Tyre size calculator

305
25
20

Equivalent sizes for the 305/25 R20 tyre

Sidewall height 76 mmDiameter 661 mm Circumference 2075 mmRevolutions/km 482

Approved rim widths according to ETRTO: 11" – 10,5" – 11,5"

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

19″

Size Difference Actual speed at 100 km/h on the speedometer ETRTO rims Tyres in stock
275/30 R19 -1.92 % 98.1 km/h 9,5" – 9" – 10"
NexenHankookBridgestone 4 models in stockFrom CHF 139.00 Summer4
285/30 R19 -1.04 % 99.0 km/h 10" – 9,5" – 10,5"
LaufennYokohamaPirelli 10 models in stockFrom CHF 177.00 Summer7 Winter3
295/30 R19 -0.12 % 99.9 km/h 10,5" – 10" – 11"
Hankook 1 model in stockFrom CHF 241.00 Winter1
305/30 R19 +0.77 % 100.8 km/h 11" – 10,5" – 11,5"
Nexen 1 model in stockFrom CHF 197.00 Summer1

20″

Size Difference Actual speed at 100 km/h on the speedometer ETRTO rims Tyres in stock
285/25 R20 -1.50 % 98.5 km/h 10,5" —
295/25 R20 -0.73 % 99.3 km/h 10,5" – 10" – 11" —
305/25 R20 Your size 0 % 100.0 km/h 11" – 10,5" – 11,5" —
275/30 R20 +1.92 % 101.9 km/h 9,5" – 9" – 10"
HankookNexenContinental 18 models in stockFrom CHF 174.00 Summer9 Winter6 All-season3

Sizes equivalent to 305/25 R20:

275/30 R19285/30 R19295/30 R19305/30 R19285/25 R20295/25 R20275/30 R20

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