Comparison of tire sizes 205/45 R16 and 205/40 R17
205/45R16
205
Tire width 
45
Profile height 
R16
Tire diameter 
539
RPM per km 205mm92mm591mm1856mm
205
45
16
205
40
17
| Parameters Sizes | Old | New | |||
|---|---|---|---|---|---|
| Diameter, mm | 591 | 596 | +5 (+0.8%) | ||
| Width, mm | 205 | 205 | 0 (0%) | ||
| Circumference, mm | 1856 | 1872 | +16 (+0.9%) | ||
| Profile height, mm | 92 | 82 | -10 (-10.9%) | ||
| RPM per km | 539 | 534 | -5 (-0.9%) | ||
| Clearance change, mm | +3 | ||||
| Result: | The diameter differs by 0.8%. | ||||
| Speedometer reading (km/h) | |
|---|---|
| Real speed (km/h) | 100.9 |
| Difference (km/h) | 0.9 |
Sizes for comparison of tires 205/45 R16
R16
R15 -1
R17 +1
R14 -2
R18 +2
Sizes for comparison of tires 205/40 R17
R17
R16 -1
R18 +1
R15 -2