Comparison of tire sizes 245/55 R19 and 255/55 R18
245/55R19
245
Tire width 
55
Profile height 
R19
Tire diameter 
423
RPM per km 245mm135mm752mm2363mm
245
55
19
255
55
18
| Parameters Sizes | Old | New | |||
|---|---|---|---|---|---|
| Diameter, mm | 752 | 738 | -14 (-1.9%) | ||
| Width, mm | 245 | 255 | +10 (+4.1%) | ||
| Circumference, mm | 2363 | 2318 | -45 (-1.9%) | ||
| Profile height, mm | 135 | 140 | +5 (+3.7%) | ||
| RPM per km | 423 | 431 | +8 (+1.9%) | ||
| Clearance change, mm | -7 | ||||
| Result: | The diameter differs by -1.9%. | ||||
| Speedometer reading (km/h) | |
|---|---|
| Real speed (km/h) | 98.1 |
| Difference (km/h) | -1.9 |
Sizes for comparison of tires 245/55 R19
R19
R18 -1
R20 +1
R17 -2
R21 +2
Sizes for comparison of tires 255/55 R18
R18
R17 -1
R19 +1
R16 -2
R20 +2
Ads by size 255/55 R18
-
4Tires Professional Professional, 255/55/R18, Used.For sale All season tires Professional Professional, 255/55/R18, In stock: 4 pc., Condition: Used.
R18120 €/set25/08/2025Riga -
2Tires Antares Antares, 255/55/R18, Used.For sale Summer tires Antares Antares, 255/55/R18, In stock: 2 pc., Condition: Used.
R1850.00 €/pc.25/08/2025Riga -
1Tires Pirelli Scorpion, 255/55/R18, Used.For sale All season tires Pirelli Scorpion, 255/55/R18, In stock: 1 pc., Condition: Used.
R1825.00 €/pc.11/08/2025Riga
