2026 Audi Q5 — Sportback
The 2026 Audi Q5 Sportback shipped with 2 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.
235/55R19
| Section width | 235 mm |
|---|---|
| Aspect ratio (sidewall height) | 55% (129.3 mm) |
| Rim diameter | 19" |
| Overall tire diameter | ~29.2" |
| Revolutions per mile | ~691 |
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255/45R20
| Section width | 255 mm |
|---|---|
| Aspect ratio (sidewall height) | 45% (114.8 mm) |
| Rim diameter | 20" |
| Overall tire diameter | ~29" |
| Revolutions per mile | ~695 |
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What this size means for your Audi Q5
On the 2026 Audi Q5 Sportback, the factory 235/55R19 measures about 29.2″ in overall diameter with a 129.3 mm (5.1″) sidewall, and completes roughly 691 revolutions per mile. Its 55-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 passenger (P-metric / Euro-metric) size.
The 235/55R19 and 255/45R20 roll within 0.2″ (0.7%) of each other in overall diameter, so they are interchangeable from a speedometer standpoint — the second size is an optional wheel package rather than a different rolling size.
Other 2026 Audi Q5 trims
- Premium 235/60R18 / 235/55R19
- Premium Plus 235/55R19 / 255/45R20
- Prestige 235/55R19 / 255/45R20
Audi Q5 tire sizes by year
- 2025 Audi Q5 235/55R19 / 255/45R20
- 2024 Audi Q5 235/55R19 / 255/45R20
- 2023 Audi Q5 235/55R19 / 255/45R20
- 2022 Audi Q5 235/55R19 / 255/45R20
- 2021 Audi Q5 235/55R19 / 255/45R20
- 2020 Audi Q5 235/60R18 / 235/55R19
- 2019 Audi Q5 235/60R18 / 235/55R19
- 2018 Audi Q5 235/60R18 / 235/55R19
- 2017 Audi Q5 235/60R18 / 235/55R19
- 2016 Audi Q5 235/55R19 / 255/45R20
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.