Load index to pounds
Convert the load index number to per-tire capacity in pounds and kilograms, and to a four-tire vehicle total.
Load & speed rating
Enter a load index or speed rating from the sidewall to see the capacity and maximum speed it stands for.
What it does
Convert the load index number to per-tire capacity in pounds and kilograms, and to a four-tire vehicle total.
Translate the speed rating letter to its maximum sustained speed in mph and km/h.
The load index band Toyota specifies for the Tacoma and the OE speed ratings to expect.
The load index is a coded number for how much weight one tire can carry at full inflation. For example load index 115 is 2,679 lb per tire. Multiply by four for the vehicle total.
Toyota engineers the Tacoma for tires with a load index of 109 or higher, which is 2,271 lb per tire. Staying at or above the door-placard load index keeps the truck within spec.
The speed rating letter is the maximum sustained speed the tire is designed for. Common Tacoma OE ratings are S (112 mph), T (118 mph), and H (130 mph).