Buick Regal tire size
The most common factory tire size for the Buick Regal is 235/50R18, on 22 of the 50 year and trim fits listed. Each year below lists the sizes its trims were built with (2011 to 2020). Pick your year and trim to see the tires that fit.
Buick Regal tire sizes by year
20204 sizes · 6 trims
20194 sizes · 5 trims
20184 sizes · 5 trims
20174 sizes · 9 trims
255/35R20load index 97, speed rating Y
P245/40R19load index 94, speed rating W
20165 sizes · 10 trims
255/35R20load index 97, speed rating Y
P245/40R19load index 94, speed rating W
20155 sizes · 10 trims
255/35R20load index 97, speed rating Y
P245/40R19load index 94, speed rating W
20145 sizes · 12 trims
255/35R20load index 97, speed rating Y
P245/40R19load index 94, speed rating W
20135 sizes · 9 trims
20125 sizes · 9 trims
20112 sizes · 3 trims
P245/40R19load index 94, speed rating W
Check your own tire
A trim can be sold with more than one wheel size. The size printed on the sidewall of your current tire, or on the placard in the driver's door jamb, is the one your vehicle has.