How many gallons is a full tank on a Toyota Tundra?
A full tank holds 26.4 gallons.
This article explains the standard fuel-tank capacity for current Toyota Tundra models and what that means for range and daily use.
Official capacity and configuration
The official specification for most current Tundra models lists a 26.4-gallon fuel tank. Toyota has not advertised a dual-tuel or multi-tank setup for US-market Tundras; the tank is a single-tank design in standard configurations.
Key facts about the tank size are outlined below.
- Standard fuel tank: 26.4 gallons
- Single-tank design; no factory dual-tank option in current US models
- Capacity is consistent across common configurations (CrewMax and Double Cab with typical bed lengths)
In practice, most drivers should plan for a 26.4-gallon fill, with real-world range varying based on drivetrain, engine choice, and driving conditions.
Estimating range on a full tank
Fuel economy varies by engine and drivetrain. With a full 26.4-gallon tank, the driving range typically falls within hundreds of miles, depending on whether the model uses a traditional non-hybrid setup or the i-Force MAX hybrid system, as well as driving style and terrain. For precise figures, consult the EPA estimates for your exact configuration or refer to the owner's manual.
Summary
Bottom line: for most current Toyota Tundra models, a full tank is 26.4 gallons. Range depends on the drivetrain and driving conditions, so check your specific configuration’s EPA estimates or your vehicle’s specifications for the most accurate figure.
