On your profile page, look at the URL in your browser's address bar. The numbers at the end of the URL are your Roblox ID. Method 2: Checking your Roblox ID in the Roblox mobile app Follow these ...

Look at the URL in your browser's address bar. Your Roblox ID is the string of numbers at the end of the URL after "users/." Alternatively, you can also find your Roblox ID in-game: Join a game in ...