Tyre size calculator

Equivalent sizes for the 235/65 R18 tyre

Sidewall height 153 mmDiameter 763 mm Circumference 2396 mmRevolutions/km 417

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
245/65 R17 -1.63 % 98.4 km/h —
235/70 R17 -0.27 % 99.7 km/h —
255/65 R17 +0.07 % 100.1 km/h —
245/70 R17 +1.57 % 101.6 km/h —
265/65 R17 +1.76 % 101.8 km/h —

18″

Size Difference Actual speed at 100 km/h on the speedometer ETRTO rims Tyres in stock
225/65 R18 -1.70 % 98.3 km/h — —
245/60 R18 -1.53 % 98.5 km/h —
235/65 R18 Your size 0 % 100.0 km/h —
255/60 R18 +0.07 % 100.1 km/h —
265/60 R18 +1.63 % 101.6 km/h —

19″

Size Difference Actual speed at 100 km/h on the speedometer ETRTO rims Tyres in stock
265/50 R19 -2.00 % 98.0 km/h 8,5" – 7,5" – 8" – 9" – 9,5"
245/55 R19 -1.40 % 98.6 km/h —
255/55 R19 +0.03 % 100.0 km/h —

20″

Size Difference Actual speed at 100 km/h on the speedometer ETRTO rims Tyres in stock
255/50 R20 +0.03 % 100.0 km/h 8" – 7" – 7,5" – 8,5" – 9"
235/55 R20 +0.50 % 100.5 km/h —
265/50 R20 +1.33 % 101.3 km/h 8,5" – 7,5" – 8" – 9" – 9,5"

21″

Size Difference Actual speed at 100 km/h on the speedometer ETRTO rims Tyres in stock
265/45 R21 +1.20 % 101.2 km/h 9" – 8,5" – 9,5" – 10"

22″

Size Difference Actual speed at 100 km/h on the speedometer ETRTO rims Tyres in stock
265/40 R22 +1.07 % 101.1 km/h 9,5" – 9" – 10" – 10,5"

Sizes equivalent to 235/65 R18:

245/65 R17235/70 R17255/65 R17245/70 R17265/65 R17225/65 R18245/60 R18255/60 R18265/60 R18265/50 R19245/55 R19255/55 R19255/50 R20235/55 R20265/50 R20265/45 R21265/40 R22

235/65 R18 tyres in stock

View all 16 235/65 R18 tyres ›
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This information is provided for guidance only and does not engage Rupteur's liability in any way.