Comparison of tire sizes 225/45 R17 and 225/40 R18

225/45R17
225 Tire width
45 Profile height
R17 Tire diameter
502 RPM per km
225mm101mm634mm1993mm
225
45
17
225
40
18
Parameters Sizes Old New
Diameter, mm634637+3 (+0.5%)
Width, mm2252250 (0%)
Circumference, mm19932002+9 (+0.5%)
Profile height, mm10190-11 (-10.9%)
RPM per km502500-2 (-0.4%)
Clearance change, mm+2
Result:
The diameter differs by 0.5%.
Speedometer reading (km/h)
Real speed (km/h)100.5
Difference (km/h)0.5

Sizes for comparison of tires 225/45 R17

R17
R16 -1
R18 +1
R15 -2
R19 +2

Sizes for comparison of tires 225/40 R18

R18
R17 -1
R19 +1
R16 -2
R20 +2

Ads by size 225/40 R18

  • Tires Hankook Hankook, 225/40/R18, Used. - MM.LV
    2
    Tires Hankook Hankook, 225/40/R18, Used.

    For sale Summer tires Hankook Hankook, 225/40/R18, In stock: 2 pc., Condition: Used.

    R18
    30.00 €/pc.
    04/07/2025Riga
  • Tires Dunlop Sport Maxx, 225/40/R18, Used. - MM.LV
    6
    Tires Dunlop Sport Maxx, 225/40/R18, Used.

    For sale Summer tires Dunlop Sport Maxx, 225/40/R18, In stock: 2 pc., Tread depth: 4 mm., Condition: Used. Šīs riepas tika nopirktas 2019. gadā riepu servisā kā "atjaunotās" riepas - kā pagaidu variants, jo tajā brīdī bija kas jāuzliek un citas nebija. Pēc 2 nedēļām nopirku citas/jaunas un šīs noņēm...

    R18
    10.00 €/pc.
    06/05/2025Riga, Ziepniekkalns