Tyre size calculator

Equivalent sizes for the 265/45 R18 tyre

Sidewall height 119 mmDiameter 696 mm Circumference 2186 mmRevolutions/km 458

Approved rim widths according to ETRTO: 9" – 8,5" – 9,5" – 10"

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
235/55 R17 -0.77 % 99.2 km/h —
245/55 R17 +0.80 % 100.8 km/h —

18″

Size Difference Actual speed at 100 km/h on the speedometer ETRTO rims Tyres in stock
255/45 R18 -1.28 % 98.7 km/h 8,5" – 8" – 9" – 9,5"
235/50 R18 -0.51 % 99.5 km/h 7,5" – 6,5" – 7" – 8" – 8,5"
265/45 R18 Your size 0 % 100.0 km/h 9" – 8,5" – 9,5" – 10"
245/50 R18 +0.95 % 101.0 km/h 7,5" – 7" – 8" – 8,5"
275/45 R18 +1.28 % 101.3 km/h 9" – 8,5" – 9,5" – 10" – 10,5"

19″

Size Difference Actual speed at 100 km/h on the speedometer ETRTO rims Tyres in stock
285/35 R19 -1.97 % 98.0 km/h 10" – 9,5" – 10,5" – 11"
255/40 R19 -1.31 % 98.7 km/h 9" – 8,5" – 9,5" – 10"
295/35 R19 -0.95 % 99.1 km/h 10,5" – 10" – 11" – 11,5"
235/45 R19 -0.22 % 99.8 km/h 8" – 7,5" – 8,5" – 9"
265/40 R19 -0.15 % 99.9 km/h 9,5" – 9" – 10" – 10,5"
275/40 R19 +0.99 % 101.0 km/h 9,5" – 9" – 10" – 10,5" – 11"
245/45 R19 +1.06 % 101.1 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
295/30 R20 -1.53 % 98.5 km/h 10,5" – 10" – 11"
255/35 R20 -1.31 % 98.7 km/h 9" – 8,5" – 9,5" – 10"
265/35 R20 -0.33 % 99.7 km/h 9,5" – 9" – 10" – 10,5"
275/35 R20 +0.69 % 100.7 km/h 9,5" – 9" – 10" – 10,5" – 11"
245/40 R20 +1.20 % 101.2 km/h 8,5" – 8" – 9" – 9,5"
285/35 R20 +1.68 % 101.7 km/h 10" – 9,5" – 10,5" – 11"

21″

Size Difference Actual speed at 100 km/h on the speedometer ETRTO rims Tyres in stock
255/30 R21 -1.35 % 98.7 km/h 9" – 8,5" – 9,5"
265/30 R21 -0.47 % 99.5 km/h 9,5" – 9" – 10" —

22″

Size Difference Actual speed at 100 km/h on the speedometer ETRTO rims Tyres in stock
235/30 R22 +0.58 % 100.6 km/h 8,5" —
285/25 R22 +0.80 % 100.8 km/h 10,5" —
245/30 R22 +1.46 % 101.5 km/h 8,5" – 8" – 9" —

Sizes equivalent to 265/45 R18:

235/55 R17245/55 R17255/45 R18235/50 R18245/50 R18275/45 R18285/35 R19255/40 R19295/35 R19235/45 R19265/40 R19275/40 R19245/45 R19295/30 R20255/35 R20265/35 R20275/35 R20245/40 R20285/35 R20255/30 R21265/30 R21235/30 R22285/25 R22245/30 R22

265/45 R18 tyres in stock

View all 1 265/45 R18 tyres ›

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