Tyre Load Index 73 — 365 kg Per Tyre
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Quick answer
Load index 73 means each tyre can carry up to 365 kg (805 lb) at its rated pressure. Across one axle that's 730 kg, and across all four tyres 1460 kg.
Axle maths
| Configuration | Maximum load |
|---|---|
| One tyre | 365 kg (805 lb) |
| Per axle (2 tyres) | 730 kg |
| All four tyres | 1460 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 |
|---|---|
| 70 | 335 kg |
| 71 | 345 kg |
| 72 | 355 kg |
| 73 | 365 kg |
| 74 | 375 kg |
| 75 | 387 kg |
| 76 | 400 kg |
Load index appears just before the speed symbol in the size code — e.g. 205/55 R16 73V. Never fit a lower index than your placard specifies; carrying loads also means watching pressures, so keep a accurate pressure gauge handy, and if you tow or load up regularly a 12v tyre inflator makes top-ups easy.
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FAQ
What does load index 73 mean?
Load index 73 certifies each tyre for a maximum of 365 kg (805 lb) at its rated pressure. Two tyres on an axle give 730 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 22 July 2026. Reference only — always follow your vehicle manufacturer's placard or handbook.