Tyre Load Index and Chart: Explanation and Meanings

Choosing tyres with the correct size and load index rating is crucial for safety, performance, and durability. The load index indicates the maximum weight each tyre can support, ensuring stability and preventing blowouts. This guide explains everything you need to know about this, including a chart to help you select the perfect tyres for your vehicle.

What is the tyre load rating?

The load rating consists of a numerical code, indicating the maximum vehicle weight that each tyre can safely support. For example, if the load rating is 91 then the maximum permissible load is 615 kg. For optimal performance, you should avoid overloading the tyres. You’ll find more information on this in the index chart below.

Where to find the tyre load index

The tyre load index rating can be found on the sidewall. You may also find it in the car owner’s manual or on the driver’s door jamb sticker. The tyre markings might look a little something like this: tyres 205/55 R16 94W. The last two digits before the last letter, in this case “94”, indicate the load rating. So, in this example, the maximum load would be 670 kg per tyre.

What XL means on Tyres

XL typically stands for “extra load”. These tyres are specifically designed for heavier vehicles than standard tyres, such as minibuses and offroad vehicles. They are reinforced for extra strength and used to be marked as “REINF”. The tyre structure is supported by a layer of rubberised cord to make it able to withstand higher loads.

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Tyre load rating and index chart

To decode the load rating for your car, refer to this simple index chart. Most passenger cars have a rating between 75 and 100.

How to choose a tyre load index

To choose new tyres, first determine the maximum weight your vehicle will carry, including passengers and cargo, as well as the weight of the vehicle itself. The load index indicates the maximum weight a tyre can safely support when properly inflated.

Consult your vehicle's owner's manual or the placard on the driver's door frame for the recommended load rating. Ensure the tyres you select meet or exceed this. Avoid lower-rated tyres, as they may compromise safety and performance. For heavy loads or towing, consider a higher load index for added durability. Always match the load index with your driving needs and the vehicle specifications.

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