There are 4 quarts in 1 gallon.
This is easy to remember. Consider the word “quart”. It refers to a quarter.
When speaking about volumes, a quart is a quarter of a gallon. In other words, it is one-fourth of a gallon—so there are four of them in a gallon.
How to Convert Between Gallons and Quarts
You can use a simple formula to figure out the number of quarts in gallons:
quarts = 4 * gallons (1)
And to get the number of gallons given quarts, you can invert this formula:
gallons = 0.25 * quarts (2)
Example 1. How many quarts are in 1.5 gallons?
Answer. Let’s plug the numbers into formula 1:
quarts = 4 * 1.5 = 6.0
There are 6 quarts in 1.5 gallons
Example 2. How many gallons are 12 quarts?
Answer. Let’s plug the numbers into formula 2:
gallons = 0.25 * 12 = 3.0
12 quarts means 3 gallons.
Thanks for reading!