2022 Mazda MAZDA3 tire size

Most common factory size

P215/45R18

Tire sizes by trim

Source marks: one source

2022 Mazda MAZDA3 tire size by trim
Size	Trims	Width, mm	Sidewall, % of width	Rim, in	Diameter, in	Sidewall, in	Revs per mile
P215/45R18	Premium Plus AWD, Carbon Edition FWD, Preferred FWD, Sedan Preferred AWD, Premium FWD, Sedan Premium AWD +2 more	215	45	18	25.62	3.81	787
P205/60R16	2.0 FWD, 2.5 S FWD	205	60	16	25.69	4.84	785

What P215/45R18 means
Part	Number	Meaning
Type	P	Passenger car tire.
Width	215 mm	Tread width. 8.5 in.
Sidewall	45	Sidewall height is 45% of the width.
Construction	R	Radial tire.
Rim	18 in	Fits 18 in wheels.

Within 3% of the stock diameter. A common shop guideline, not a maker spec.

Sizes within 3% of P215/45R18
Size	Rim, in	Diameter, in	Change	Speedo reads at 60 mph
275/35R18	18	25.58	-0.2%	60.1 mph
245/45R17	17	25.68	+0.2%	59.9 mph
245/40R18	18	25.72	+0.4%	59.8 mph
285/30R19	19	25.73	+0.4%	59.7 mph
245/35R19	19	25.75	+0.5%	59.7 mph
235/35R19	19	25.48	-0.6%	60.3 mph
215/50R17	17	25.46	-0.6%	60.4 mph
235/40R18	18	25.40	-0.8%	60.5 mph

Sizes within 3% of P205/60R16
Size	Rim, in	Diameter, in	Change	Speedo reads at 60 mph
245/45R17	17	25.68	-0.0%	60.0 mph
225/55R16	16	25.74	+0.2%	59.9 mph
225/50R17	17	25.86	+0.7%	59.6 mph
205/55R17	17	25.88	+0.8%	59.6 mph
205/65R15	15	25.49	-0.8%	60.5 mph
215/50R17	17	25.46	-0.9%	60.5 mph
255/45R17	17	26.04	+1.4%	59.2 mph
235/45R17	17	25.33	-1.4%	60.8 mph

Checked against 292 factory sizes listed for 2009-2027 US models.

Tire pressure is on the driver door sticker. Not in this data.

Optional wheel packages may differ.