How many Robux is $1?

I'm curious to know, how many Robux does one dollar translate to? As a cryptocurrency enthusiast and finance professional, I'm always interested in understanding the exchange rates and conversion values between different currencies, especially when it involves virtual currencies like Robux. Understanding this conversion rate could help me make informed decisions when it comes to purchasing items or investing in Roblox's virtual economy. I'd appreciate if you could provide me with a current or estimated figure for the conversion of $1 to Robux.