R17 +2
Sizes for comparison of tires 175/80 R16
R16
R15 -1
R17 +1
R14 -2
R18 +2
