Tyre size calculator
Equivalent sizes for the 255/55 R20 tyre
Sidewall height 140 mmDiameter 789 mm Circumference 2477 mmRevolutions/km 404
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.
19″
| Size | Difference | Actual speed at 100 km/h on the speedometer | ETRTO rims | Tyres in stock |
|---|---|---|---|---|
| 275/55 R19 | -0.42 % | 99.6 km/h | — |
20″
| Size | Difference | Actual speed at 100 km/h on the speedometer | ETRTO rims | Tyres in stock |
|---|---|---|---|---|
| 265/50 R20 | -1.97 % | 98.0 km/h | 8,5" – 7,5" – 8" – 9" – 9,5" | |
| 275/50 R20 | -0.68 % | 99.3 km/h | 8,5" – 7,5" – 8" – 9" – 9,5" | |
| 255/55 R20 Your size | 0 % | 100.0 km/h | — | |
| 285/50 R20 | +0.58 % | 100.6 km/h | 9" – 8" – 8,5" – 9,5" – 10" |
21″
| Size | Difference | Actual speed at 100 km/h on the speedometer | ETRTO rims | Tyres in stock |
|---|---|---|---|---|
| 275/45 R21 | -0.97 % | 99.0 km/h | 9" – 8,5" – 9,5" – 10" – 10,5" |
22″
| Size | Difference | Actual speed at 100 km/h on the speedometer | ETRTO rims | Tyres in stock |
|---|---|---|---|---|
| 275/40 R22 | -1.22 % | 98.8 km/h | 9,5" – 9" – 10" – 10,5" – 11" |
Sizes equivalent to 255/55 R20:
275/55 R19265/50 R20275/50 R20285/50 R20275/45 R21275/40 R22
255/55 R20 tyres in stock
View all 23 255/55 R20 tyres ›
This information is provided for guidance only and does not engage Rupteur's liability in any way.