How many cups are in a gallon? In the US, one gallon equals 16 cups, also known as a “gal cup” conversion. But there are different types of gallons. This article explains the US liquid gallon, US dry gallon, and the Imperial gallon conversions to gal cups. Key Takeaways on Gal Cup A US liquid … Continue reading Gal Cup Conversion: How Many Cups in a Gallon?