Coinstar is a company that boasts coin-counting kiosks where a person can go to cash in their coins for dollar bills. These kiosks, about the size of a vending machine, are located in drug stores, banks, grocery stores, and other retail locations. Coinstar locations can be found in the United States, Puerto Rico, Ireland, Canada and the United Kingdom. With an average transaction amount of $38, Coinstar has processed over 350 billion coins in its almost 20 years of operation, with its largest single transaction being $13,000 worth of pennies. Users have the option to cash out, donate their money to charity or put it onto a gift card.