The current Honda Legend covers up to 629 km on a full tank, based on combined-cycle consumption. Figures below are the best-range variant in each generation.
| Years | Powertrain | Range |
|---|---|---|
| 1987–1991 | Combustion | 716 |
| 1991–1996 | Combustion | 648 |
| 1996–2005 | Combustion | 557 |
| 2006–2008 | Combustion | 613 |
| 2008–2010 | Combustion | 629 |
Range is calculated from each variant’s fuel tank capacity and combined-cycle consumption (tank ÷ consumption × 100), for the best-range variant in each generation — real-world range varies with driving style and conditions. Figures outside a plausible range for the tank size are excluded.