Convert 18 Quarts to Gallons
How big is 18 quarts? How many gallons are in 18 U.S. quarts? 18 qts to gal conversion.
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18 U.S. Quarts =
4.5 U.S. Gallons
exact result
Decimal places
Result in Plain English
18 quarts is equal to exactly 4 and a 1⁄2 gallons.
Result as a Fraction
18 quarts
= 9⁄2 gallons
= 4 and 1⁄2 gallons
In Scientific Notation
18 quarts
= 1.8 x 101 quarts
= 4.5 x 100 gallons
Quarts
A U.S. quart is equal to 32 U.S. fluid ounces, 1/4th of a gallon, or 2 pints. It should not be confused with the Imperial quart, which is about 20% larger.Abbreviation: qt
Gallons
A U.S. gallon is a unit of volume equal to 128 U.S. fluid ounces, or about 3.785 liters. It should not be confused with the imperial gallon used in the United Kingdom.Common abbreviations: gal, US gal