Tyre size calculator

Equivalent sizes for the 245/30 R20 tyre

Sidewall height 74 mmDiameter 655 mm Circumference 2058 mmRevolutions/km 486

Approved rim widths according to ETRTO: 8,5" – 8" – 9"

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

19″

Size Difference Actual speed at 100 km/h on the speedometer ETRTO rims Tyres in stock
235/35 R19 -1.20 % 98.8 km/h 8,5" – 8" – 9" – 9,5"
275/30 R19 -1.12 % 98.9 km/h 9,5" – 9" – 10"
245/35 R19 -0.16 % 99.8 km/h 8,5" – 8" – 9" – 9,5"
255/35 R19 +0.93 % 100.9 km/h 9" – 8,5" – 9,5" – 10"
225/40 R19 +1.16 % 101.2 km/h 8" – 7,5" – 8,5" – 9"
265/35 R19 +1.98 % 102.0 km/h 9,5" – 9" – 10" – 10,5"

20″

Size Difference Actual speed at 100 km/h on the speedometer ETRTO rims Tyres in stock
225/30 R20 -1.86 % 98.1 km/h 8" —
235/30 R20 -0.93 % 99.1 km/h 8,5"
245/30 R20 Your size 0 % 100.0 km/h 8,5" – 8" – 9"
255/30 R20 +0.89 % 100.9 km/h 9" – 8,5" – 9,5"
225/35 R20 +1.59 % 101.6 km/h 8" – 7,5" – 8,5" – 9"
265/30 R20 +1.82 % 101.8 km/h 9,5" – 9" – 10"

Sizes equivalent to 245/30 R20:

235/35 R19275/30 R19245/35 R19255/35 R19225/40 R19265/35 R19225/30 R20235/30 R20255/30 R20225/35 R20265/30 R20

245/30 R20 tyres in stock

View all 9 245/30 R20 tyres ›

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