Comparison of tire sizes 265/70 R17 and 275/70 R18
265/70R17
265
Tire width 
70
Profile height 
R17
Tire diameter 
396
RPM per km 265mm186mm803mm2522mm
265
70
17
275
70
18
| Parameters Sizes | Old | New | |||
|---|---|---|---|---|---|
| Diameter, mm | 803 | 842 | +39 (+4.9%) | ||
| Width, mm | 265 | 275 | +10 (+3.8%) | ||
| Circumference, mm | 2522 | 2646 | +124 (+4.9%) | ||
| Profile height, mm | 186 | 193 | +7 (+3.8%) | ||
| RPM per km | 396 | 378 | -18 (-4.5%) | ||
| Clearance change, mm | +20 | ||||
| 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 265/70 R17
R17
R16 -1
R18 +1
R19 +2
Sizes for comparison of tires 275/70 R18
R18
R17 -1
R16 -2
R20 +2
