Comparison of tire sizes 235/70 R16 and 245/60 R18
235/70R16
235
Tire width 
70
Profile height 
R16
Tire diameter 
433
RPM per km 235mm165mm735mm2310mm
235
70
16
245
60
18
| Parameters Sizes | Old | New | |||
|---|---|---|---|---|---|
| Diameter, mm | 735 | 751 | +16 (+2.2%) | ||
| Width, mm | 235 | 245 | +10 (+4.3%) | ||
| Circumference, mm | 2310 | 2360 | +50 (+2.2%) | ||
| Profile height, mm | 165 | 147 | -18 (-10.9%) | ||
| RPM per km | 433 | 424 | -9 (-2.1%) | ||
| Clearance change, mm | +8 | ||||
| Result: | The diameter differs by 2.2%. | ||||
| Speedometer reading (km/h) | |
|---|---|
| Real speed (km/h) | 102.2 |
| Difference (km/h) | 2.2 |
Sizes for comparison of tires 235/70 R16
R16
R15 -1
R17 +1
R18 +2
Sizes for comparison of tires 245/60 R18
R18
R17 -1
R19 +1
R16 -2
R20 +2