Your Roblox username and your Xbox gamertag are separate accounts
When you play Roblox on Xbox, you are signing in with your Xbox account, but your Roblox username is its own thing. Changing your Xbox gamertag does not change your Roblox name. If you want a different name in Roblox, you change it through the Roblox website or app — not through Xbox settings.
Roblox lets you change your username once every 30 days. The first change costs 1,000 Robux (Roblox's in-game currency). After that, each change costs 1,000 Robux. If you have never changed your username before, you get one free change.
Key Takeaways
- Your Roblox username is separate from your Xbox gamertag and must be changed through Roblox, not Xbox settings.
- You can change your Roblox username once every 30 days, and it costs 1,000 Robux each time after your first free change.
- To change your username, go to the Roblox website, sign in with your Xbox account, and visit your account settings.
- The name change takes effect when ready, but other players may not see it right away due to caching delays.
- You cannot change your username back to a name you used before, and you cannot use a name that is already taken.
How to change your username on the Roblox website
Go to the Roblox website on a computer or mobile browser and sign in with your Xbox account. Click the gear icon in the top right corner to open account settings. Select "Account Info" from the left menu, then look for the "Username" field. Click the pencil icon next to your current username to edit it.
Type your new username. Roblox will tell you right away if the name is already taken or contains words it does not allow. Once you see a green checkmark, the name is available. Click "Change Username" to confirm. If this is not your first change, you will be asked to spend 1,000 Robux. Confirm the purchase, and your new username is active when ready.
What happens if you do not have enough Robux
If you want to change your username but do not have 1,000 Robux, you need to buy Robux through the Roblox website or through the Xbox store. On Xbox, you can purchase Robux directly from the Roblox game hub. On the website, click the Robux icon in the top right and select "Buy Robux" to see your options.
Robux purchased on Xbox and Robux purchased on the website are the same currency and appear in the same account, so it does not matter which way you buy them. Prices vary depending on how many Robux you purchase at once.
Rules for choosing a new username
Your new username must be between 3 and 20 characters long. You can use letters, numbers, and underscores. Roblox blocks usernames that contain profanity, impersonation attempts, or references to real-world violence or illegal activity. If you try a name and it is rejected, try removing numbers or changing the spelling slightly.
You cannot use a username you have had before, even if you changed away from it years ago. This is permanent — Roblox does not let you recycle old names. If someone else has taken the name you want, you will need to choose something different.
Why other players might still see your old name
After you change your username, it takes effect in your account right away. However, other players in games you are already in may continue to see your old name for a few minutes. This is because Roblox caches player names to keep games running smoothly. Leave the game and rejoin, and other players will see your new name.
Your old username will not appear anywhere new. Any games you join after the change will show your new name to everyone. If you are worried about the delay, straightforward leave and rejoin the game you are in.
Changing your username on the Roblox mobile app
You can also change your username through the Roblox mobile app on your phone. Open the app, tap the three horizontal lines in the bottom right corner, and tap your username at the top. Select "Account Settings," then tap "Username." Tap the pencil icon to edit, type your new name, and confirm the change. The process is the same as on the website.
Whether you change your username on the website, the app, or through Xbox, the change happens across all platforms at once. You do not need to change it separately on each device.
What to do if your username change does not go through
If you click "Change Username" and nothing happens, check that you have enough Robux in your account. If you do, try signing out and signing back in. Sometimes a browser cache issue can prevent the change from processing. Clear your browser cookies and try again.
If the problem continues, visit the Roblox Help Center and search for "username change." Roblox support can see whether your change went through and help you troubleshoot if something went wrong. They can also tell you when you will be able to change your username again if you have already made a change recently.
Frequently Asked Questions
Can I change my Roblox username from the Xbox app itself?
No. You must change your Roblox username through the Roblox website or Roblox mobile app. Xbox settings only control your Xbox gamertag, which is separate from your Roblox name. Sign into Roblox with your Xbox account and go to account settings to make the change.
What if I change my mind right after changing my username?
You cannot change your username again for 30 days. Roblox enforces a 30-day waiting period between changes to prevent spam and account takeovers. If you made a mistake, you will need to wait the full 30 days before you can change it again.
Will my Robux balance change if I change my username?
No. Your Robux, inventory, and game progress stay exactly the same when you change your username. Only your display name changes. All your games, items, and currency remain in your account.
Can I use special characters or spaces in my new username?
No. Roblox usernames can only contain letters (A–Z), numbers (0–9), and underscores (_). You cannot use spaces, hyphens, periods, or other special characters. If you try, Roblox will reject the name and ask you to choose a different one.
Does changing my Roblox username affect my Xbox friends list?
No. Your Xbox friends list is tied to your Xbox gamertag, not your Roblox username. Changing your Roblox name does not affect who can see you or message you on Xbox. Your Xbox friends will still see your Xbox gamertag in the Xbox app.