Load Index 18

Load index — max weight per tyre75 kg / 165 lbs

Four of them carry 300 kg in total.

psi

Reference pressure — where that load rating applies36 psi / 248 kPa · 2.48 bar

Not a recommended pressure — set yours from the placard in the door shut. Below this, the tyre carries less than 75 kg.

Nearby indices

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Defined in UN vehicle regulation.

Where load index 18 is on the tyre

It is the number just after the rim size. Here it is on an example 205/55R16 — yours will read differently, but the 18 sits in the same place.

18 Load index

Each tyre carries up to 75 kg at 36 psi — 300 kg across four.