Tyre size calculator

Equivalent sizes for the 215/55 R18 tyre

Sidewall height 118 mmDiameter 694 mm Circumference 2179 mmRevolutions/km 459

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
215/60 R17 -0.55 % 99.5 km/h —
235/55 R17 -0.48 % 99.5 km/h —
205/65 R17 +0.66 % 100.7 km/h —
245/55 R17 +1.10 % 101.1 km/h —
225/60 R17 +1.17 % 101.2 km/h —

18″

Size Difference Actual speed at 100 km/h on the speedometer ETRTO rims Tyres in stock
225/50 R18 -1.65 % 98.4 km/h 7" – 6" – 6,5" – 7,5" – 8"
235/50 R18 -0.22 % 99.8 km/h 7,5" – 6,5" – 7" – 8" – 8,5"
215/55 R18 Your size 0 % 100.0 km/h —
245/50 R18 +1.24 % 101.2 km/h 7,5" – 7" – 8" – 8,5"
225/55 R18 +1.57 % 101.6 km/h —

19″

Size Difference Actual speed at 100 km/h on the speedometer ETRTO rims Tyres in stock
225/45 R19 -1.24 % 98.8 km/h 7,5" – 7" – 8" – 8,5"
235/45 R19 +0.07 % 100.1 km/h 8" – 7,5" – 8,5" – 9"
245/45 R19 +1.35 % 101.4 km/h 8" – 7,5" – 8,5" – 9"

20″

Size Difference Actual speed at 100 km/h on the speedometer ETRTO rims Tyres in stock
215/45 R20 +1.14 % 101.1 km/h 7" – 7,5" – 8"
245/40 R20 +1.50 % 101.5 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
245/30 R21 -1.90 % 98.1 km/h 8,5" – 8" – 9" —

22″

Size Difference Actual speed at 100 km/h on the speedometer ETRTO rims Tyres in stock
235/30 R22 +0.88 % 100.9 km/h 8,5" —
245/30 R22 +1.76 % 101.8 km/h 8,5" – 8" – 9" —

Sizes equivalent to 215/55 R18:

215/60 R17235/55 R17205/65 R17245/55 R17225/60 R17225/50 R18235/50 R18245/50 R18225/55 R18225/45 R19235/45 R19245/45 R19215/45 R20245/40 R20245/30 R21235/30 R22245/30 R22

215/55 R18 tyres in stock

View all 40 215/55 R18 tyres ›

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