Tire Load Index Chart

On any vehicle, the tires are the only contact that the vehicle gets with the surface. As they are primarily responsible for keeping you safe on the road, keeping them in good shape is essential. One thing that many people tend to overlook when it comes to tire usage is the tire load index.

What Exactly is the Tire Load Index?

A tire load index is the maximum amount of weight that you can put on a tire and drive it safely. The tire load index chart represents a combination of the tire’s ability to carry weight at a certain maximum speed as long as the pressure is in the optimal range. All of these parameters are set by the manufacturer.

Why is the Tire Load Index Important?

As each tire is rated at a certain maximum weight, the tire load index is one of the essential aspects you should consider. During the manufacturing process, the tires are tested, and the manufacturer determines the maximum weight they can carry before becoming unsafe to drive. The dangers of putting too much weight on the tires can range from premature wear to puncture or a blowout.

Using the Tire Load Index Chart

As your car has a maximum amount of weight it can carry, so do the tires, and they are often intertwined. On the tire side of things, a tire load index is a number associated with the maximum weight the tire can handle. In most passenger cars, the load rating ranges from 70 to 150, but it can go more on tires designed for bigger vehicles that carry bigger loads.

Each tire load index is associated with the amount of weight presented in pounds. For example, if your tire load index is 100, it means that one tire can hold a maximum of 1764 pounds. One thing to note is that even though the tire can carry more, it is not recommended to do so, as you increase the chances of damage to it. As the tire load index is for just one tire, to calculate the maximum of all 4 corners, you’ll need to multiply it by 4. For the example above, if each tire has an index of 100 capable of carrying 1764 pounds, the maximum amount of weight you can put on the vehicle is 7056 pounds. One thing to note is that this is the total, including the car’s weight. To determine the actual load you can put on the car, you’ll need to deduct the weight of the car from the maximum weight the tires can handle.

Load IndexLoad (lbs)
099
1102
2105
3107
4110
5114
6117
7120
8123
9128
10132
11136
12139
13143
14148
15152
16157
17161
18165
19171
20176
21182
22187
23193
24198
25204
26209
27215
28220
29227
30234
31240
32247
33254
34260
35267
36276
37282
38291
39300
40309
41320
42331
43342
44353
45364
46375
47386
48397
49408
Load IndexLoad (lbs)
50419
51430
52441
53454
54467
55481
56494
57507
58520
59536
60551
61567
62584
63600
64617
65639
66639
67677
68694
69716
70739
71761
72783
73805
74827
75852
76882
77908
78937
79963
80992
811019
821047
831074
841102
851135
861168
871201
881235
891279
901323
911356
921389
931433
941477
951521
961565
971609
981653
991709
Load IndexLoad (lbs)
1001764
1011819
1021874
1031929
1041984
1052039
1062094
1072149
1082205
1092271
1102337
1112403
1122469
1132535
1142601
1152679
1162756
1172833
1182910
1192998
1203086
1213197
1223307
1233417
1243527
1253638
1263748
1273858
1283968
1294079
1304189
1314289
1324409
1334541
1344674
1354806
1364938
1375071
1385203
1395357
1405512
1415677
1425842
1436008
1446173
1456393
1466614
1476779
1486844
1497165
1507385

Light Truck Tire Load Index

In contrast to passenger tires, light truck counterparts have two load indexes separated by the slash. This is because light truck vehicles typically have their rear wheels doubled.

Which means that a light truck tire with 120/116 load index represents, for example, a single tire load capacity of 3,086 libs and a load capacity of 2,756 pounds for two tires.

The reason that two tires have a smaller capacity than one is to ensure that the light truck can continue to bear load if one tire fails.

Load Index Indication on a Light Truck Tire’s Sidewall

Considering Load Index When Shopping for Tires

When you reach a point where you need to replace your tires, the load index is an important aspect you should consider, and there are a few ways to do this. The simplest one is to check the load index on the original tires that came with the vehicle. This is often the safest way, as the manufacturer wouldn’t put “weaker” tires.

The second approach is to do the mat yourself. Find the car’s gross weight and add the maximum weight the vehicle can handle, and add them up. Both of these numbers can be found in the user manual. When you get the number, divide it by 4, and you’ll get the maximum weight a single tire can carry. Find that number in the tire load index chart and learn more about the vehicle’s carrying capacity index ratings.

FAQs

Does a tire load index affect ride?

Not necessarily. Tires with a higher load index have stiffer sidewalls which lead to a harsher ride. To counteract that, you can deflate the tire if you don’t need to put a lot of weight.

Is a higher load index better?

As long as the tire load index doesn’t go below the car manufacturer’s specifications, you won’t be getting any benefits.

We will be happy to hear your thoughts

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