2026 Toyota Sienna Gas Tank Size & Fuel Capacity
Fuel tank capacity
18.0gal · 68 L
The 2026 Toyota Sienna has a fuel tank capacity of 18.0 gallons (68 liters) on every trim.
A full tank is good for roughly 648 highway miles or 630–648 miles around town, going by the EPA ratings.
18.0 gal · Bigger than 53% of 2026 models we list.
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2026 Toyota Sienna fuel tank capacity by trim
What changes the tank sizeTap an option to filter the table
- Drive
- no difference
All 11 trims
MPG and range are city / highway.
| Trim | Engine | Drive | Tank | MPG city / hwy | Range city / hwy | |
|---|---|---|---|---|---|---|
| LE 8-Passenger 4dr Minivan 2.5L 4cyl CVT · FWD Hybrid MPG 36 / 36Range 648 / 648 mi | 2.5L 4cyl CVT Hybrid | FWD | 18.0 gal68 L | 36 / 36 | 648 / 648 mi | |
| LE 8-Passenger 4dr Minivan AWD 2.5L 4cyl CVT · AWD Hybrid MPG 35 / 36Range 630 / 648 mi | 2.5L 4cyl CVT Hybrid | AWD | 18.0 gal68 L | 35 / 36 | 630 / 648 mi | |
| Limited 7-Passenger 4dr Minivan 2.5L 4cyl CVT · FWD Hybrid MPG 36 / 36Range 648 / 648 mi | 2.5L 4cyl CVT Hybrid | FWD | 18.0 gal68 L | 36 / 36 | 648 / 648 mi | |
| Limited 7-Passenger 4dr Minivan AWD 2.5L 4cyl CVT · AWD Hybrid MPG 35 / 36Range 630 / 648 mi | 2.5L 4cyl CVT Hybrid | AWD | 18.0 gal68 L | 35 / 36 | 630 / 648 mi | |
| Platinum 7-Passenger 4dr Minivan AWD 2.5L 4cyl CVT · AWD Hybrid MPG 35 / 36Range 630 / 648 mi | 2.5L 4cyl CVT Hybrid | AWD | 18.0 gal68 L | 35 / 36 | 630 / 648 mi | |
| XLE 7-Passenger 4dr Minivan 2.5L 4cyl CVT · FWD Hybrid MPG 36 / 36Range 648 / 648 mi | 2.5L 4cyl CVT Hybrid | FWD | 18.0 gal68 L | 36 / 36 | 648 / 648 mi | |
| XLE 7-Passenger 4dr Minivan AWD 2.5L 4cyl CVT · AWD Hybrid MPG 35 / 36Range 630 / 648 mi | 2.5L 4cyl CVT Hybrid | AWD | 18.0 gal68 L | 35 / 36 | 630 / 648 mi | |
| XLE 8-Passenger 4dr Minivan 2.5L 4cyl CVT · FWD Hybrid MPG 36 / 36Range 648 / 648 mi | 2.5L 4cyl CVT Hybrid | FWD | 18.0 gal68 L | 36 / 36 | 648 / 648 mi | |
| XLE Woodland Edition 4dr Minivan AWD 2.5L 4cyl CVT · AWD Hybrid MPG 35 / 36Range 630 / 648 mi | 2.5L 4cyl CVT Hybrid | AWD | 18.0 gal68 L | 35 / 36 | 630 / 648 mi | |
| XSE 7-Passenger 4dr Minivan 2.5L 4cyl CVT · FWD Hybrid MPG 36 / 36Range 648 / 648 mi | 2.5L 4cyl CVT Hybrid | FWD | 18.0 gal68 L | 36 / 36 | 648 / 648 mi | |
| XSE 7-Passenger 4dr Minivan AWD 2.5L 4cyl CVT · AWD Hybrid MPG 35 / 36Range 630 / 648 mi | 2.5L 4cyl CVT Hybrid | AWD | 18.0 gal68 L | 35 / 36 | 630 / 648 mi | |
| No trim matches all of these filters. | ||||||
Tank figures are the manufacturer's rated capacity, sorted smallest tank first. Range is tank size times EPA city or highway MPG.
How far a 2026 Toyota Sienna goes on a tank
Gallons left and the distance they cover at each mark on the fuel gauge, at EPA city and highway mileage. At the combined rating of 35 MPG, a full 18.0-gallon tank covers about 630 miles.
| Gauge | Gallons | Highway miles | City miles |
|---|---|---|---|
| Full | 18.0 | 648 | 630 |
| 3/4 | 13.5 | 486 | 473 |
| 1/2 | 9.0 | 324 | 315 |
| 1/4 | 4.5 | 162 | 158 |
| 1/8 | 2.3 | 81 | 79 |
Over 15,000 miles a year (the EPA's yearly estimate) this configuration uses about 429 gallons, roughly 24 full tanks.
Fuel gauges aren't perfectly linear and the low-fuel light comes on with a few gallons still in the tank, so plan your stop before the last eighth.
- EPA combined
- 35–36 MPG
- Tailpipe CO2
- 246–253 g/mi
- EPA greenhouse score
- 6–7 of 10
- Source
- EPA ratings
What it costs to fill up a 2026 Toyota Sienna
$76.86 to fill the 18.0-gallon tank from empty with regular, at this week's US average of $4.27 a gallon.
| Tank | Fuel | US avg / gal | From empty | From 1/4 tank |
|---|---|---|---|---|
| 18.0 gal | Regular | $4.27 | $76.86 | $57.64 |
By region, 18.0-gallon tank
| Region | Regular / gal | Fill from empty |
|---|---|---|
| East Coast | $4.02 | $72.36 |
| Midwest | $4.27 | $76.86 |
| Gulf CoastLowest | $3.70 | $66.60 |
| Rocky Mountain | $4.46 | $80.28 |
| West Coast | $5.42 | $97.56 |
| CaliforniaHighest | $5.89 | $106.02 |
Prices: U.S. Energy Information Administration retail averages for the week of October 26, 2026. This week's prices by state and city.
Your own price
- 18.0-gallon tank$76.86
- A year of driving (15,000 mi)$1,830
Starts at the US average for regular; type in what your station charges. For other tank sizes, use the fill-up calculator.
Sienna tank size in other years
The 2026 Sienna uses the same 18.0 gal tank as every Sienna since 2021.
| Model year | Tank | Longest highway range |
|---|---|---|
| 2026 Sienna | 18.0 gal | 648 mi |
| 2025 Sienna | 18.0 gal | 648 mi |
| 2024 Sienna | 18.0 gal | 648 mi |
| 2023 Sienna | 18.0 gal | 648 mi |
| 2022 Sienna | 18.0 gal | 648 mi |
| 2021 Sienna | 18.0 gal | 648 mi |
- 2026
- 2025
- 2024
- 2023
- 2022
- 2021
- 2020
- 2019
- 2018
- 2017
- 2016
- 2015
- 2014
- 2013
- 2012
- 2011
- 2010
- 2009
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- 2005
- 2004
- 2003
- 2002
- 2001
- 2000
- 1999
- 1998
2026 Toyota Sienna vs similar 2026 minivans
The Sienna has the smallest tank of the four 2026 minivans compared here: 18.0 gallons, against 19.5 for the Honda Odyssey.
| 2026 model | Tank | Longest highway range |
|---|---|---|
| Honda Odyssey | 19.5 gal | 546 mi |
| Kia Carnival | 19.0 gal | 475 mi |
| Chrysler Pacifica | 16.5–19.0 gal | 532 mi |
| Toyota Sienna | 18.0 gal | 648 mi |
Other 2026 minivans of a similar size, one model per brand.
2026 Toyota Sienna fuel system recalls
None of the 1 recall NHTSA lists for the 2026 Toyota Sienna involve the fuel system.
Frequently asked questions
What is the fuel tank capacity of the 2026 Toyota Sienna?
The 2026 Toyota Sienna holds 18.0 gallons (68 liters) on every trim we list.
How many gallons and liters does the 2026 Toyota Sienna gas tank hold?
The 2026 Toyota Sienna tank holds 68 liters, or 18.0 gallons in US gallons.
Does AWD change the 2026 Toyota Sienna gas tank?
No. AWD and FWD versions of the 2026 Toyota Sienna use the same 18.0 gal tank.
How far can a 2026 Toyota Sienna go on a full tank?
About 648 miles on the highway and 630–648 miles in town, going from full to empty at its EPA ratings. Expect less in practice, since nobody runs the tank dry.
How many miles can a 2026 Toyota Sienna go on a quarter tank?
About 162 highway miles or 158 in town from the 18.0-gallon tank, which has roughly 4.5 gallons left at the quarter mark. Gauges aren't exact, so treat that as a guide.
What gas does the 2026 Toyota Sienna take?
Regular unleaded. The label inside the fuel door confirms it for your car.
How much does it cost to fill up a 2026 Toyota Sienna?
At the US average of $4.27 a gallon for regular (EIA, week of October 26, 2026), filling the 18.0-gallon tank from empty costs $76.86. It ranges from $66.60 in the Gulf Coast to $106.02 in California.
How much does a full tank of gas weigh in a 2026 Toyota Sienna?
About 112 pounds for the 18.0-gallon tank. Gasoline weighs roughly 6.2 pounds a gallon.
Does the 2026 Toyota Sienna have a bigger gas tank than the Honda Odyssey?
No. The 2026 Honda Odyssey holds up to 19.5 gallons; the 2026 Toyota Sienna holds up to 18.0.
Has the 2026 Toyota Sienna had a fuel pump or fuel system recall?
No. None of the 1 recall NHTSA lists for the 2026 Toyota Sienna involve the fuel system.
Sources
- Tank sizes: manufacturer-rated capacities from US-market specifications, checked against independent references. Updated October 2026.
- MPG and range: EPA ratings (fueleconomy.gov). Range is tank size times EPA MPG.
- Fuel prices: U.S. Energy Information Administration, week of October 26, 2026 (this week's prices).
- Recalls: NHTSA recall database (Toyota fuel system recalls).
Does your owner's manual say something different? Let us know and we'll fix it. More on how we check the numbers.