gallon vs. liter

gallon vs. liter: What's the difference?

The U.S. standard gallon is equal to 3.7853 liters. The British imperial gallon is equal to 4.546 liters. Liters are used in the metric system. The closest measure in the U.S. customary system and the British system is the quart, which is one fourth of a gallon. In the U.S., a quart is equal to 0.946 liters. In the U.K, a quart is equal to 1.136 liters. In the U.S., milk is commonly sold in gallons, while soda is sold in 2-liter bottles.