Every factory tire size for the Infiniti Q50, with the best-value options ranked by real cost-per-mile. Free 2-day nationwide delivery.
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The Infiniti Q50 most commonly uses 225/45R18 tires from the factory. Other factory fitments include 245/40R19. Always confirm the exact size on your driver-door jamb, since trim and wheel package can change the fitment on a Infiniti Q50. At TuahFix you can compare every 225/45R18 tire ranked by real cost-per-mile, from budget to premium long-life models, with free two-day Amazon-verified delivery and easy returns. South Florida Infiniti Q50 owners can add same-day mobile installation. Whether you need all-season, touring, or performance tires for your Infiniti Q50, ordering online ships faster and costs less than a local shop — see the full 225/45R18 lineup and the best-value pick for your Infiniti Q50 below. TuahFix compares top brands like Michelin, Goodyear, Continental, and Bridgestone so Infiniti Q50 owners get the lowest cost-per-mile, not just the lowest sticker price.
The exact tire size for your Infiniti Q50 is printed on a sticker inside the driver-side door jamb and on the tire sidewall. Trim level, wheel package, and model year can change the fitment, so always verify before ordering. Tap any size above to compare every available tire ranked by cost-per-mile.