Equivalents
Five gallons is equal to 10 half gallons. It is also equal to 20 quarts, 40 pints and 80 cups. Breaking it down further, five gallons is equal to 160 half cups and 320 quarter cups.
Conversions
The volume of a five-gallon bucket can be expressed in cubic inches or cubic feet. One U.S. liquid gallon is equal to 0.134 cubic feet, which means a five-gallon bucket is equal to 0.670 cubic feet. A five-gallon bucket is equal to 1,155 cubic inches.
Food Storage
Some people use five-gallon buckets for long-term food storage. Rice and beans are two food items that are usually at the top of most storage lists. A five-gallon bucket will hold approximately 37 lbs. of dry rice and 33.5 lbs. of dried beans.