====== gallons (US) ====== US Gallons are the most common unit of measure when describing the volume of aquariums in North America. In the United States, a gallon is a unit of volume used to measure liquids and is defined as: * 1 US gallon = 128 US fluid ounces * 1 US gallon = 4 quarts * 1 US gallon = 8 pints * 1 US gallon = 16 cups The US gallon is equivalent to approximately 3.785 litres. This measurement is commonly used in the US for various applications, including cooking, fuel, and other liquid measurements.