Whoever asks "How to convert bnb to usdt?" is really asking what a coin costs and how long it takes to move. USDT transfer fees come in two layers: the network fee, paid in the coin of the network the transfer uses, and any withdrawal charge an exchange adds on top. On TRON the fee is covered by energy and bandwidth or by burning TRX, on BNB Smart Chain it is paid in BNB and on Ethereum in ETH gas. The cheapest way to send USDT is usually the network both sides support with the lowest total charge at the time.
How to convert BNB to USDT depends on where the BNB sits. On an exchange, a convert or trade screen sells BNB for USDT and shows the price and fee before confirming. From a wallet the owner controls, a decentralised exchange performs the swap on chain, with the network fee paid in BNB, and the price filled can differ from the quote through slippage. The USDT contract address should match the one published by official sources, because a name and symbol are easy to copy. Keeping a little BNB back covers later fees.
How to deposit bitcoin to an exchange starts on its deposit page: choose bitcoin and the network, copy the address shown for the account, send from the wallet on that same network and wait for the confirmations the exchange requires. How to withdraw USDT from an exchange needs more care, because a mistake moves the coins out for good. Paste the receiving address, pick the network the receiver actually supports, read the withdrawal fee and confirm with the two factor code. A small first withdrawal to any new address limits the cost of a mistyped detail.
Questions readers ask
Why match the USDT contract address before a swap?
Anyone can create a token with the same name and symbol, so only the contract address from official sources identifies the real one.
Where does an exchange show its withdrawal charge?
On the withdrawal screen, before the transfer is confirmed, next to the network chosen; reading it there avoids surprises.
How many confirmations does a deposit need?
The receiving platform sets the number, often between one and six for bitcoin, and usually states it on its deposit page.
How does replace by fee help a stuck bitcoin transaction?
A wallet that supports it can rebroadcast the payment with a higher fee, while a brand new separate payment risks paying twice.