Comparison of tire sizes 235/85 R16 and 245/75 R16
235/85R16
235
Tire width 
85
Profile height 
R16
Tire diameter 
395
RPM per km 235mm200mm806mm2532mm
235
85
16
245
75
16
| Parameters Sizes | Old | New | |||
|---|---|---|---|---|---|
| Diameter, mm | 806 | 774 | -32 (-4%) | ||
| Width, mm | 235 | 245 | +10 (+4.3%) | ||
| Circumference, mm | 2532 | 2431 | -101 (-4%) | ||
| Profile height, mm | 200 | 184 | -16 (-8%) | ||
| RPM per km | 395 | 411 | +16 (+4.1%) | ||
| Clearance change, mm | -16 | ||||
| Result: | The diameter differs by -4%. | ||||
| Speedometer reading (km/h) | |
|---|---|
| Real speed (km/h) | 96 |
| Difference (km/h) | -4 |
Sizes for comparison of tires 235/85 R16
R16
R17 +1
R18 +2
Sizes for comparison of tires 245/75 R16
R16
R15 -1
R17 +1
R18 +2