Hello, all cryptocurrency exchangers charge a fee for their services. It can be in two formats: a service fee and the difference between the purchase and sale prices of assets (as in conventional currency exchangers). Often such services will indicate that they do not charge a service fee at all, but this may mean that they make more money on the price of crypto sales. Therefore, before carrying out the operation, you should pay attention to the amount that you will receive after the operation and compare it with other offers. It is better to choose a service that has a simple and understandable exchange calculator on its website. For example, on the website
https://www.trustchange.com/ you can specify the currency for which you want to conduct the transaction and the asset you plan to buy. After this, the rate and the amount you will receive taking into account all commissions will be displayed. This also takes into account the blockchain fee, which is not affected by the exchanger, but which cannot be avoided.