How many bottle caps in a 5 gallon jug?

The number of bottle caps that can fit in a 5-gallon jug depends on the size of the caps. Standard plastic bottle caps, like those from soda or water bottles, typically have a diameter of about 2.5 cm. A rough estimate is that a 5-gallon jug can hold approximately 5,000 to 6,000 standard bottle caps, but this can vary based on the packing and arrangement of the caps.