Your wallet app will allow you to scan a QR code once you've added your bank details, or you can send Bitcoin directly to the wallet address you specified. The payout amount will be transferred to the bank account you specified once they have received your coins.

Here are the simple steps to convert Bitcoin to USDT in blockchain

Step1:-  You can exchange cryptocurrencies by selecting Bitcoin in the exchange window, then enter the amount you want to exchange.

Step2:- Choose whether you want to exchange crypto at fixed or floating rates.

Step3:-  You will need to enter the wallet address that you are currently using. Once you add the address then move to the next step.

Step4:-  The address of your wallet and the exact amount of cryptocurrency you must send will be given to you. We would appreciate it if you did it in one transaction.

Now your transaction has been done and your BTC has been converted into USDT. Now you simply withdraw that amount into your bank account if you want.