How much is 1 million Robux in US dollars?

Could you please elaborate on the current exchange rate between Robux, a virtual currency primarily used in the Roblox platform, and the United States dollar? I'm particularly interested in understanding the approximate value of 1 million Robux in terms of US dollars. With the constantly fluctuating market values of virtual currencies, it's crucial to have a grasp of the current exchange rates to make informed decisions. Could you provide a rough estimate or point me to a reliable source where I can find the most up-to-date conversion rate? Thank you for your assistance.