18-inch tire size chart

74 sizes fit 18″ wheels, from 23.9″ to 39.5″ tall. Sizes are grouped by the average height their tires are listed at.

24-inch tires on 18-inch rims

2 sizes whose tires measure 23.5″ to 24.5″ tall on average.

Size	Published height ″	Size code ″	Width ″	Tires
215/35R18	23.90	23.93	8.5	1
205/40R18	24.45–24.50	24.46	8.1	3

25-inch tires on 18-inch rims

9 sizes whose tires measure 24.5″ to 25.5″ tall on average.

Size	Published height ″	Size code ″	Width ″	Tires
245/35R18	24.50–25.00	24.75	9.6	9
285/30R18	24.76–24.80	24.73	11.2	5
215/40R18	24.76–25.00	24.77	8.5	7
295/30R18	25.00	24.97	11.6	9
255/35R18	25.00–25.10	25.03	10.0	18
225/40R18	25.00–25.20	25.09	8.9	27
265/35R18	25.30–25.50	25.30	10.4	13
235/40R18	25.39–25.50	25.40	9.3	23
315/30R18	25.47–25.50	25.44	12.4	7

26-inch tires on 18-inch rims

11 sizes whose tires measure 25.5″ to 26.5″ tall on average.

Size	Published height ″	Size code ″	Width ″	Tires
275/35R18	25.50–25.60	25.58	10.8	18
215/45R18	25.60–25.90	25.62	8.5	9
245/40R18	25.70–25.95	25.72	9.6	31
285/35R18	25.90–26.00	25.85	11.2	5
335/30R18	25.90–25.94	25.91	13.2	4
225/45R18	25.90–26.00	25.97	8.9	35
255/40R18	26.00–26.10	26.03	10.0	20
295/35R18	26.10	26.13	11.6	4
265/40R18	26.30–26.34	26.35	10.4	7
235/45R18	26.30–26.70	26.33	9.3	29
305/35R18	26.40–26.42	26.41	12.0	3

27-inch tires on 18-inch rims

10 sizes whose tires measure 26.5″ to 27.5″ tall on average. 27-inch tires on every wheel size

Size	Published height ″	Size code ″	Width ″	Tires
215/50R18	26.50	26.46	8.5	2
315/35R18	26.64	26.68	12.4	1
245/45R18	26.60–26.70	26.68	9.6	25
275/40R18	26.65–26.70	26.66	10.8	11
225/50R18	26.89–26.90	26.86	8.9	22
285/40R18	27.00	26.98	11.2	2
255/45R18	27.00–27.40	27.04	10.0	8
215/55R18	27.20–27.30	27.31	8.5	11
235/50R18	27.28–27.40	27.25	9.3	26
265/45R18	27.36–27.40	27.39	10.4	2

28-inch tires on 18-inch rims

5 sizes whose tires measure 27.5″ to 28.5″ tall on average. 28-inch tires on every wheel size

Size	Published height ″	Size code ″	Width ″	Tires
345/35R18	27.52–27.52	27.51	13.6	2
245/50R18	27.60–28.10	27.65	9.6	15
225/55R18	27.70–27.80	27.74	8.9	20
235/55R18	28.10–28.20	28.18	9.3	27
295/45R18	28.46	28.45	11.6	1

29-inch tires on 18-inch rims

4 sizes whose tires measure 28.5″ to 29.5″ tall on average. 29-inch tires on every wheel size

Size	Published height ″	Size code ″	Width ″	Tires
225/60R18	28.60–28.62	28.63	8.9	30
245/55R18	28.60–28.62	28.61	9.6	12
255/55R18	29.00–29.02	29.04	10.0	23
235/60R18	29.00–29.10	29.10	9.3	35

30-inch tires on 18-inch rims

3 sizes whose tires measure 29.5″ to 30.5″ tall on average. 30-inch tires on every wheel size

Size	Published height ″	Size code ″	Width ″	Tires
245/60R18	29.50–29.60	29.57	9.6	24
235/65R18	30.00–30.10	30.03	9.3	25
255/60R18	30.00–30.04	30.05	10.0	14

31-inch tires on 18-inch rims

4 sizes whose tires measure 30.5″ to 31.5″ tall on average. 31-inch tires on every wheel size

Size	Published height ″	Size code ″	Width ″	Tires
265/60R18	30.50–30.80	30.52	10.4	29
275/60R18	30.90–31.00	30.99	10.8	4
255/65R18	31.00–31.10	31.05	10.0	16
285/60R18	31.46–31.50	31.46	11.2	9

32-inch tires on 18-inch rims

5 sizes whose tires measure 31.5″ to 32.5″ tall on average. 32-inch tires on every wheel size

Size	Published height ″	Size code ″	Width ″	Tires
245/70R18	31.50–31.54	31.50	9.6	2
265/65R18	31.50–31.60	31.56	10.4	23
255/70R18	32.09–32.30	32.06	10.0	14
275/65R18	32.09–32.44	32.07	10.8	46
245/75R18	32.48	32.47	9.6	1

33-inch tires on 18-inch rims

7 sizes whose tires measure 32.5″ to 33.5″ tall on average. 33-inch tires on every wheel size

Size	Published height ″	Size code ″	Width ″	Tires
305/60R18	32.40–32.70	32.41	12.0	5
265/70R18	32.60–33.03	32.61	10.4	33
33×12.50R18	32.50–33.00	33.00	12.5	11
285/65R18	32.56–33.40	32.59	11.2	15
235/80R18	32.80	32.80	9.3	4
275/70R18	33.19–33.58	33.16	10.8	32
325/60R18	33.35	33.35	12.8	1

34-inch tires on 18-inch rims

3 sizes whose tires measure 33.5″ to 34.5″ tall on average. 34-inch tires on every wheel size

Size	Published height ″	Size code ″	Width ″	Tires
305/65R18	33.58–33.82	33.61	12.0	4
285/70R18	33.70–34.09	33.71	11.2	5
295/70R18	34.29–34.61	34.26	11.6	13

35-inch tires on 18-inch rims

4 sizes whose tires measure 34.5″ to 35.5″ tall on average. 35-inch tires on every wheel size

Size	Published height ″	Size code ″	Width ″	Tires
325/65R18	34.60–34.61	34.63	12.8	2
35×12.50R18	34.50–35.04	35.00	12.5	17
285/75R18	34.80–35.06	34.83	11.2	6
305/70R18	34.80–35.30	34.81	12.0	6

36-inch tires on 18-inch rims

1 size whose tires measure 35.5″ to 36.5″ tall on average. 36-inch tires on every wheel size

Size	Published height ″	Size code ″	Width ″	Tires
315/70R18	35.71	35.36	12.4	1

37-inch tires on 18-inch rims

2 sizes whose tires measure 36.5″ to 37.5″ tall on average. 37-inch tires on every wheel size

Size	Published height ″	Size code ″	Width ″	Tires
37×12.50R18	36.50–36.80	37.00	12.5	8
37×13.50R18	36.50–37.05	37.00	13.5	5

38-inch tires on 18-inch rims

3 sizes whose tires measure 37.5″ to 38.5″ tall on average. 38-inch tires on every wheel size

Size	Published height ″	Size code ″	Width ″	Tires
38×11.50R18	37.50–37.80	38.00	11.5	2
38×15.50R18	37.72	38.00	15.5	1
38×13.50R18	37.66–37.80	38.00	13.5	2

40-inch tires on 18-inch rims

1 size whose tires measure 39.5″ to 40.5″ tall on average. 40-inch tires on every wheel size

Size	Published height ″	Size code ″	Width ″	Tires
40×13.50R18	39.50	40.00	13.5	2