There are **4 quarts** in a gallon. A quart is a unit of volume equal to a quarter of a gallon. A gallon is a unit of volume equal to 128 U.S. fluid ounces or about 3.785 liters .
For example, if you have 2 gallons of water, you can calculate how many quarts are in 2 gallons by multiplying the number of gallons by the conversion factor.
2 gallons * 4 quarts/gallon = **8 quarts**.
