How much does it cost to swap ETH to BTC?

Excuse me, I have a question regarding cryptocurrency exchange. Could you please enlighten me on the cost involved in swapping Ethereum (ETH) to Bitcoin (BTC)? I'm curious to know the approximate fees or expenses that I might encounter during this process. Could you provide me with a ballpark figure or a range of possible costs? It would be greatly appreciated if you could shed some light on this matter. Thank you in advance for your assistance.