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ISO LOAD INDEX / SPEED SYMBOL

UNDERSTANDING ISO LOAD INDEX & SPEED SYMBOL
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THE ISO* LOAD INDEX:

A numerical code associated with the maximum load a tire can carry at the speed indicated by its speed symbol under service conditions specified by the tire manufacturer (Note: 1 kg – 2.205 lbs.)

*International Standardization Organization

THE ISO* SPEED SYMBOL:

Indicates the speed at which the tire can carry a load corresponding to its Load Index under service conditions specified by the tire manufacturer.**

*International Standardization Organization
**Exceeding the legal speed limit is neither recommended nor endorsed

LOAD INDEX

The ISO LOAD INDEX is a numerical code associated with the maximum load a tire can carry at the speed indicated by its SPEED** SYMBOL under service conditions specified by the tire manufacturer. (1 kg = 2.205 lbs.)

Load Index kg lbs
100 800 1,765
101 825 1,820
102 850 1,875
103 875 1,930
104 900 1,985
105 925 2,040
106 950 2,095
107 975 2,150
108 1,000 2,205
109 1,030 2,270
110 1,060 2,335
111 1,090 2,405
112 1,120 2470
113 1,150 2,535
114 1,180 2,600
115 1,215 2,680
116 1,250 2,755
117 1,285 2,835
118 1,320 2,910
119 1,360 3,000
120 1,400 3,085
121 1,450 3,195
122 1,500 3,305
123 1,550 3,415
124 1,600 3,525
125 1,650 3,640
126 1,700 3,750
127 1,750 3,860
128 1,800 3,970
129 1,850 4,080
130 1,900 4,190
131 1,950 4,300
132 2,000 4,410
133 2,060 4,540
Load Index kg lbs
134 2,120 4,675
135 2,180 4,805
136 2,240 4,940
137 2,300 5,070
138 2,360 5,205
139 2,430 5,355
140 2,500 5,510
141 2,575 5,675
142 2,650 5,840
143 2,725 6,005
144 2,800 6,175
145 2,900 6,395
146 3,000 6,610
147 3,075 6,780
148 3,150 6,940
149 3,250 7,160
150 3,350 7,390
151 3,450 7,610
152 3,550 7,830
153 3,650 8,050
154 3,750 8,270
155 3,875 8,540
156 4,000 8,820
157 4,125 9,090
158 4,250 9,370
159 4,375 9,650
160 4,500 9,920
161 4,625 10,200
162 4,750 10,500
163 4,875 10,700
164 5,000 11,000
165 5,150 11,400
166 5,300 11,700
167 5,450 12,000
Load Index kg lbs
168 5,600 12,300
169 5,800 12,800
170 6,000 13,200
171 6,150 13,600
172 6,300 13,900
173 6,500 14,300
174 6,700 14,800
175 6,900 15,200
176 7,100 15,700
177 7,300 16,100
178 7,500 16,500
179 7,750 17,100
180 8,000 17,600
181 8,250 18,195
182 8,500 18,745
183 8,750 19,295
184 9,000 19,845
185 9,250 20,400
186 9,500 21,000
187 9,750 21,500
188 10,000 22,050
189 10,300 22,720
190 10,600 23,400
191 10,900 24,040
192 11,200 24,700
193 11,500 25,360
194 11,800 26,020
195 12,150 26,800
196 12,500 27,565
197 12,850 28,355
198 13,200 29,110
199 13,600 30,000
200 14,000 30,870
201 14,500 31,980
SPEED SYMBOL

The ISO* SPEED SYMBOL indicates the speed at which the tire can carry a load corresponding to its Load Index under service conditions specified by the tire manufacturer.**

Speed Symbol Speed (kph) Speed (mph)
A1 5 2.5
A2 10 5
A3 15 10
A4 20 12.5
A5 25 15
A6 30 20
A7 35 22.5
A8 40 25
B 50 30
C 60 35
D 65 40
E 70 43
F 80 50
G 90 56
J 100 62
K 110 68
L 120 75
M 130 81
N 140 87
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