How many Swiss francs does it cost to buy 1 US dollar?

Excuse me, could you please clarify the current exchange rate for me? I'm interested in knowing how many Swiss francs are required to purchase 1 US dollar. I understand that exchange rates can fluctuate, so I'm looking for the most up-to-date information possible. Could you provide me with the current rate, or perhaps direct me to a reliable source where I can find it? Thank you in advance for your assistance.