Tyre Load Index 91 — 615 kg Per Tyre
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Quick answer
Load index 91 means each tyre can carry up to 615 kg (1356 lb) at its rated pressure. Across one axle that's 1230 kg, and across all four tyres 2460 kg.
Axle maths
| Configuration | Maximum load |
|---|---|
| One tyre | 615 kg (1356 lb) |
| Per axle (2 tyres) | 1230 kg |
| All four tyres | 2460 kg |
The usable figure is your vehicle's gross axle weight rating, which is always lower than the tyre total — the tyre rating just must never be the weaker link. Converting kg to lb or working out payload? The unit converters at 247QuickTools and the calculators at 247Calculators cover it.
Tyre Owner Essentials
Nearby load indices
| Index | kg per tyre |
|---|---|
| 88 | 560 kg |
| 89 | 580 kg |
| 90 | 600 kg |
| 91 | 615 kg |
| 92 | 630 kg |
| 93 | 650 kg |
| 94 | 670 kg |
Load index appears just before the speed symbol in the size code — e.g. 205/55 R16 91V. Never fit a lower index than your placard specifies; carrying loads also means watching pressures, so keep a digital tyre inflator handy, and if you tow or load up regularly a TPMS sensor kit makes top-ups easy.
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FAQ
What does load index 91 mean?
Load index 91 certifies each tyre for a maximum of 615 kg (1356 lb) at its rated pressure. Two tyres on an axle give 1230 kg of tyre capacity.
Can I fit a lower load index than my placard shows?
No — never fit a lower index than specified. Equal or higher is the rule; XL (extra load) versions of the same size carry a higher index.
Does load index change with pressure?
The rated maximum applies at the tyre's specified pressure. Underinflation reduces real-world capacity and builds heat, which is why placard pressures matter when carrying loads.
Related pages on this site
Last updated:
Data: computed reference values (ETRTO tyre-size arithmetic), build date 5 September 2026. Reference only — always follow your vehicle manufacturer's placard or handbook.