How much is $1 US dollar?

Excuse me, I'm somewhat new to the world of cryptocurrencies and finance, and I'm curious about a basic yet seemingly perplexing question. Could you possibly assist me in clarifying the value of $1 US dollar in relation to other currencies or assets, specifically in the context of today's market? I understand that the exchange rates can vary, but I'm just seeking a general understanding of how much one US dollar is worth in comparison. Your expertise in this field would be greatly appreciated.