How much is SX to USD?

Could you please clarify what you mean by "SX"? Cryptocurrencies have a wide variety of abbreviations and symbols, and without further context, it's difficult to determine which one you're referring to. Assuming "SX" refers to a specific cryptocurrency, the value of SX to USD would depend on the current market conditions and exchange rates. You could use a cryptocurrency exchange or price tracking website to find the most up-to-date information on the current value of SX in USD. Is there a specific cryptocurrency you're interested in, or are you just asking about the general process of converting cryptocurrencies to USD?