Inserting cash into a machine and getting bitcoins in a few seconds is a very simple process. This feature eliminates the headache of exchanging currencies while traveling abroad. And as mentioned earlier, the total number of ATMs around the world are very less and some of them can only be either used to buy bitcoins or sell bitcoins because the two-way type Bitcoin ATM is even rarer to find. Share via. Howdy, Welcome to the popular cryptocurrency blog CoinSutra. Facebook Twitter LinkedIn. Enter the amount of Bitcoin you wish to sell for cash.