TIRE CENTER · Understanding & choosing tires

Load index & load range

Find the weight-capacity code

Load Index is the number telling you how much weight one tire is designed to carry under its specified conditions. It is a standardized code, not itself pounds or PSI.

One tire marking, three connected lessons

205/55R17Size91Load IndexVSpeed Rating

Example marking; not a fitment recommendation.

Decode the number in the reference

Load Index reference: 60–209

Reference loads—not capacity at every inflation pressure or fitment approval.

Highlight a Load Index (for example, 91)

All rows remain available below; highlighting does not hide other values.

Open the complete 150-row reference

Per-tire maximum reference loads; pounds are approximate unit conversions
Load Index	kg / tire	Approx. lb / tire
60	250	551
61	257	567
62	265	584
63	272	600
64	280	617
65	290	639
66	300	661
67	307	677
68	315	694
69	325	717
70	335	739
71	345	761
72	355	783
73	365	805
74	375	827
75	387	853
76	400	882
77	412	908
78	425	937
79	437	963
80	450	992
81	462	1,019
82	475	1,047
83	487	1,074
84	500	1,102
85	515	1,135
86	530	1,168
87	545	1,202
88	560	1,235
89	580	1,279
90	600	1,323
91	615	1,356
92	630	1,389
93	650	1,433
94	670	1,477
95	690	1,521
96	710	1,565
97	730	1,609
98	750	1,653
99	775	1,709
100	800	1,764
101	825	1,819
102	850	1,874
103	875	1,929
104	900	1,984
105	925	2,039
106	950	2,094
107	975	2,150
108	1,000	2,205
109	1,030	2,271
110	1,060	2,337
111	1,090	2,403
112	1,120	2,469
113	1,150	2,535
114	1,180	2,601
115	1,215	2,679
116	1,250	2,756
117	1,285	2,833
118	1,320	2,910
119	1,360	2,998
120	1,400	3,086
121	1,450	3,197
122	1,500	3,307
123	1,550	3,417
124	1,600	3,527
125	1,650	3,638
126	1,700	3,748
127	1,750	3,858
128	1,800	3,968
129	1,850	4,079
130	1,900	4,189
131	1,950	4,299
132	2,000	4,409
133	2,060	4,542
134	2,120	4,674
135	2,180	4,806
136	2,240	4,938
137	2,300	5,071
138	2,360	5,203
139	2,430	5,357
140	2,500	5,512
141	2,575	5,677
142	2,650	5,842
143	2,725	6,008
144	2,800	6,173
145	2,900	6,393
146	3,000	6,614
147	3,075	6,779
148	3,150	6,945
149	3,250	7,165
150	3,350	7,385
151	3,450	7,606
152	3,550	7,826
153	3,650	8,047
154	3,750	8,267
155	3,875	8,543
156	4,000	8,818
157	4,125	9,094
158	4,250	9,370
159	4,375	9,645
160	4,500	9,921
161	4,625	10,196
162	4,750	10,472
163	4,875	10,748
164	5,000	11,023
165	5,150	11,354
166	5,300	11,684
167	5,450	12,015
168	5,600	12,346
169	5,800	12,787
170	6,000	13,228
171	6,150	13,558
172	6,300	13,889
173	6,500	14,330
174	6,700	14,771
175	6,900	15,212
176	7,100	15,653
177	7,300	16,094
178	7,500	16,535
179	7,750	17,086
180	8,000	17,637
181	8,250	18,188
182	8,500	18,739
183	8,750	19,290
184	9,000	19,842
185	9,250	20,393
186	9,500	20,944
187	9,750	21,495
188	10,000	22,046
189	10,300	22,708
190	10,600	23,369
191	10,900	24,030
192	11,200	24,692
193	11,500	25,353
194	11,800	26,015
195	12,150	26,786
196	12,500	27,558
197	12,850	28,329
198	13,200	29,101
199	13,600	29,983
200	14,000	30,865
201	14,500	31,967
202	15,000	33,069
203	15,500	34,172
204	16,000	35,274
205	16,500	36,376
206	17,000	37,479
207	17,500	38,581
208	18,000	39,683
209	18,500	40,786

Source: Bridgestone published reference, reviewed 2026-10-01. The complete 150-row Load Index reference covers 60–209; higher entries extend beyond ordinary passenger/LT/ST applications. Missing web rows were cross-checked separately.

Different load markings answer different questions

Load Range, such as C, D or E, describes a tire’s load, pressure and strength category. It differs from Load Index: a letter is not one fixed pound capacity or a literal count of modern reinforcing layers. SL/XL identify Standard Load/Extra Load passenger categories.

Actual capacity depends on the exact tire, size, construction, inflation and application—not the category alone.

Single versus dual

Single means one tire at each axle end; dual means a pair at each end. A dual-marked 121/118 uses 121 for single and 118 per tire in dual use. Never substitute the single figure into the dual arrangement.

Use the lookup

Follow 91 from marking to chart

Locate the 91 row: 615 kg per tire, approximately 1,356 lb.
Read that value with the applicable tire/application conditions; this table is not a load-versus-inflation table.
Verify the actual cold pressure, load and manufacturer requirements before approving the setup.

The tire is only one limit

An axle rating is the manufacturer’s limit for that axle system; vehicle/trailer ratings cover the complete loaded unit.

One tire is not the whole vehicle

Each tire position has requirements, while the axle and complete vehicle have separate ratings. Higher-capacity tires do not increase those ratings.

Sources and Technical Notes

Technical concepts reviewed 2026-10-10. Actual application instructions remain controlling.

Application-specific details and scope

Historical ply ratings are strength-category descriptions, not literal counts of modern reinforcing layers. Single/dual reference figures are per tire in the specified arrangement.

The full published 60–209 Load Index range includes applications beyond ordinary passenger/LT/ST service. Six rows absent from the Bridgestone web table were cross-checked against the cited supplementary references. Pounds are rounded unit conversions, not separately assigned TRA capacities or a load-versus-inflation operating table.