Tire Size Chart: Height, Width and Sidewall by Wheel Size

By ThreePiece Published Oct 2nd 2026

Editorial note: ThreePiece.us fitment guides are maintained by our wheel and tire fitment team.

Overall diameter, section width, sidewall height, circumference and revolutions per mile for 237 common tire sizes on 15 to 24 inch wheels. Pick your wheel size, then tap any column heading to sort.

How to use this tire size chart

Find your size. It is on the tire sidewall and on the sticker in the driver’s door jamb, for example 265/70R17.
Jump to your wheel size and find the row. Note the overall diameter: that is the number to match when you change sizes.
Pick a new size within about 3% of that diameter to keep the speedometer close. The tire size comparison tool shows the exact difference, and the tire size calculator works out any size not listed here.

Every number in the chart comes from the standard tire formulas:

Sidewall height (mm) = section width × aspect ratio ÷ 100
Overall diameter (in) = wheel diameter + 2 × sidewall height ÷ 25.4
Circumference (in) = π (3.1416) × overall diameter
Revolutions per mile = 63,360 ÷ circumference

Flotation truck sizes such as 33x12.50R20 give the overall diameter (33 in) and width (12.50 in) directly; sidewall = (diameter − wheel diameter) ÷ 2. Real tires can measure a little different from the math because of tread depth, construction and rim width, so check the exact tire’s listed dimensions for tight clearance checks.

15-inch tire sizes

18 common sizes for 15 inch wheels, from 23.7 to 35.0 inches tall.

15-inch tire size chart

175/65R15	175	6.9	114	4.48	23.96	75.3	842
185/60R15	185	7.3	111	4.37	23.74	74.6	850
185/65R15	185	7.3	120	4.73	24.47	76.9	824
195/60R15	195	7.7	117	4.61	24.21	76.1	833
195/65R15	195	7.7	127	4.99	24.98	78.5	807
205/60R15	205	8.1	123	4.84	24.69	77.6	817
205/65R15	205	8.1	133	5.25	25.49	80.1	791
205/70R15	205	8.1	144	5.65	26.30	82.6	767
215/70R15	215	8.5	151	5.93	26.85	84.4	751
215/75R15	215	8.5	161	6.35	27.70	87.0	728
225/70R15	225	8.9	158	6.20	27.40	86.1	736
225/75R15	225	8.9	169	6.64	28.29	88.9	713
235/75R15	235	9.3	176	6.94	28.88	90.7	698
30x9.50R15	241.3	9.5	191	7.50	30.00	94.2	672
31x10.50R15	266.7	10.5	203	8.00	31.00	97.4	651
32x11.50R15	292.1	11.5	216	8.50	32.00	100.5	630
33x12.50R15	317.5	12.5	229	9.00	33.00	103.7	611
35x12.50R15	317.5	12.5	254	10.00	35.00	110.0	576

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16-inch tire sizes

28 common sizes for 16 inch wheels, from 24.1 to 34.6 inches tall.

16-inch tire size chart

195/55R16	195	7.7	107	4.22	24.44	76.8	825
195/75R16	195	7.7	146	5.76	27.52	86.4	733
205/50R16	205	8.1	103	4.04	24.07	75.6	838
205/55R16	205	8.1	113	4.44	24.88	78.2	811
205/60R16	205	8.1	123	4.84	25.69	80.7	785
205/65R16	205	8.1	133	5.25	26.49	83.2	761
205/70R16	205	8.1	144	5.65	27.30	85.8	739
215/55R16	215	8.5	118	4.66	25.31	79.5	797
215/60R16	215	8.5	129	5.08	26.16	82.2	771
215/65R16	215	8.5	140	5.50	27.00	84.8	747
215/70R16	215	8.5	151	5.93	27.85	87.5	724
215/85R16	215	8.5	183	7.19	30.39	95.5	664
225/55R16	225	8.9	124	4.87	25.74	80.9	783
225/60R16	225	8.9	135	5.31	26.63	83.7	757
225/65R16	225	8.9	146	5.76	27.52	86.4	733
225/70R16	225	8.9	158	6.20	28.40	89.2	710
225/75R16	225	8.9	169	6.64	29.29	92.0	689
235/60R16	235	9.3	141	5.55	27.10	85.1	744
235/65R16	235	9.3	153	6.01	28.03	88.1	720
235/70R16	235	9.3	165	6.48	28.95	91.0	697
235/85R16	235	9.3	200	7.86	31.73	99.7	636
245/70R16	245	9.6	172	6.75	29.50	92.7	684
245/75R16	245	9.6	184	7.23	30.47	95.7	662
255/70R16	255	10.0	179	7.03	30.06	94.4	671
265/70R16	265	10.4	186	7.30	30.61	96.2	659
265/75R16	265	10.4	199	7.82	31.65	99.4	637
285/75R16	285	11.2	214	8.42	32.83	103.1	614
315/75R16	315	12.4	236	9.30	34.60	108.7	583

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17-inch tire sizes

42 common sizes for 17 inch wheels, from 23.5 to 37.0 inches tall.

17-inch tire size chart

205/40R17	205	8.1	82	3.23	23.46	73.7	860
205/45R17	205	8.1	92	3.63	24.26	76.2	831
205/50R17	205	8.1	103	4.04	25.07	78.8	804
205/55R17	205	8.1	113	4.44	25.88	81.3	779
215/40R17	215	8.5	86	3.39	23.77	74.7	848
215/45R17	215	8.5	97	3.81	24.62	77.3	819
215/50R17	215	8.5	108	4.23	25.46	80.0	792
215/55R17	215	8.5	118	4.66	26.31	82.7	767
215/60R17	215	8.5	129	5.08	27.16	85.3	743
215/65R17	215	8.5	140	5.50	28.00	88.0	720
225/45R17	225	8.9	101	3.99	24.97	78.5	808
225/50R17	225	8.9	113	4.43	25.86	81.2	780
225/55R17	225	8.9	124	4.87	26.74	84.0	754
225/60R17	225	8.9	135	5.31	27.63	86.8	730
225/65R17	225	8.9	146	5.76	28.52	89.6	707
235/45R17	235	9.3	106	4.16	25.33	79.6	796
235/50R17	235	9.3	118	4.63	26.25	82.5	768
235/55R17	235	9.3	129	5.09	27.18	85.4	742
235/60R17	235	9.3	141	5.55	28.10	88.3	718
235/65R17	235	9.3	153	6.01	29.03	91.2	695
235/70R17	235	9.3	165	6.48	29.95	94.1	673
235/75R17	235	9.3	176	6.94	30.88	97.0	653
235/80R17	235	9.3	188	7.40	31.80	99.9	634
245/40R17	245	9.6	98	3.86	24.72	77.6	816
245/45R17	245	9.6	110	4.34	25.68	80.7	785
245/65R17	245	9.6	159	6.27	29.54	92.8	683
245/70R17	245	9.6	172	6.75	30.50	95.8	661
245/75R17	245	9.6	184	7.23	31.47	98.9	641
255/40R17	255	10.0	102	4.02	25.03	78.6	806
255/65R17	255	10.0	166	6.53	30.05	94.4	671
255/70R17	255	10.0	179	7.03	31.06	97.6	649
255/75R17	255	10.0	191	7.53	32.06	100.7	629
265/65R17	265	10.4	172	6.78	30.56	96.0	660
265/70R17	265	10.4	186	7.30	31.61	99.3	638
285/70R17	285	11.2	200	7.85	32.71	102.8	617
285/75R17	285	11.2	214	8.42	33.83	106.3	596
295/70R17	295	11.6	207	8.13	33.26	104.5	606
315/70R17	315	12.4	221	8.68	34.36	108.0	587
33x12.50R17	317.5	12.5	203	8.00	33.00	103.7	611
35x12.50R17	317.5	12.5	229	9.00	35.00	110.0	576
37x12.50R17	317.5	12.5	254	10.00	37.00	116.2	545
37x13.50R17	342.9	13.5	254	10.00	37.00	116.2	545

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18-inch tire sizes

41 common sizes for 18 inch wheels, from 24.8 to 37.0 inches tall.

18-inch tire size chart

215/45R18	215	8.5	97	3.81	25.62	80.5	787
215/55R18	215	8.5	118	4.66	27.31	85.8	738
225/40R18	225	8.9	90	3.54	25.09	78.8	804
225/45R18	225	8.9	101	3.99	25.97	81.6	777
225/50R18	225	8.9	113	4.43	26.86	84.4	751
225/55R18	225	8.9	124	4.87	27.74	87.2	727
225/60R18	225	8.9	135	5.31	28.63	89.9	704
235/40R18	235	9.3	94	3.70	25.40	79.8	794
235/45R18	235	9.3	106	4.16	26.33	82.7	766
235/50R18	235	9.3	118	4.63	27.25	85.6	740
235/55R18	235	9.3	129	5.09	28.18	88.5	716
235/60R18	235	9.3	141	5.55	29.10	91.4	693
235/65R18	235	9.3	153	6.01	30.03	94.3	672
245/35R18	245	9.6	86	3.38	24.75	77.8	815
245/40R18	245	9.6	98	3.86	25.72	80.8	784
245/45R18	245	9.6	110	4.34	26.68	83.8	756
245/50R18	245	9.6	123	4.82	27.65	86.9	730
245/55R18	245	9.6	135	5.31	28.61	89.9	705
245/60R18	245	9.6	147	5.79	29.57	92.9	682
255/35R18	255	10.0	89	3.51	25.03	78.6	806
255/40R18	255	10.0	102	4.02	26.03	81.8	775
255/45R18	255	10.0	115	4.52	27.04	84.9	746
255/55R18	255	10.0	140	5.52	29.04	91.2	694
255/60R18	255	10.0	153	6.02	30.05	94.4	671
255/65R18	255	10.0	166	6.53	31.05	97.6	650
255/70R18	255	10.0	179	7.03	32.06	100.7	629
265/35R18	265	10.4	93	3.65	25.30	79.5	797
265/40R18	265	10.4	106	4.17	26.35	82.8	765
265/60R18	265	10.4	159	6.26	30.52	95.9	661
265/65R18	265	10.4	172	6.78	31.56	99.2	639
265/70R18	265	10.4	186	7.30	32.61	102.4	619
275/35R18	275	10.8	96	3.79	25.58	80.4	788
275/40R18	275	10.8	110	4.33	26.66	83.8	756
275/65R18	275	10.8	179	7.04	32.07	100.8	629
275/70R18	275	10.8	193	7.58	33.16	104.2	608
285/35R18	285	11.2	100	3.93	25.85	81.2	780
285/65R18	285	11.2	185	7.29	32.59	102.4	619
295/70R18	295	11.6	207	8.13	34.26	107.6	589
33x12.50R18	317.5	12.5	191	7.50	33.00	103.7	611
35x12.50R18	317.5	12.5	216	8.50	35.00	110.0	576
37x12.50R18	317.5	12.5	241	9.50	37.00	116.2	545

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19-inch tire sizes

31 common sizes for 19 inch wheels, from 25.0 to 32.5 inches tall.

19-inch tire size chart

225/35R19	225	8.9	79	3.10	25.20	79.2	800
225/40R19	225	8.9	90	3.54	26.09	82.0	773
225/45R19	225	8.9	101	3.99	26.97	84.7	748
225/55R19	225	8.9	124	4.87	28.74	90.3	702
235/35R19	235	9.3	82	3.24	25.48	80.0	792
235/40R19	235	9.3	94	3.70	26.40	82.9	764
235/45R19	235	9.3	106	4.16	27.33	85.8	738
235/50R19	235	9.3	118	4.63	28.25	88.8	714
235/55R19	235	9.3	129	5.09	29.18	91.7	691
245/35R19	245	9.6	86	3.38	25.75	80.9	783
245/40R19	245	9.6	98	3.86	26.72	83.9	755
245/45R19	245	9.6	110	4.34	27.68	87.0	729
245/50R19	245	9.6	123	4.82	28.65	90.0	704
245/55R19	245	9.6	135	5.31	29.61	93.0	681
245/70R19	245	9.6	172	6.75	32.50	102.1	620
255/30R19	255	10.0	77	3.01	25.02	78.6	806
255/35R19	255	10.0	89	3.51	26.03	81.8	775
255/40R19	255	10.0	102	4.02	27.03	84.9	746
255/45R19	255	10.0	115	4.52	28.04	88.1	719
255/50R19	255	10.0	128	5.02	29.04	91.2	695
255/55R19	255	10.0	140	5.52	30.04	94.4	671
255/60R19	255	10.0	153	6.02	31.05	97.5	650
265/30R19	265	10.4	80	3.13	25.26	79.4	798
265/35R19	265	10.4	93	3.65	26.30	82.6	767
265/50R19	265	10.4	133	5.22	29.43	92.5	685
275/30R19	275	10.8	83	3.25	25.50	80.1	791
275/35R19	275	10.8	96	3.79	26.58	83.5	759
275/40R19	275	10.8	110	4.33	27.66	86.9	729
285/30R19	285	11.2	86	3.37	25.73	80.8	784
285/35R19	285	11.2	100	3.93	26.85	84.4	751
295/30R19	295	11.6	89	3.48	25.97	81.6	777

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20-inch tire sizes

39 common sizes for 20 inch wheels, from 25.8 to 37.0 inches tall.

20-inch tire size chart

225/35R20	225	8.9	79	3.10	26.20	82.3	770
235/35R20	235	9.3	82	3.24	26.48	83.2	762
235/55R20	235	9.3	129	5.09	30.18	94.8	668
245/30R20	245	9.6	74	2.89	25.79	81.0	782
245/35R20	245	9.6	86	3.38	26.75	84.0	754
245/40R20	245	9.6	98	3.86	27.72	87.1	728
245/45R20	245	9.6	110	4.34	28.68	90.1	703
245/50R20	245	9.6	123	4.82	29.65	93.1	680
255/35R20	255	10.0	89	3.51	27.03	84.9	746
255/40R20	255	10.0	102	4.02	28.03	88.1	719
255/45R20	255	10.0	115	4.52	29.04	91.2	695
255/50R20	255	10.0	128	5.02	30.04	94.4	671
255/55R20	255	10.0	140	5.52	31.04	97.5	650
265/35R20	265	10.4	93	3.65	27.30	85.8	739
265/45R20	265	10.4	119	4.69	29.39	92.3	686
265/50R20	265	10.4	133	5.22	30.43	95.6	663
275/30R20	275	10.8	83	3.25	26.50	83.2	761
275/35R20	275	10.8	96	3.79	27.58	86.6	731
275/40R20	275	10.8	110	4.33	28.66	90.0	704
275/45R20	275	10.8	124	4.87	29.74	93.4	678
275/50R20	275	10.8	138	5.41	30.83	96.8	654
275/55R20	275	10.8	151	5.95	31.91	100.2	632
275/60R20	275	10.8	165	6.50	32.99	103.6	611
275/65R20	275	10.8	179	7.04	34.07	107.0	592
285/30R20	285	11.2	86	3.37	26.73	84.0	754
285/35R20	285	11.2	100	3.93	27.85	87.5	724
285/50R20	285	11.2	143	5.61	31.22	98.1	646
285/55R20	285	11.2	157	6.17	32.34	101.6	624
285/60R20	285	11.2	171	6.73	33.46	105.1	603
285/65R20	285	11.2	185	7.29	34.59	108.7	583
295/35R20	295	11.6	103	4.06	28.13	88.4	717
295/55R20	295	11.6	162	6.39	32.78	103.0	615
295/60R20	295	11.6	177	6.97	33.94	106.6	594
305/55R20	305	12.0	168	6.60	33.21	104.3	607
315/35R20	315	12.4	110	4.34	28.68	90.1	703
33x12.50R20	317.5	12.5	165	6.50	33.00	103.7	611
35x12.50R20	317.5	12.5	191	7.50	35.00	110.0	576
37x12.50R20	317.5	12.5	216	8.50	37.00	116.2	545
37x13.50R20	342.9	13.5	216	8.50	37.00	116.2	545

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21-inch tire sizes

14 common sizes for 21 inch wheels, from 27.8 to 31.1 inches tall.

21-inch tire size chart

245/35R21	245	9.6	86	3.38	27.75	87.2	727
245/40R21	245	9.6	98	3.86	28.72	90.2	702
255/35R21	255	10.0	89	3.51	28.03	88.1	720
255/40R21	255	10.0	102	4.02	29.03	91.2	695
265/35R21	265	10.4	93	3.65	28.30	88.9	713
265/40R21	265	10.4	106	4.17	29.35	92.2	687
265/45R21	265	10.4	119	4.69	30.39	95.5	664
275/35R21	275	10.8	96	3.79	28.58	89.8	706
275/40R21	275	10.8	110	4.33	29.66	93.2	680
275/45R21	275	10.8	124	4.87	30.74	96.6	656
285/45R21	285	11.2	128	5.05	31.10	97.7	649
295/35R21	295	11.6	103	4.06	29.13	91.5	692
295/40R21	295	11.6	118	4.65	30.29	95.2	666
305/30R21	305	12.0	92	3.60	28.20	88.6	715

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22-inch tire sizes

16 common sizes for 22 inch wheels, from 27.8 to 37.0 inches tall.

22-inch tire size chart

255/30R22	255	10.0	77	3.01	28.02	88.0	720
265/35R22	265	10.4	93	3.65	29.30	92.1	688
265/40R22	265	10.4	106	4.17	30.35	95.3	665
275/40R22	275	10.8	110	4.33	30.66	96.3	658
275/45R22	275	10.8	124	4.87	31.74	99.7	635
275/50R22	275	10.8	138	5.41	32.83	103.1	614
285/35R22	285	11.2	100	3.93	29.85	93.8	676
285/40R22	285	11.2	114	4.49	30.98	97.3	651
285/45R22	285	11.2	128	5.05	32.10	100.8	628
295/25R22	295	11.6	74	2.90	27.81	87.4	725
295/30R22	295	11.6	89	3.48	28.97	91.0	696
305/40R22	305	12.0	122	4.80	31.61	99.3	638
305/45R22	305	12.0	137	5.40	32.81	103.1	615
33x12.50R22	317.5	12.5	140	5.50	33.00	103.7	611
35x12.50R22	317.5	12.5	165	6.50	35.00	110.0	576
37x13.50R22	342.9	13.5	191	7.50	37.00	116.2	545

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24-inch tire sizes

8 common sizes for 24 inch wheels, from 29.4 to 37.0 inches tall.

24-inch tire size chart

255/30R24	255	10.0	77	3.01	30.02	94.3	672
275/25R24	275	10.8	69	2.71	29.41	92.4	686
275/30R24	275	10.8	83	3.25	30.50	95.8	661
295/35R24	295	11.6	103	4.06	32.13	100.9	628
305/35R24	305	12.0	107	4.20	32.41	101.8	622
33x12.50R24	317.5	12.5	114	4.50	33.00	103.7	611
35x12.50R24	317.5	12.5	140	5.50	35.00	110.0	576
37x13.50R24	342.9	13.5	165	6.50	37.00	116.2	545

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Tire heights in metric: 30 to 37 inch tires

Truck owners usually shop by height (“a 33”, “a 35”). These are the sizes in the chart that measure within 0.3 inch of each height.

Metric and flotation sizes by overall height
Height	Sizes (diameter in inches)
30 in	255/70R16 (30.06), 235/70R17 (29.95), 255/65R17 (30.05), 235/65R18 (30.03), 255/60R18 (30.05), 255/55R19 (30.04), 235/55R20 (30.18), 255/50R20 (30.04), 285/35R22 (29.85), 255/30R24 (30.02); flotation: 30x9.50R15
31 in	235/75R17 (30.88), 255/70R17 (31.06), 255/65R18 (31.05), 255/60R19 (31.05), 255/55R20 (31.04), 275/50R20 (30.83), 285/50R20 (31.22), 275/45R21 (30.74), 285/45R21 (31.10), 285/40R22 (30.98); flotation: 31x10.50R15
32 in	235/85R16 (31.73), 235/80R17 (31.80), 255/75R17 (32.06), 255/70R18 (32.06), 275/65R18 (32.07), 275/55R20 (31.91), 275/45R22 (31.74), 285/45R22 (32.10), 295/35R24 (32.13); flotation: 32x11.50R15
33 in	285/75R16 (32.83), 285/70R17 (32.71), 295/70R17 (33.26), 275/70R18 (33.16), 275/60R20 (32.99), 295/55R20 (32.78), 305/55R20 (33.21), 275/50R22 (32.83), 305/45R22 (32.81); flotation: 33x12.50R15, 33x12.50R17, 33x12.50R18, 33x12.50R20, 33x12.50R22, 33x12.50R24
34 in	285/75R17 (33.83), 295/70R18 (34.26), 275/65R20 (34.07), 295/60R20 (33.94)
35 in	flotation: 35x12.50R15, 35x12.50R17, 35x12.50R18, 35x12.50R20, 35x12.50R22, 35x12.50R24
37 in	flotation: 37x12.50R17, 37x13.50R17, 37x12.50R18, 37x12.50R20, 37x13.50R20, 37x13.50R22, 37x13.50R24

Tire and wheel calculators

Check a swap before you buy with the tools that use the same math.

Tire size calculatorDiameter, sidewall and revs per mile for any size. Tire size comparisonTwo sizes side by side, with speedometer error. Wheel offset calculatorOffset, backspacing and poke for a new wheel. Wheel fitment calculatorCheck a wheel and tire setup against your stock one.

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