How far can a Toyota Avalon go on a full tank?
On a full tank, the gas-powered Avalon typically covers about 480 miles in mixed driving, while the Avalon Hybrid can exceed 800 miles under favorable conditions.
Tank size and current availability
The Avalon uses an approximately 18.5-gallon fuel tank in most U.S. models. In recent years Toyota shifted focus away from the Avalon in the U.S. market, with the model effectively discontinued for new sales after the 2022 model year. This means the figures below apply to 2019–2022 Avalons that used the 18.5-gallon tank, and real-world ranges will vary for any remaining used units.
Gasoline-powered Avalon (3.5L V6)
The information below uses EPA fuel-economy estimates for a typical gas-only Avalon and a standard 18.5-gallon tank. Driving style and conditions will affect actual results.
These figures help illustrate potential ranges based on EPA ratings and tank size.
- City driving range: about 407 miles (18.5 gallons × ~22 mpg)
- Highway driving range: about 592 miles (18.5 gallons × ~32 mpg)
- Combined driving range: about 481 miles (18.5 gallons × ~26 mpg)
In everyday use, expect a practical range near the mid‑400s to near 500 miles under typical mixed conditions, with better numbers on long highway trips and lower numbers in stop‑and‑go city driving.
Avalon Hybrid
The Avalon Hybrid combines a 2.5L engine with electric assist, and EPA ratings for the hybrid version are higher overall. Specific city/highway splits vary by year and trim, but the combined efficiency is commonly in the mid‑40s mpg. With an 18.5-gallon tank, this yields a substantially longer potential range.
The following estimates assume a representative hybrid efficiency and the standard fuel tank. Real-world results will vary with conditions and equipment (air conditioning, cargo, etc.).
- Combined range: about 810 miles (18.5 gallons × ~44 mpg combined)
- Real‑world range: typically around 740–820 miles depending on driving style and conditions
In practice, the hybrid version can often deliver well over 700 miles on a full tank, especially on steady highway cruising with light to moderate use of climate controls.
Other factors that affect range
Several variables can swing your actual range well above or below these estimates. Being aware of them can help you plan fuel stops more precisely.
- Driving style and speed — aggressive driving and high speeds reduce mpg.
- Terrain and elevation — hills and mountainous routes lower range, flat highways boost it.
- Air conditioning and climate controls — A/C use can shave miles off range, especially at highway speeds.
- Vehicle load and cargo — heavier loads decrease efficiency.
- Tire pressure and condition — underinflated tires hurt fuel economy.
- Maintenance and fuel quality — up‑to‑date maintenance and high‑octane fuel (if recommended) can influence efficiency.
These factors mean your real-world range may differ noticeably from the theoretical numbers above.
Availability context
Because the Avalon is no longer sold new in the U.S. market, most current owner experience will come from used-model ranges. If you consider newer Toyota sedans for long-range reliability, you may also compare the Avalon’s legacy performance with options like the Toyota Crown or other full-size sedans that continue to be offered new.
Summary
In summary, a gas-powered Avalon from the latest available (pre-discontinuation) generation typically offers about 480 miles of range on a full 18.5-gallon tank in mixed driving, while the Avalon Hybrid can push beyond 800 miles under favorable conditions. Real-world results depend on driving style, terrain, climate control use, and maintenance. With the Avalon now largely phased out of new-car sales in the U.S., these figures are most relevant to used models from 2019–2022.
