Tyre size calculator

225
65
18

Equivalent sizes for the 225/65 R18 tyre

Sidewall height 146 mmDiameter 750 mm Circumference 2355 mmRevolutions/km 425

To be approved, a tyre's diameter may differ by no more than 2 %. The vehicle's load and speed indices must also be respected.

Tyre size equivalents

17″

Size Difference Actual speed at 100 km/h on the speedometer ETRTO rims Tyres in stock
235/65 R17 -1.66 % 98.3 km/h —
LaufennTracmaxLandspider 50 models in stockFrom CHF 81.90 Summer11 Winter18 All-season21
255/60 R17 -1.59 % 98.4 km/h —
TracmaxNexenHankook 5 models in stockFrom CHF 85.90 Winter4 All-season1
225/70 R17 -0.41 % 99.6 km/h —
BridgestoneFalken 2 models in stockFrom CHF 167.00 Winter1 All-season1
245/65 R17 +0.07 % 100.1 km/h —
TracmaxKumhoKleber 11 models in stockFrom CHF 94.90 Summer3 Winter3 All-season5
235/70 R17 +1.46 % 101.5 km/h —
FalkenYokohama 2 models in stockFrom CHF 152.00 Winter1 All-season1
255/65 R17 +1.80 % 101.8 km/h —
TracmaxLaufennHankook 10 models in stockFrom CHF 92.90 Summer2 Winter4 All-season4

18″

Size Difference Actual speed at 100 km/h on the speedometer ETRTO rims Tyres in stock
255/55 R18 -1.63 % 98.4 km/h —
TracmaxYokohamaFirestone 36 models in stockFrom CHF 88.90 Summer8 Winter14 All-season14
235/60 R18 -1.42 % 98.6 km/h —
TracmaxBridgestoneYokohama 59 models in stockFrom CHF 85.90 Summer15 Winter26 All-season18
225/65 R18 Your size 0 % 100.0 km/h — —
245/60 R18 +0.17 % 100.2 km/h —
TracmaxKumhoNexen 9 models in stockFrom CHF 84.90 Summer2 Winter5 All-season2
235/65 R18 +1.73 % 101.7 km/h —
TracmaxKumhoNexen 16 models in stockFrom CHF 85.90 Summer2 Winter6 All-season8
255/60 R18 +1.80 % 101.8 km/h —
TracmaxNexenHankook 29 models in stockFrom CHF 88.90 Summer8 Winter11 All-season10

19″

Size Difference Actual speed at 100 km/h on the speedometer ETRTO rims Tyres in stock
255/50 R19 -1.63 % 98.4 km/h 8" – 7" – 7,5" – 8,5" – 9"
TracmaxFirestoneContinental 43 models in stockFrom CHF 97.90 Summer4 Winter22 All-season17
235/55 R19 -1.15 % 98.9 km/h —
PirelliNexenFalken 56 models in stockFrom CHF 90.90 Summer21 Winter19 All-season16
245/55 R19 +0.30 % 100.3 km/h —
YokohamaBridgestoneMichelin 3 models in stockFrom CHF 169.00 Summer1 All-season2
255/55 R19 +1.76 % 101.8 km/h —
TracmaxYokohamaVredestein 41 models in stockFrom CHF 97.90 Summer7 Winter16 All-season18

20″

Size Difference Actual speed at 100 km/h on the speedometer ETRTO rims Tyres in stock
255/45 R20 -1.63 % 98.4 km/h 8,5" – 8" – 9" – 9,5"
TracmaxYokohamaKumho 33 models in stockFrom CHF 85.90 Summer14 Winter7 All-season12
255/50 R20 +1.76 % 101.8 km/h 8" – 7" – 7,5" – 8,5" – 9"
TracmaxHankookLandspider 27 models in stockFrom CHF 105.00 Summer9 Winter12 All-season6

21″

Size Difference Actual speed at 100 km/h on the speedometer ETRTO rims Tyres in stock
255/40 R21 -1.66 % 98.3 km/h 9" – 8,5" – 9,5" – 10"
KleberHankookUniroyal 8 models in stockFrom CHF 215.00 Summer2 Winter5 All-season1

Sizes equivalent to 225/65 R18:

235/65 R17255/60 R17225/70 R17245/65 R17235/70 R17255/65 R17255/55 R18235/60 R18245/60 R18235/65 R18255/60 R18255/50 R19235/55 R19245/55 R19255/55 R19255/45 R20255/50 R20255/40 R21

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This information is provided for guidance only and does not engage Rupteur's liability in any way.