Comparison of tire sizes 205/70 R15 and 215/65 R15
205/70R15
205
Tire width 
70
Profile height 
R15
Tire diameter 
477
RPM per km 205mm144mm668mm2099mm
205
70
15
215
65
15
| Parameters Sizes | Old | New | |||
|---|---|---|---|---|---|
| Diameter, mm | 668 | 661 | -7 (-1%) | ||
| Width, mm | 205 | 215 | +10 (+4.9%) | ||
| Circumference, mm | 2099 | 2075 | -24 (-1.1%) | ||
| Profile height, mm | 144 | 140 | -4 (-2.8%) | ||
| RPM per km | 477 | 482 | +5 (+1%) | ||
| Clearance change, mm | -4 | ||||
| Result: | The diameter differs by -1%. | ||||
| Speedometer reading (km/h) | |
|---|---|
| Real speed (km/h) | 98.9 |
| Difference (km/h) | -1.1 |
Sizes for comparison of tires 205/70 R15
R15
R14 -1
R16 +1
R17 +2
Sizes for comparison of tires 215/65 R15
R15
R14 -1
R16 +1
R17 +2