2021 Toyota Tundra Gas Tank Size & Fuel Capacity
Fuel tank capacity
26.4–38.0gal · 100–144 L
The 2021 Toyota Tundra has a fuel tank capacity of 26.4 to 38.0 gallons (100–144 liters), depending on the trim. The most common size is 38.0 gallons, used on 10 trims.
A full tank is good for roughly 449–646 highway miles or 343–494 miles around town, going by the EPA ratings.
38.0 gal · Bigger than 99% of 2021 models we list.
- By trim
- Gas cap & parts
- Fuel essentials
- Miles per tank
- Fill-up cost
- Other years
- Compared
- Fuel recalls
- Pump & gauge parts
- FAQ
2021 Toyota Tundra fuel tank capacity by trim
What changes the tank sizeTap an option to filter the table
- Drive
- no difference
- Cab
- no difference
- Bed
All 20 trims
MPG and range are city / highway.
| Trim | Engine | Drive | Tank | MPG city / hwy | Range city / hwy | |
|---|---|---|---|---|---|---|
| SR 4dr Double Cab 4WD LB 5.7L 8cyl 6A · 4WD MPG 13 / 17Range 343 / 449 mi | 5.7L 8cyl 6A | 4WD | 26.4 gal100 L | 13 / 17 | 343 / 449 mi | |
| SR 4dr Double Cab 4WD SB 5.7L 8cyl 6A · 4WD MPG 13 / 17Range 343 / 449 mi | 5.7L 8cyl 6A | 4WD | 26.4 gal100 L | 13 / 17 | 343 / 449 mi | |
| SR 4dr Double Cab LB 5.7L 8cyl 6A · RWD MPG 13 / 17Range 343 / 449 mi | 5.7L 8cyl 6A | RWD | 26.4 gal100 L | 13 / 17 | 343 / 449 mi | |
| SR 4dr Double Cab SB 5.7L 8cyl 6A · RWD MPG 13 / 17Range 343 / 449 mi | 5.7L 8cyl 6A | RWD | 26.4 gal100 L | 13 / 17 | 343 / 449 mi | |
| SR5 4dr CrewMax 4WD SB 5.7L 8cyl 6A · 4WD MPG 13 / 17Range 343 / 449 mi | 5.7L 8cyl 6A | 4WD | 26.4 gal100 L | 13 / 17 | 343 / 449 mi | |
| SR5 4dr CrewMax SB 5.7L 8cyl 6A · RWD MPG 13 / 17Range 343 / 449 mi | 5.7L 8cyl 6A | RWD | 26.4 gal100 L | 13 / 17 | 343 / 449 mi | |
| SR5 4dr Double Cab 4WD LB 5.7L 8cyl 6A · 4WD MPG 13 / 17Range 343 / 449 mi | 5.7L 8cyl 6A | 4WD | 26.4 gal100 L | 13 / 17 | 343 / 449 mi | |
| SR5 4dr Double Cab 4WD SB 5.7L 8cyl 6A · 4WD MPG 13 / 17Range 343 / 449 mi | 5.7L 8cyl 6A | 4WD | 26.4 gal100 L | 13 / 17 | 343 / 449 mi | |
| SR5 4dr Double Cab LB 5.7L 8cyl 6A · RWD MPG 13 / 17Range 343 / 449 mi | 5.7L 8cyl 6A | RWD | 26.4 gal100 L | 13 / 17 | 343 / 449 mi | |
| SR5 4dr Double Cab SB 5.7L 8cyl 6A · RWD MPG 13 / 17Range 343 / 449 mi | 5.7L 8cyl 6A | RWD | 26.4 gal100 L | 13 / 17 | 343 / 449 mi | |
| 1794 4dr CrewMax 4WD SB 5.7L 8cyl 6A · 4WD MPG 13 / 17Range 494 / 646 mi | 5.7L 8cyl 6A | 4WD | 38.0 gal144 L | 13 / 17 | 494 / 646 mi | |
| 1794 4dr CrewMax SB 5.7L 8cyl 6A · RWD MPG 13 / 17Range 494 / 646 mi | 5.7L 8cyl 6A | RWD | 38.0 gal144 L | 13 / 17 | 494 / 646 mi | |
| Limited 4dr CrewMax 4WD SB 5.7L 8cyl 6A · 4WD MPG 13 / 17Range 494 / 646 mi | 5.7L 8cyl 6A | 4WD | 38.0 gal144 L | 13 / 17 | 494 / 646 mi | |
| Limited 4dr CrewMax SB 5.7L 8cyl 6A · RWD MPG 13 / 17Range 494 / 646 mi | 5.7L 8cyl 6A | RWD | 38.0 gal144 L | 13 / 17 | 494 / 646 mi | |
| Limited 4dr Double Cab 4WD SB 5.7L 8cyl 6A · 4WD MPG 13 / 17Range 494 / 646 mi | 5.7L 8cyl 6A | 4WD | 38.0 gal144 L | 13 / 17 | 494 / 646 mi | |
| Limited 4dr Double Cab SB 5.7L 8cyl 6A · RWD MPG 13 / 17Range 494 / 646 mi | 5.7L 8cyl 6A | RWD | 38.0 gal144 L | 13 / 17 | 494 / 646 mi | |
| Platinum 4dr CrewMax 4WD SB 5.7L 8cyl 6A · 4WD MPG 13 / 17Range 494 / 646 mi | 5.7L 8cyl 6A | 4WD | 38.0 gal144 L | 13 / 17 | 494 / 646 mi | |
| Platinum 4dr CrewMax SB 5.7L 8cyl 6A · RWD MPG 13 / 17Range 494 / 646 mi | 5.7L 8cyl 6A | RWD | 38.0 gal144 L | 13 / 17 | 494 / 646 mi | |
| TRD PRO 4dr CrewMax 4WD SB 5.7L 8cyl 6A · 4WD MPG 13 / 17Range 494 / 646 mi | 5.7L 8cyl 6A | 4WD | 38.0 gal144 L | 13 / 17 | 494 / 646 mi | |
| TRD PRO 4dr Double Cab 4WD SB 5.7L 8cyl 6A · 4WD MPG 13 / 17Range 494 / 646 mi | 5.7L 8cyl 6A | 4WD | 38.0 gal144 L | 13 / 17 | 494 / 646 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 2021 Toyota Tundra 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 14 MPG, a full 38.0-gallon tank covers about 532 miles.
| Gauge | Gallons | Highway miles | City miles |
|---|---|---|---|
| Full | 38.0 | 646 | 494 |
| 3/4 | 28.5 | 485 | 371 |
| 1/2 | 19.0 | 323 | 247 |
| 1/4 | 9.5 | 162 | 124 |
| 1/8 | 4.8 | 81 | 62 |
Over 15,000 miles a year (the EPA's yearly estimate) this configuration uses about 1,071 gallons, roughly 28 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
- 14–15 MPG
- Tailpipe CO2
- 601–635 g/mi
- EPA greenhouse score
- 1–2 of 10
- Source
- EPA ratings
What it costs to fill up a 2021 Toyota Tundra
$162.26 to fill the 38.0-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 |
|---|---|---|---|---|
| 26.4 gal | Regular | $4.27 | $112.73 | $84.55 |
| 38.0 gal | Regular | $4.27 | $162.26 | $121.69 |
By region, 38.0-gallon tank
| Region | Regular / gal | Fill from empty |
|---|---|---|
| East Coast | $4.02 | $152.76 |
| Midwest | $4.27 | $162.26 |
| Gulf CoastLowest | $3.70 | $140.60 |
| Rocky Mountain | $4.46 | $169.48 |
| West Coast | $5.42 | $205.96 |
| CaliforniaHighest | $5.89 | $223.82 |
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
- 26.4-gallon tank$112.73
- 38.0-gallon tank$162.26
- A year of driving (15,000 mi)$4,575
Starts at the US average for regular; type in what your station charges. For other tank sizes, use the fill-up calculator.
Tundra tank size in other years
The 2021 Tundra uses the same 26.4–38.0 gal tank sizes as every Tundra since 2016.
| Model year | Tank | Longest highway range |
|---|---|---|
| 2026 Tundra | 32.2 gal | 773 mi |
| 2025 Tundra | 22.5–32.2 gal | 773 mi |
| 2024 Tundra | 22.5–32.2 gal | 773 mi |
| 2023 Tundra | 22.5–32.2 gal | 773 mi |
| 2022 Tundra | 22.5–32.2 gal | 773 mi |
| 2021 Tundra | 26.4–38.0 gal | 646 mi |
| 2020 Tundra | 26.4–38.0 gal | 684 mi |
| 2019 Tundra | 26.4–38.0 gal | 684 mi |
| 2018 Tundra | 26.4–38.0 gal | 684 mi |
| 2017 Tundra | 26.4–38.0 gal | 684 mi |
| 2016 Tundra | 26.4–38.0 gal | 684 mi |
- 2026
- 2025
- 2024
- 2023
- 2022
- 2021
- 2020
- 2019
- 2018
- 2017
- 2016
- 2015
- 2014
- 2013
- 2012
- 2011
- 2010
- 2009
- 2008
- 2007
- 2006
- 2005
- 2004
- 2003
- 2002
- 2001
- 2000
2021 Toyota Tundra vs similar 2021 pickups
The Tundra has the largest tank of the seven 2021 pickups compared here, 38.0 gallons against 36.0 for the Ford F-150.
| 2021 model | Tank | Longest highway range |
|---|---|---|
| Toyota Tundra | 26.4–38.0 gal | 646 mi |
| Ford F-150 | 23.0–36.0 gal | 676 mi |
| Ram 1500 | 23.0–33.0 gal | 858 mi |
| Chevrolet Silverado 1500 | 24.0–28.0 gal | 588 mi |
| GMC Sierra 1500 | 24.0–28.0 gal | 624 mi |
| Nissan Titan | 26.0 gal | 546 mi |
| Jeep Gladiator | 22.0 gal | 506 mi |
Other 2021 pickups of a similar size, one model per brand.
2021 Toyota Tundra fuel system recalls
None of the 2 recalls NHTSA lists for the 2021 Toyota Tundra involve the fuel system.
2021 Toyota Tundra fuel pump and gauge parts
NHTSA lists no fuel-system recall for the 2021 Toyota Tundra, so a failed pump or gauge is a normal repair. These are the part numbers the makers list for it.
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Frequently asked questions
What is the fuel tank capacity of the 2021 Toyota Tundra?
The 2021 Toyota Tundra holds between 26.4 and 38.0 gallons, depending on the trim. 38.0 gallons is the usual size; the smaller 26.4-gallon tank is on the SR 4dr Double Cab 4WD LB.
How many gallons and liters does the 2021 Toyota Tundra gas tank hold?
The 2021 Toyota Tundra tank holds 100–144 liters, or 26.4–38.0 gallons in US gallons.
Which 2021 Toyota Tundra has the biggest gas tank?
The 38.0-gallon tank is on the 1794 4dr CrewMax 4WD SB, 1794 4dr CrewMax SB, Limited 4dr CrewMax 4WD SB and 7 other trims. The smallest tank, 26.4 gallons, is on the SR 4dr Double Cab 4WD LB.
Does 4WD change the 2021 Toyota Tundra gas tank?
No. 4WD and RWD versions of the 2021 Toyota Tundra use the same 26.4–38.0 gal tank.
How far can a 2021 Toyota Tundra go on a full tank?
About 449–646 miles on the highway and 343–494 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 2021 Toyota Tundra go on a quarter tank?
About 162 highway miles or 124 in town from the 38.0-gallon tank, which has roughly 9.5 gallons left at the quarter mark. Gauges aren't exact, so treat that as a guide.
What gas does the 2021 Toyota Tundra take?
Regular unleaded. The label inside the fuel door confirms it for your car.
How much does it cost to fill up a 2021 Toyota Tundra?
At the US average of $4.27 a gallon for regular (EIA, week of October 26, 2026), filling the 38.0-gallon tank from empty costs $162.26. It ranges from $140.60 in the Gulf Coast to $223.82 in California.
How much does a full tank of gas weigh in a 2021 Toyota Tundra?
About 236 pounds for the 38.0-gallon tank. Gasoline weighs roughly 6.2 pounds a gallon.
Does the 2021 Toyota Tundra have a bigger gas tank than the Nissan Titan?
Yes. The 2021 Toyota Tundra holds up to 38.0 gallons; the 2021 Nissan Titan holds up to 26.0.
Has the 2021 Toyota Tundra had a fuel pump or fuel system recall?
No. None of the 2 recalls NHTSA lists for the 2021 Toyota Tundra 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.