Comparison of tire sizes 255/65 R16 and 245/75 R16
255/65R16
255
Tire width 
65
Profile height 
R16
Tire diameter 
431
RPM per km 255mm166mm738mm2318mm
255
65
16
245
75
16
| Parameters Sizes | Old | New | |||
|---|---|---|---|---|---|
| Diameter, mm | 738 | 774 | +36 (+4.9%) | ||
| Width, mm | 255 | 245 | -10 (-3.9%) | ||
| Circumference, mm | 2318 | 2431 | +113 (+4.9%) | ||
| Profile height, mm | 166 | 184 | +18 (+10.8%) | ||
| RPM per km | 431 | 411 | -20 (-4.6%) | ||
| Clearance change, mm | +18 | ||||
| Result: | The diameter differs by 4.9%. | ||||
| Speedometer reading (km/h) | |
|---|---|
| Real speed (km/h) | 104.9 |
| Difference (km/h) | 4.9 |
Sizes for comparison of tires 255/65 R16
R16
R15 -1
R17 +1
R18 +2
Sizes for comparison of tires 245/75 R16
R16
R15 -1
R17 +1
R18 +2