Fees are a crucial factor when trading in cryptocurrencies. There are trading fees, withdrawal fees, and network fees. For example, when transferring a currency like ETH or USDT from the Binance platform to an external wallet, fees will vary depending on the network (ERC20 is more expensive than TRC20). Additionally, trading fees differ from one platform to another, and some offer discounts when using their currency, such as BNB on Binance. It is wise to calculate all these costs before executing a trade, especially if you are trading in small amounts. Understanding these fees protects you from unexpected losses when trading pairs like BTC/USDT.