You can change your Roblox username once every 30 days through your account settings
To change your username, log into your Roblox account on a web browser, go to your account settings, and select the option to change your username. Roblox allows one username change per 30 days. If you have never changed your username before, the first change is free. After that, each change costs 1,000 Robux, which is Roblox's in-game currency that you purchase with real money.
The process takes just a few minutes, and your new username becomes active when ready. However, there are rules about what usernames Roblox will accept — they cannot contain certain words, numbers-only names are not allowed, and the name must be between 3 and 20 characters long.
Key Takeaways
- You can change your username once every 30 days by going to account settings on the Roblox website.
- Your first username change is free; all changes after that cost 1,000 Robux.
- Usernames must be 3 to 20 characters, cannot be numbers only, and cannot contain words Roblox has blocked.
- Your new username takes effect right away, and other players will see it in games and on your profile.
Step-by-step process to change your username
Open a web browser and go to the Roblox website. Log in with your email and password. Once you are logged in, click on the gear icon in the top right corner of the page to open your account menu.
From the menu, select Settings. On the Settings page, click the Account tab on the left side. You will see a section labeled Username with your current name displayed. Click the button next to it that says Change.
A box will appear asking you to enter your new username. Type the name you want, then click Change Username to confirm. If the name is available and follows Roblox rules, it will be accepted when ready. If it is not available or breaks a rule, Roblox will tell you why and ask you to try a different name.
What usernames Roblox will and will not accept
Roblox blocks usernames that contain profanity, slurs, or references to real-world violence or illegal activity. The platform also does not allow usernames that are only numbers, usernames shorter than 3 characters, or usernames longer than 20 characters. Underscores and numbers mixed with letters are allowed.
If you try to change your username to something Roblox has flagged, the system will reject it and show you an error message. The message usually tells you why — for example, "This username contains blocked words" or "Usernames cannot be numbers only." You can then try a different name.
The cost and timing of username changes
Your first username change is free, no matter when you created your account. Every change after that costs 1,000 Robux. You can only change your username once every 30 days, so if you change it today, you cannot change it again until 30 days have passed.
The 30-day timer starts the moment you confirm your new username. If you change your mind right after making a change, you have to wait the full 30 days before you can try again. Roblox does not refund Robux spent on username changes, even if you change it back to your old name.
What happens to your old username after you change it
When you change your username, your old name becomes available for other players to use after a short delay. You cannot reserve or reclaim your old username later. If you think you might want to go back to it, you should wait before changing to something new.
Your account history, friends list, games you have created, and items in your inventory all stay with your account. Only the name displayed on your profile and in games changes. Other players will see your new username in games you play together and on your profile page.
Troubleshooting common username change problems
If you see a message saying you cannot change your username yet, you are still within the 30-day waiting period from your last change. Check the exact date and time of your last change in your account settings — the timer will show you when you can change again.
If a username you want is taken, try adding a number or underscore to make it unique. If Roblox rejects your username for containing blocked words, the system will not tell you exactly which word triggered the block, but you can try removing or replacing words one at a time until it accepts the name.
If you are having trouble accessing your account settings or the change username button is not appearing, try logging out completely and logging back in. Clear your browser cache if the page still does not load correctly. If the problem continues, you may need to use a different browser or device.
Frequently Asked Questions
Can I change my username more than once every 30 days?
No. Roblox enforces a strict 30-day waiting period between username changes. The timer resets each time you make a change, so you must wait the full 30 days before changing again, even if you only want to fix a typo.
What if someone else takes my old username after I change mine?
Your old username becomes available to other players after a short delay. You cannot reclaim it. If you think you might want to use it again, do not change your username. Once someone else takes it, it is gone.
Do I need Robux to change my username the first time?
No. Your first username change is always free. You only need to spend Robux on changes after that. If you have never changed your username before, you can do it at no cost.
Will my friends still be able to find me after I change my username?
Yes. Your friends list does not change, and your friends will see your new username in their friends list and in games. Your profile page will also show your new name, so friends can still find you the same way they did before.
Can I change my username on mobile or the Roblox app?
The easiest way is through the Roblox website on a computer, but you can also change your username through the mobile app. Open the app, tap your profile icon, go to Settings, select Account, and follow the same steps as on the website.