What is one sixth of one gallon?

The US Gallon is defined as 16 cups or 128 oz. which is not evenly divisible by 6. However, breaking the gallon down into its component measurements, namely cups, ounces, tablespoons and teaspoons, one can gain a rough approximation to one sixth of a gallon.

1 US Gallon = 16 cups or 128 oz.

1/2 US Gallon = 8 cups or 64 oz.

1/4 US Gallon = 4 cups or 32 oz.

1/6 US Gallon (approx.) = 21.333 oz. or 2.5 cups, 1 oz. and 2 teaspoons