The Honda Odyssey's fuel tank capacity is 19.0 gallons (about 72 liters) in its latest-generation models, with small variations in older generations.
The following article breaks down the tank size across generations, what it means for driving range, and practical considerations for owners and shoppers.
Current tank size and historical notes
Below is a quick reference for tank sizes across the Odyssey’s generations. Note that exact figures can vary by year and trim due to options and revisions.
- Current generation (roughly 2011–present): 19.0 gallons
- Earlier generations: generally varied around 18.5–20.0 gallons depending on year and specification
The most commonly cited figure for recent Odysseys is a 19.0-gallon tank, with older models showing slight variation based on design changes and equipment levels.
Fuel range and efficiency
How far you can go on a full tank depends on the vehicle’s fuel economy numbers and driving conditions. For recent Honda Odysseys, the EPA estimates are roughly 19 miles per gallon in the city, 28 miles per gallon on the highway, and 22 miles per gallon combined.
- City driving: about 361 miles per tank (19 gallons × ~19 mpg)
- Highway driving: about 532 miles per tank (19 gallons × ~28 mpg)
- Combined driving: about 418 miles per tank (19 gallons × ~22 mpg)
Using these EPA values, a full 19-gallon tank yields approximate ranges:
In real-world conditions, these numbers can vary based on speed, terrain, payload, climate control use, tire pressure, and maintenance. The tank size remains a fixed factor, while actual range shifts with how you drive.
Notes on model-year variations
While the current generation sticks to a 19.0-gallon capacity, certain older or region-specific trims may have differed slightly due to equipment and revisions over the years. If you’re shopping used, check the exact specification in the owner’s manual or the vehicle’s documentation for that year and trim.
Summary
In short, a modern Honda Odyssey carries a 19-gallon gas tank, equating to about 72 liters. Older generations varied somewhat, generally between 18.5 and 20 gallons. Expect roughly 360–530 miles of range per tank in typical mixed driving, with highway trips leaning toward the upper end of that range and city driving toward the lower end.