2021 Nissan Altima tire size

Most common factory size

P215/55R17

Tire sizes by trim

Source marks: one source

2021 Nissan Altima tire size by trim
Size	Trims	Width, mm	Sidewall, % of width	Rim, in	Diameter, in	Sidewall, in	Revs per mile
P215/55R17	2.5 SV FWD, 2.5 SV AWD, 2.5 SL FWD, 2.5 SL AWD	215	55	17	26.31	4.66	767
P235/40R19	2.5 SR FWD, 2.5 SR AWD, VC-T SR FWD, 2.5 Platinum AWD	235	40	19	26.40	3.70	764
P215/60R16	2.5 S FWD	215	60	16	26.16	5.08	771

What P215/55R17 means
Part	Number	Meaning
Type	P	Passenger car tire.
Width	215 mm	Tread width. 8.5 in.
Sidewall	55	Sidewall height is 55% of the width.
Construction	R	Radial tire.
Rim	17 in	Fits 17 in wheels.

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

Sizes within 3% of P215/55R17
Size	Rim, in	Diameter, in	Change	Speedo reads at 60 mph
235/45R18	18	26.33	+0.1%	60.0 mph
235/50R17	17	26.25	-0.2%	60.1 mph
195/60R17	17	26.21	-0.4%	60.2 mph
215/50R18	18	26.46	+0.6%	59.7 mph
215/60R16	16	26.16	-0.6%	60.4 mph
205/65R16	16	26.49	+0.7%	59.6 mph
255/45R17	17	26.04	-1.0%	60.6 mph
255/40R18	18	26.03	-1.1%	60.6 mph

Sizes within 3% of P235/40R19
Size	Rim, in	Diameter, in	Change	Speedo reads at 60 mph
215/50R18	18	26.46	+0.2%	59.9 mph
235/35R20	20	26.48	+0.3%	59.8 mph
235/45R18	18	26.33	-0.3%	60.2 mph
275/30R20	20	26.50	+0.4%	59.8 mph
265/35R19	19	26.30	-0.4%	60.2 mph
265/30R20	20	26.26	-0.5%	60.3 mph
275/35R19	19	26.58	+0.7%	59.6 mph
305/30R19	19	26.20	-0.7%	60.5 mph

Sizes within 3% of P215/60R16
Size	Rim, in	Diameter, in	Change	Speedo reads at 60 mph
195/60R17	17	26.21	+0.2%	59.9 mph
235/50R17	17	26.25	+0.4%	59.8 mph
255/45R17	17	26.04	-0.5%	60.3 mph
205/70R15	15	26.30	+0.5%	59.7 mph
215/55R17	17	26.31	+0.6%	59.6 mph
205/55R17	17	25.88	-1.1%	60.6 mph
225/50R17	17	25.86	-1.1%	60.7 mph
205/65R16	16	26.49	+1.3%	59.2 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.