Load index 120

One tire rated at load index 120 carries 1400 kg, which is 3086 lb. Four of them carry 5600 kg (12346 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
1400 kg
Per tire
3086 lb
Sources
4

What load index 120 works out to

Load index 120 in several forms
SituationKilogramsPounds
One tire14003086
One axle (two tires)28006173
Set of four560012346
One tire, P-metric or Euro-metric fitted to a light truck (divided by 1.1)1272.72806

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

Load indices near 120
IndexKilogramsPoundsDifference from 120
11712852833-115 kg
11813202910-80 kg
11913602998-40 kg
12114503197+50 kg
12215003307+100 kg
12315503417+150 kg

Questions about load index 120

What is load index 120?
Load index 120 means one tire is rated to carry 1400 kg, which is 3086 lb, at the inflation pressure the standard specifies for its load range.
How much can four tires with load index 120 carry?
5600 kg (12346 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 120 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
  • Load Index & Weight Ratings - rimlist, undated reference article (read 2026-08-27)
    Load index 80 to 121, kilograms and pounds; load range letters; SL, XL and HL reference pressures

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.