What is the equivalent of 1 gallon in quarts?

One gallon is equivalent to 4 quarts because the gallon is a larger unit of measurement in the U.S. customary system. To understand this relationship, it's important to know the conversions within the system: 1 gallon is defined as being equal to 4 quarts. Therefore, when you're measuring liquid volumes, if you have 1 gallon, you can divide that into 4 equal parts, and each part is a quart.

This conversion is a fundamental fact in measurements and is often utilized when dealing with cooking, gas, and other liquid measurements. The other options reflect incorrect conversions of measurements for a gallon to quarts, as they do not align with the standard unit relationships defined in the U.S. customary measurement system.