Gallon (US) [gal (US)]
The US gallon is a unit of volume commonly used in the United States for measuring liquids like fuel, milk, and water.
One US gallon is equal to 3.78541 liters or 128 US fluid ounces.
It differs from the UK (imperial) gallon, which is larger.
Summary:
1 US gallon โ 3.785 liters
Used mainly in the United States
Common for liquid measurements like gasoline and beverages