This is where your bitcoin is sent in exchange for the amount of money you insert into the Bitcoin ATM. You can also choose a reliable bitcoin wallet here to generate a public address and keep your Bitcoin safe. A fast way to calculate how much Bitcoin is worth in dollars is to ask your mobile device’s digital assistant. Now you know how to use a Bitcoin ATM to buy and sell bitcoin! After your receipt is scanned, it should then give you your money. Next, insert the amount of fiat money you want to exchange for bitcoin,.