2026 Jeep Grand Cherokee tire size

Most common factory size

P265/60R18

Tire sizes by trim

Source marks: one source

2026 Jeep Grand Cherokee tire size by trim
Size	Trims	Width, mm	Sidewall, % of width	Rim, in	Diameter, in	Sidewall, in	Revs per mile
P265/60R18	Laredo 4x2, Laredo 4WD, Laredo X 4WD, Laredo X 4x2, Limited 4x2, Laredo Altitude 4x2 +4 more	265	60	18	30.52	6.26	661
P275/45R21	Summit 4WD	275	45	21	30.74	4.87	656

What P265/60R18 means
Part	Number	Meaning
Type	P	Passenger car tire.
Width	265 mm	Tread width. 10.4 in.
Sidewall	60	Sidewall height is 60% 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 P265/60R18
Size	Rim, in	Diameter, in	Change	Speedo reads at 60 mph
245/70R17	17	30.50	-0.1%	60.0 mph
265/65R17	17	30.56	+0.1%	59.9 mph
265/55R19	19	30.48	-0.1%	60.1 mph
275/55R19	19	30.91	+1.3%	59.2 mph
235/60R19	19	30.10	-1.4%	60.8 mph
255/65R17	17	30.05	-1.5%	60.9 mph
275/60R18	18	30.99	+1.5%	59.1 mph
255/60R18	18	30.05	-1.5%	60.9 mph

Sizes within 3% of P275/45R21
Size	Rim, in	Diameter, in	Change	Speedo reads at 60 mph
245/45R22	22	30.68	-0.2%	60.1 mph
275/50R20	20	30.83	+0.3%	59.8 mph
275/40R22	22	30.66	-0.3%	60.2 mph
285/40R22	22	30.98	+0.8%	59.6 mph
255/45R22	22	31.04	+0.9%	59.4 mph
295/45R20	20	30.45	-0.9%	60.6 mph
255/50R21	21	31.04	+1.0%	59.4 mph
255/55R20	20	31.04	+1.0%	59.4 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.