Comparison of tire sizes 225/65 R15 and 225/70 R15
225/65R15
225
Tire width 
65
Profile height 
R15
Tire diameter 
473
RPM per km 225mm146mm674mm2116mm
225
65
15
225
70
15
| Parameters Sizes | Old | New | |||
|---|---|---|---|---|---|
| Diameter, mm | 674 | 696 | +22 (+3.3%) | ||
| Width, mm | 225 | 225 | 0 (0%) | ||
| Circumference, mm | 2116 | 2187 | +71 (+3.4%) | ||
| Profile height, mm | 146 | 158 | +12 (+8.2%) | ||
| RPM per km | 473 | 457 | -16 (-3.4%) | ||
| Clearance change, mm | +11 | ||||
| Result: | The diameter differs by 3.3%. | ||||
| Speedometer reading (km/h) | |
|---|---|
| Real speed (km/h) | 103.4 |
| Difference (km/h) | 3.4 |
Sizes for comparison of tires 225/65 R15
R15
R14 -1
R16 +1
R17 +2
Sizes for comparison of tires 225/70 R15
R15
R14 -1
R16 +1
R17 +2
