Tyre size calculator

Equivalent sizes for the 225/45 R19 tyre

Sidewall height 101 mmDiameter 685 mm Circumference 2152 mmRevolutions/km 465

Approved rim widths according to ETRTO: 7,5" – 7" – 8" – 8,5"

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

18″

Size Difference Actual speed at 100 km/h on the speedometer ETRTO rims Tyres in stock
245/45 R18 -1.08 % 98.9 km/h 8" – 7,5" – 8,5" – 9"
225/50 R18 -0.41 % 99.6 km/h 7" – 6" – 6,5" – 7,5" – 8"
255/45 R18 +0.26 % 100.3 km/h 8,5" – 8" – 9" – 9,5"
235/50 R18 +1.04 % 101.0 km/h 7,5" – 6,5" – 7" – 8" – 8,5"
215/55 R18 +1.26 % 101.3 km/h —

19″

Size Difference Actual speed at 100 km/h on the speedometer ETRTO rims Tyres in stock
245/40 R19 -0.93 % 99.1 km/h 8,5" – 8" – 9" – 9,5"
225/45 R19 Your size 0 % 100.0 km/h 7,5" – 7" – 8" – 8,5"
255/40 R19 +0.22 % 100.2 km/h 9" – 8,5" – 9,5" – 10"
235/45 R19 +1.33 % 101.3 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
235/35 R20 -1.82 % 98.2 km/h 8,5" – 8" – 9" – 9,5"
245/35 R20 -0.82 % 99.2 km/h 8,5" – 8" – 9" – 9,5"
255/35 R20 +0.22 % 100.2 km/h 9" – 8,5" – 9,5" – 10"

21″

Size Difference Actual speed at 100 km/h on the speedometer ETRTO rims Tyres in stock
245/30 R21 -0.67 % 99.3 km/h 8,5" – 8" – 9" —
255/30 R21 +0.19 % 100.2 km/h 9" – 8,5" – 9,5"

Sizes equivalent to 225/45 R19:

245/45 R18225/50 R18255/45 R18235/50 R18215/55 R18245/40 R19255/40 R19235/45 R19235/35 R20245/35 R20255/35 R20245/30 R21255/30 R21

225/45 R19 tyres in stock

View all 35 225/45 R19 tyres ›

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