# Load Index and Speed Rating Lookup

Look up tire load index and speed rating. Convert a load index to pounds per tire and a speed rating letter to its maximum speed, with Tacoma context.

## Canonical URL
https://tacotires.com/load-index-speed-rating

## What It Does
- Load index to pounds: Convert the load index number to per-tire capacity in pounds and kilograms, and to a four-tire vehicle total.
- Speed rating: Translate the speed rating letter to its maximum sustained speed in mph and km/h.
- Tacoma context: The load index band Toyota specifies for the Tacoma and the OE speed ratings to expect.

## Summary
- Converts a tire load index to per-tire capacity in pounds and kilograms, and a speed rating letter to its maximum speed.
- Vehicle capacity is the single-tire load times four.
- Toyota engineers the Tacoma for tires with load index 109 or higher; OE speed ratings are usually S, T, or H.

## FAQ
### What does the load index mean?
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.

### What load index does a Tacoma need?
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.

### What does the speed rating letter mean?
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).

## Related Tools
- [Tire pressure calculator](https://tacotires.com/tire-pressure-calculator)
- [Find my tire size](https://tacotires.com/find-my-tire-size)

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