Comparison of tire sizes 265/60 R18 and 265/65 R18
265/60R18
265
Tire width 
60
Profile height 
R18
Tire diameter 
411
RPM per km 265mm159mm775mm2435mm
265
60
18
265
65
18
| Parameters Sizes | Old | New | |||
|---|---|---|---|---|---|
| Diameter, mm | 775 | 802 | +27 (+3.5%) | ||
| Width, mm | 265 | 265 | 0 (0%) | ||
| Circumference, mm | 2435 | 2519 | +84 (+3.4%) | ||
| Profile height, mm | 159 | 172 | +13 (+8.2%) | ||
| RPM per km | 411 | 397 | -14 (-3.4%) | ||
| Clearance change, mm | +14 | ||||
| Result: | The diameter differs by 3.5%. | ||||
| Speedometer reading (km/h) | |
|---|---|
| Real speed (km/h) | 103.4 |
| Difference (km/h) | 3.4 |
Sizes for comparison of tires 265/60 R18
R18
R17 -1
R19 +1
R16 -2
R20 +2
Sizes for comparison of tires 265/65 R18
R18
R17 -1
R19 +1
R16 -2
R20 +2