Comparison of tire sizes 265/70 R18 and 275/60 R18
265/70R18
265
Tire width 
70
Profile height 
R18
Tire diameter 
384
RPM per km 265mm186mm828mm2602mm
265
70
18
275
60
18
| Parameters Sizes | Old | New | |||
|---|---|---|---|---|---|
| Diameter, mm | 828 | 787 | -41 (-5%) | ||
| Width, mm | 265 | 275 | +10 (+3.8%) | ||
| Circumference, mm | 2602 | 2473 | -129 (-5%) | ||
| Profile height, mm | 186 | 165 | -21 (-11.3%) | ||
| RPM per km | 384 | 404 | +20 (+5.2%) | ||
| Clearance change, mm | -21 | ||||
| Result: | The diameter differs by -5%. | ||||
| Speedometer reading (km/h) | |
|---|---|
| Real speed (km/h) | 95 |
| Difference (km/h) | -5 |
Sizes for comparison of tires 265/70 R18
R18
R17 -1
R16 -2
R20 +2
Sizes for comparison of tires 275/60 R18
R18
R17 -1
R19 +1
R16 -2
R20 +2