2021 Toyota C-HR tire size

Most common factory size

P225/50R18

Tire sizes by trim

Source marks: one source

2021 Toyota C-HR tire size by trim
Size	Trims	Width, mm	Sidewall, % of width	Rim, in	Diameter, in	Sidewall, in	Revs per mile
P225/50R18	XLE FWD, Nightshade FWD, Limited FWD	225	50	18	26.86	4.43	751
P215/60R17	LE FWD	215	60	17	27.16	5.08	743

What P225/50R18 means
Part	Number	Meaning
Type	P	Passenger car tire.
Width	225 mm	Tread width. 8.9 in.
Sidewall	50	Sidewall height is 50% 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 P225/50R18
Size	Rim, in	Diameter, in	Change	Speedo reads at 60 mph
225/45R19	19	26.97	+0.4%	59.7 mph
225/55R17	17	26.74	-0.4%	60.3 mph
245/40R19	19	26.72	-0.5%	60.3 mph
205/60R17	17	26.69	-0.6%	60.4 mph
255/40R19	19	27.03	+0.6%	59.6 mph
245/45R18	18	26.68	-0.7%	60.4 mph
255/45R18	18	27.04	+0.7%	59.6 mph
195/50R19	19	26.68	-0.7%	60.4 mph

Sizes within 3% of P215/60R17
Size	Rim, in	Diameter, in	Change	Speedo reads at 60 mph
235/55R17	17	27.18	+0.1%	60.0 mph
235/60R16	16	27.10	-0.2%	60.1 mph
235/50R18	18	27.25	+0.3%	59.8 mph
255/50R17	17	27.04	-0.4%	60.3 mph
255/45R18	18	27.04	-0.4%	60.3 mph
205/70R16	16	27.30	+0.5%	59.7 mph
215/55R18	18	27.31	+0.6%	59.7 mph
215/65R16	16	27.00	-0.6%	60.3 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.