tiresizelab.com

2024 Audi Q7 Tire Fitment

2 factory tire sizes across trims — select yours below.

Trim fitment

Trim(s) OEM size
Premium 255/55R19 Specs →
Prestige 285/40R21 Specs →
OEM size
255/55R19
Diameter
30.04″
Sidewall
5.52″
Revs / mile
671

About 2024 Audi Q7 fitment

The 2024 Audi Q7 Premium ships from the factory with 255/55R19 tires, giving a 30.04″ overall diameter and 671 revs per mile. This is the reference size the factory speedometer, odometer, ABS, and TPMS were calibrated against, so any replacement tire should stay close to 30.04″ to preserve correct readings. This model year ships in multiple configurations with different OEM tire sizes (255/55R19, 285/40R21), so confirm your exact trim badge before ordering. The smallest recommended upsize is 245/55R20 — a 1.89% diameter change — which keeps the speedometer inside factory tolerance while adding marginal ride height and sidewall compliance. The most aggressive option shown, 275/55R19, runs 2.88% taller and will likely need clearance checking on stock suspension. For a direct replacement, look for brands offering 255/55R19 in all-season, highway, or terrain-appropriate compounds — the OEM spec typically emphasizes fuel economy and tread life over grip, so aftermarket replacements often unlock better wet performance or off-road capability at similar cost. Before committing to an upsize, confirm wheel-well clearance at full steering lock and suspension compression, and verify the chosen size does not conflict with snow chains, tire-fit sensors, or any lift-kit hardware already installed.

Upsize options

Size Diameter Δ vs OEM
245/55R20 30.61″ +1.89% Details →
245/60R19 30.57″ +1.77% Details →
275/45R21 30.74″ +2.33% Details →
265/55R19 30.48″ +1.44% Details →
275/50R20 30.83″ +2.61% Details →
265/50R20 30.43″ +1.30% Details →
265/45R21 30.39″ +1.15% Details →
275/55R19 30.91″ +2.88% Details →

Check speedometer error before upsizing

Type to search · try 275/65R18 or "33" for inch aliases
Common upsizes from 255/55R19:
Don't know your stock size? Load it by vehicle:

255/55R19

Diameter
30.04″ / 763.1mm
Section Width
10.04
Sidewall
5.52″ / 140.25mm
Circumference
94.38
Revs/Mile
671
See tires in 255/55R19

245/55R20

Diameter
30.61″ / 777.5mm
Section Width
9.65
Sidewall
5.31″ / 134.75mm
Circumference
96.16
Revs/Mile
659
See tires in 245/55R20
255/55R19 · 30.04245/55R20 · 30.61

Speedometer & Diameter Impact

Different rim — new wheels required
Diameter Change
+1.89%
Sidewall Change
-0.21″
Revs/Mile Δ
-12
mph

At an indicated 60 mph, your actual speed is 61.13 mph (98.38 km/h). Your speedometer reads 1.89% low versus actual speed.

Speedometer impact if you upsize from 255/55R19

Audi Q7 — other model years