Load index 73
One tire rated at load index 73 carries 365 kg, which is 805 lb. Four of them carry 1460 kg (3219 lb) between them.
A load index is the capacity of one tire at the inflation pressure the standard specifies for that rating, on a correctly sized rim, on a sound and undamaged tire. It is not a capacity at any pressure you choose, and it is not a licence to load a vehicle past its own axle and gross weight ratings.
- Per tire
- 365 kg
- Per tire
- 805 lb
- Sources
- 4
What load index 73 works out to
| Situation | Kilograms | Pounds |
|---|---|---|
| One tire | 365 | 805 |
| One axle (two tires) | 730 | 1609 |
| Set of four | 1460 | 3219 |
| One tire, P-metric or Euro-metric fitted to a light truck (divided by 1.1) | 331.8 | 732 |
A P-metric or Euro-metric tire fitted to a light truck, van, SUV or trailer carries less than its load index states. Divide the rated load by 1.1. An LT tire of the same nominal size is not derated, which is why an LT size and a P size that look alike are not interchangeable at rated load.
A tire rated for dual (twinned) fitment prints two load indices, for example 121/118S. The first applies when one tire is mounted per hub, the second when two are. Look the second index up in this table rather than working out a percentage - the printed pair is the rating, and any percentage is a description of it.
Indices either side
Questions about load index 73
- What is load index 73?
- Load index 73 means one tire is rated to carry 365 kg, which is 805 lb, at the inflation pressure the standard specifies for its load range.
- How much can four tires with load index 73 carry?
- 1460 kg (3219 lb) between them, if every tire is correctly inflated. That figure does not raise the vehicle's own gross weight rating, which is usually the lower limit and the one that governs.
- Is load index 73 enough for my vehicle?
- This site cannot answer that. The vehicle placard in the driver's door jamb states the load index the vehicle was built around, and a replacement has to meet or exceed it. That placard is the authority, not a table.
Where these figures come from
Computed on this page, not looked up. Each figure and the arithmetic behind it:
- Pounds
pounds = kilograms x 2.20462262185, rounded to the nearest pound - Light truck derating
rated load / 1.1, for a P-metric or Euro-metric tire on a light truck
Published values here were read from 4 independent sources:
- Tyre Load Index Chart (LI 0-150) - AmesWeb, states ETRTO and SAE tables as the basis (read 2026-08-27)Load index 0 to 150, kilograms
- Tire Load Rating Chart - Your Auto Vision, page dated 21 April 2026 (read 2026-08-27)Load index 0 to 150, kilograms and pounds; load range letters
- Load Index - CJ Tire, cites ETRTO Standards Manual 2010 page G7, standard load table at 42 psi (290 kPa) (read 2026-08-27)Load index 60 to 124, kilograms and pounds
- How to Read Speed Rating, Load Index and Service Descriptions - HP Wizard, reproduces Tire Rack tire tech information (read 2026-08-27)Load index 71 to 90, kilograms and pounds; speed symbols L to Y; ZR and bracketed symbols
These are independent publishers, not independent measurements. Each one reproduces a table originally set by a standards body, so agreement between them shows a value was transcribed correctly, not that the underlying table is right. Where a figure is safety relevant, check it against the tire manufacturer's own data before relying on it.