How much is 1 BTC to STX?

Could you please clarify for me the current exchange rate between Bitcoin (BTC) and Stacks (STX)? I'm interested in knowing how much 1 BTC would equate to in STX tokens. Is there a reliable way to keep track of this conversion rate, given the volatile nature of the cryptocurrency market? Also, are there any fees or commissions involved when converting from one currency to the other? I'd appreciate any insights you can provide on this matter. Thank you in advance for your assistance.