Load Index	Pounds	Kilograms
80	990	450
81	1018	462
82	1047	475
83	1074	487
84	1102	500
85	1135	515
86	1168	530
87	1201	545
88	1234	560
89	1278	580
90	1323	600
91	1356	615
92	1389	630
93	1433	650
94	1477	670
95	1521	690
96	1565	710
97	1609	730
98	1653	750
99	1708	775

Load Index	Pounds	Kilograms
60	551	250
61	567	257
62	584	265
63	600	272
64	617	280
65	639	290
66	662	300
67	677	307
68	695	315
69	717	325
70	739	335
71	761	345
72	783	355
73	805	365
74	827	375
75	853	387
76	882	400
77	908	412
78	937	425
79	964	437

Load Index	Pounds	Kilograms
100	1764	800
101	1819	825
102	1874	850
103	1929	875
104	1984	900
105	2039	925
106	2095	950
107	2149	975
108	2205	1000
109	2271	1030
110	2337	1060
111	2403	1090
112	2469	1120
113	2535	1150
114	2601	1180
115	2679	1215
116	2750	1250
117	2833	1285
118	2911	1320
119	2999	1360

Load Ratings

• The load rating (load index) indicates the maximum weight that each tire is able to bear.  See the chart below that shows the relationship between load index and the actual weight.

Speed Ratings

• Q = 99 MPH, 160 km/h

• S = 112 MPH, 180 km/h

• T = 118 MPH, 190 km/h

• U = 124 MPH, 200 km/h

• H = 130 MPH, 210 km/h

• V = 149 MPH, 240 km/h

• Z = 149 MPH, 240 km/h and over

• W = 168 MPH, 270 km/h

• Y = 186 MPH, 300 km/h

Load Range

There is no common industry-wide definition of ply rating.  Truck Tyres are frequently marked with ply ratings and equivalent Load Range.  The table shows the conversion between ply rating and load range.

Ply Rating	Load Range
2	A
4	B
6	C
8	D
10	E
12	F
14	G
16	H
18	J
20	L
22	M
24	N