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, find the "Change Username" option, and enter your new name. Roblox charges 1,000 Robux (their in-game currency) for each username change. The change takes effect when ready, though other players may see a brief delay before the new name appears in their friend lists.

You can only change your username once per 30-day period. If you change it and then want to change it again, you must wait 30 days from the date of your most recent change. There is no way to speed up this waiting period.

Key Takeaways

  • Username changes cost 1,000 Robux and can be done once every 30 days through your account settings on the Roblox website.
  • Your old username becomes available for other players to claim after you change it, so you cannot reclaim it later.
  • The change is when ready for your account, but other players' games and friend lists may take a few hours to show your new name.
  • If you have a pending username change, you must wait for the 30-day cooldown to expire before you can change it again.

Where to find the username change option

Open Roblox in a web browser and log in to your account. Click the gear icon in the top right corner of the page, or go directly to the account settings menu. Look for a section called "Account Info" or "Account Settings" — the exact label depends on whether you are on the main Roblox site or the settings page.

Once you are in account settings, scroll down until you see "Change Username" or "Username". Click that option. You will see a text box where you can type your new username, along with a notice showing the 1,000 Robux cost and the 30-day waiting period.

What usernames Roblox will and will not allow

Roblox has rules about which names you can choose. Your username must be between 3 and 20 characters long. It can contain letters, numbers, and underscores, but not spaces or special characters like hyphens, periods, or symbols. Usernames are not case-sensitive — "MyName" and "myname" are treated as the same username.

Roblox will reject a name if it contains profanity, slurs, or references to illegal activity. The system also blocks names that are too similar to existing usernames (for example, if someone already has "Player123", you cannot use "Player1234"). If your chosen name is rejected, you will see an error message explaining why, and you can try a different name without losing your Robux.

How to know if you have enough Robux

Before you attempt a username change, check your Robux balance. Click your avatar icon in the top right corner and look for a number showing how many Robux you own. If the number is less than 1,000, you do not have enough to change your username.

You can buy Robux through the Roblox website using real money, or you can earn Robux through certain games or by selling items in the Roblox catalog if you have a Premium membership. The cost to buy 1,000 Robux varies depending on which package you purchase, but it typically costs between $10 and $15 USD.

What happens to your old username

Once you change your username, your old name is released back into the pool of available usernames. Other players can claim it when ready. You cannot reclaim your old username later, even if you wait months or years. If you think you might want to use that name again, do not change your username.

Players who had you on their friend list will see your new username after a short delay, usually within a few hours. Your game history, inventory, and all your Robux remain attached to your account — only the display name changes.

Troubleshooting a failed username change

If you try to change your username and see an error message, the most common reasons are: you do not have 1,000 Robux, your chosen name is already taken or violates Roblox rules, or you are still within your 30-day waiting period from a previous change. The error message will usually tell you which of these is the problem.

If the error says "You must wait X days before changing your username again," count the days from your last successful change. You cannot change it until that 30-day period is over. If you believe you have waited long enough but the system still blocks you, try logging out and back in, or try again in a few hours — sometimes the system takes time to update.

Changing your username on mobile

You can change your username on the Roblox mobile app, but the process is slightly different. Open the app, tap your avatar icon at the bottom right, then tap the gear icon to open settings. Scroll to "Account Info" and look for "Change Username". The cost and 30-day cooldown are the same as on the website.

Some players report that the mobile app occasionally has delays showing the username change option. If you cannot find it in the app, log into Roblox through a mobile web browser instead — the website version works on phones and tablets.

Frequently Asked Questions

Can I change my username if I have not played in a long time?

Yes. As long as your account exists and you can log in, you can change your username. The account does not need to be active or have recent playtime. You still need 1,000 Robux and must wait 30 days between changes.

What if someone else took my old username after I changed mine?

Once you change your username, you cannot reclaim the old one. If another player claimed it, you would need to choose a different name. Plan ahead if you think you might want to use your old username again in the future.

Do I lose my games, items, or friends when I change my username?

No. Your inventory, game progress, Robux balance, and friend list all stay with your account. Only the display name changes. Friends may see a brief delay before your new name appears in their lists.

Can I change my username more than once in 30 days?

No. Roblox enforces a strict 30-day cooldown between username changes. You must wait the full 30 days from your last change before you can change it again, and there is no way to bypass this waiting period.

What if Roblox rejects my username choice?

If your chosen name is rejected, you will see an error explaining why — usually because it is already taken, contains banned words, or breaks Roblox rules. You can try a different name without losing your Robux. The system will not charge you until you successfully confirm a new name.