: a unit of liquid capacity equal to 231 cubic inches or four quarts see Weights and Measures Table
Examples of gallon in a Sentence
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The American Red Cross recommends the average person drink about three-fourths a gallon of water a day.
—
Joyce Orlando, The Tennessean, 29 July 2025
Florida price at the pump Average: The average price for a gallon of gas in Florida on Monday, July 28, according to AAA, is $3.08.
—Miami Herald, 28 July 2025
The completion of this $5.7 million project, the first step in a $600 million expansion that pushes the plant’s capacity to 50 million gallons per day, appears to be what the memorandum is referring to in regards to capacity expansion in August.
—Paul Sisson, San Diego Union-Tribune, 25 July 2025
Use equal parts of table salt and baking soda—about a cup of each for every gallon of water—and place this mix on the foil.
—Kathy Barnes, Better Homes & Gardens, 25 July 2025
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Joyce Orlando, The Tennessean, 29 July 2025
Florida price at the pump Average: The average price for a gallon of gas in Florida on Monday, July 28, according to AAA, is $3.08.
—Miami Herald, 28 July 2025
The completion of this $5.7 million project, the first step in a $600 million expansion that pushes the plant’s capacity to 50 million gallons per day, appears to be what the memorandum is referring to in regards to capacity expansion in August.
—Paul Sisson, San Diego Union-Tribune, 25 July 2025
Use equal parts of table salt and baking soda—about a cup of each for every gallon of water—and place this mix on the foil.
—Kathy Barnes, Better Homes & Gardens, 25 July 2025
See All Example Sentences for gallon
Cite this Entry
“Gallon.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/gallon. Accessed 7 Aug. 2025.
Copy CitationKids Definition
Medical Definition
gallon
noun
gal·lon
ˈgal-ən 
1
: a United States unit of liquid capacity equal to four quarts or 231 cubic inches or 3.785 liters
2
: a British unit of liquid and dry capacity equal to four quarts or 277.42 cubic inches or 4.544 liters
called also imperial gallon
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