Tyre size calculator

Equivalent sizes for the 225/60 R18 tyre

Sidewall height 135 mmDiameter 727 mm Circumference 2285 mmRevolutions/km 438

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
235/60 R17 -1.85 % 98.2 km/h —
225/65 R17 -0.38 % 99.6 km/h —
235/65 R17 +1.40 % 101.4 km/h —
255/60 R17 +1.47 % 101.5 km/h —

18″

Size Difference Actual speed at 100 km/h on the speedometer ETRTO rims Tyres in stock
235/55 R18 -1.57 % 98.4 km/h —
225/60 R18 Your size 0 % 100.0 km/h —
255/55 R18 +1.43 % 101.4 km/h —
235/60 R18 +1.64 % 101.6 km/h —

19″

Size Difference Actual speed at 100 km/h on the speedometer ETRTO rims Tyres in stock
235/50 R19 -1.33 % 98.7 km/h 7,5" – 6,5" – 7" – 8" – 8,5"
225/55 R19 +0.38 % 100.4 km/h —
255/50 R19 +1.43 % 101.4 km/h 8" – 7" – 7,5" – 8,5" – 9"
235/55 R19 +1.92 % 101.9 km/h —

20″

Size Difference Actual speed at 100 km/h on the speedometer ETRTO rims Tyres in stock
235/45 R20 -1.05 % 99.0 km/h 8" – 7,5" – 8,5" – 9"
195/55 R20 -0.66 % 99.3 km/h —
245/45 R20 +0.17 % 100.2 km/h 8" – 7,5" – 8,5" – 9"
255/45 R20 +1.43 % 101.4 km/h 8,5" – 8" – 9" – 9,5"

21″

Size Difference Actual speed at 100 km/h on the speedometer ETRTO rims Tyres in stock
255/40 R21 +1.40 % 101.4 km/h 9" – 8,5" – 9,5" – 10"

Sizes equivalent to 225/60 R18:

235/60 R17225/65 R17235/65 R17255/60 R17235/55 R18255/55 R18235/60 R18235/50 R19225/55 R19255/50 R19235/55 R19235/45 R20195/55 R20245/45 R20255/45 R20255/40 R21

225/60 R18 tyres in stock

View all 39 225/60 R18 tyres ›

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