Tire Load Index Calculator | Max Load Capacity Finder
Determine a tire's maximum load carrying capacity in pounds (lbs) and kilograms (kg) from its load index number. Essential for vehicle safety and proper tire selection.
The Tire Load Index is a numerical code on a tire's sidewall that corresponds to the maximum load (in weight) it can safely carry when properly inflated. It's a critical piece of information for vehicle safety, as exceeding a tire's load capacity can lead to poor handling, tire damage, or even a dangerous blowout.
This calculator allows you to quickly determine the maximum load capacity in both pounds (lbs) and kilograms (kg) for a given load index number. Understanding this helps you ensure that the tires on your vehicle are appropriate for its weight and any cargo or passengers you might carry. Always choose tires with a load index that meets or exceeds your vehicle manufacturer's recommendations (found in the owner's manual or on the vehicle's tire placard).
- Locate the Load Index number on your tire's sidewall. It's typically a two or three-digit number immediately following the tire diameter, and before the speed rating letter (e.g., in '225/45R17 91W', '91' is the load index).
- Enter this Load Index number into the designated field in the calculator.
- Click the "Find Load Capacity" button.
- The results will display the maximum load capacity per tire in both pounds (lbs) and kilograms (kg).
Always ensure your tires meet or exceed the load requirements specified by your vehicle manufacturer. Do not overload your vehicle or tires. This calculator provides information based on standard load index charts; always verify with official sources if in doubt.
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