2023 Audi e-tron — S
The 2023 Audi e-tron S shipped with 3 different factory tire sizes, depending on the wheel package it left the factory with (this can also reflect a staggered front/rear setup). Check your tire sidewall or door placard to confirm which one applies to your vehicle.
This trim shipped with more than one tire size (staggered fitment, front/rear, or optional wheel package). Confirm which one matches your vehicle by checking your tire sidewall or door placard.
255/50R20
| Section width | 255 mm |
|---|---|
| Aspect ratio (sidewall height) | 50% (127.5 mm) |
| Rim diameter | 20" |
| Overall tire diameter | ~30" |
| Revolutions per mile | ~671 |
Compare prices at:
265/45R21
| Section width | 265 mm |
|---|---|
| Aspect ratio (sidewall height) | 45% (119.3 mm) |
| Rim diameter | 21" |
| Overall tire diameter | ~30.4" |
| Revolutions per mile | ~664 |
Compare prices at:
285/35R22
| Section width | 285 mm |
|---|---|
| Aspect ratio (sidewall height) | 35% (99.8 mm) |
| Rim diameter | 22" |
| Overall tire diameter | ~29.9" |
| Revolutions per mile | ~676 |
Compare prices at:
What this size means for your Audi e-tron
On the 2023 Audi e-tron S, the factory 255/50R20 measures about 30″ in overall diameter with a 127.5 mm (5″) sidewall, and completes roughly 671 revolutions per mile. Its 50-series aspect ratio gives a balanced everyday-passenger profile — enough sidewall to soak up road shock while keeping steering response crisp. In tire terms it is a large-diameter fitment.
The 255/50R20 and 265/45R21 differ in both width and overall diameter (0.4″, 1.3%), which usually means a staggered front/rear setup — the two sizes are not interchangeable side to side, so match each to its correct axle.
Other 2023 Audi e-tron trims
- Base Model 255/50R20 / 265/45R21
- GT 245/45R20 (Front) / 285/40R20 (Rear) / 265/35R21 (Front) / 305/30R21 (Rear)
- GT RS 245/45R20 (Front) / 285/40R20 (Rear) / 265/35R21 (Front) / 305/30R21 (Rear)
- Sportback 255/50R20 / 265/45R21 / 285/35R22
- Sportback S 255/50R20 / 265/45R21 / 285/35R22
Audi e-tron tire sizes by year
- 2026 Audi e-tron 245/45R20 (Front) / 285/40R20 (Rear) / 265/35R21 (Front) / 305/30R21 (Rear)
- 2025 Audi e-tron 245/45R20 (Front) / 285/40R20 (Rear) / 265/35R21 (Front) / 305/30R21 (Rear)
- 2024 Audi e-tron 245/45R20 (Front) / 285/40R20 (Rear) / 265/35R21 (Front) / 305/30R21 (Rear)
- 2022 Audi e-tron 255/50R20 / 265/45R21
- 2021 Audi e-tron 255/55R19 / 255/50R20
- 2020 Audi e-tron 255/50R20 / 265/45R21
- 2019 Audi e-tron 255/55R19 / 255/50R20
How to read a tire size
A tire size like 225/45R17 breaks down into three parts:
the first number is the section width in millimeters
(the tire's width from sidewall to sidewall), the second is the
aspect ratio — the sidewall's height as a percentage of
that width — and the number after the "R" is the rim
diameter in inches. A letter prefix (P or LT) indicates
Passenger or Light Truck construction; its absence usually means
Euro-metric sizing.
Some trucks and off-road tires instead use "flotation" sizing, like
37X12.50R17 — here the numbers are the tire's overall
diameter and width in inches directly, with the rim diameter last.
Always verify against the tire information placard on your driver's-side door jamb or your owner's manual before purchasing — tire size can vary by factory option package even within the same trim.