The basic process: go to settings, pay the fee, confirm the change

To change your Roblox username, you log into your account, go to your account settings, find the username field, enter a new name, and pay the one-time fee. Roblox charges 1,000 Robux (their in-game currency) for each username change. The new name takes effect when ready after payment goes through, and you can change it again after 30 days.

The whole process takes about two minutes if you already have Robux in your account. If you don't have enough Robux, you'll need to buy some first, which adds a few extra steps but is straightforward.

Key Takeaways

  • Username changes cost 1,000 Robux and take effect right away, but you can only change again after 30 days have passed.
  • You change your username through account settings on the Roblox website, not through the game itself or the mobile app.
  • If you don't have 1,000 Robux, you can buy Robux directly from Roblox using real money or a gift card.
  • Your old username becomes available for other players to claim once you change it, so you cannot reserve or reclaim it later.

Step-by-step: changing your username on the website

Open a web browser and go to roblox.com. Log in with your email and password. In the top right corner, click the gear icon or your profile picture to open the menu, then select Settings.

On the Settings page, click the Account tab on the left side. You'll see a field labeled Username with your current name displayed. Click the pencil icon or the field itself to edit it. Type your new username into the box — it must be between 3 and 20 characters, and can only contain letters, numbers, and underscores. Roblox will tell you right away if the name is already taken or breaks the rules.

Once you've entered a name that works, click the button to confirm the change. Roblox will ask you to pay 1,000 Robux. If you have enough Robux in your account, click to pay and the change is done. Your new username is live when ready.

What to do if you don't have enough Robux

If you see a message saying you don't have enough Robux, you need to buy some. On the same Settings page, look for a link or button that says Buy Robux or Get Robux. Click it and you'll be taken to the Robux purchase page.

Roblox sells Robux in bundles: 400 Robux, 800 Robux, 1,700 Robux, and larger amounts. The smallest bundle that covers a username change is 800 Robux, though you'll get extra left over. You can pay with a credit card, debit card, PayPal, or a Roblox gift card if you have one. After your purchase goes through, go back to Settings and try the username change again.

The 30-day waiting period between changes

Once you change your username, you cannot change it again for 30 days. This timer starts the moment your payment goes through, not when you first tried to change it. If you try to change your username before 30 days have passed, Roblox will show you a message telling you when you'll be able to change it next.

This rule exists to prevent people from constantly switching names and confusing other players. It also protects against account theft — if someone gains access to your account, they can only damage your username once per month.

What happens to your old username

When you change your username, your old name does not stay reserved for you. It becomes available for any other Roblox player to claim when ready. This means you cannot get your old username back by changing your name again later, unless the new person who took it decides to change theirs and you manage to claim it before someone else does.

If you're worried about losing a username you like, think carefully before changing it. Some players keep their original username for years specifically to prevent someone else from taking it. If you change your mind about a new username within a few days, you could change back to it — but only if no one else has claimed it in the meantime.

Username rules and restrictions

Roblox has rules about what usernames are allowed. Your new username must be 3 to 20 characters long and can only contain letters (A–Z, a–z), numbers (0–9), and underscores (_). Spaces, special characters like hyphens or periods, and emoji are not allowed.

Roblox also blocks usernames that contain slurs, hateful language, or references to illegal activity. If you try to use a name that breaks these rules, you'll get an error message and won't be able to proceed. The system checks this automatically, so you'll know right away if a name is blocked.

Changing your username on mobile

You cannot change your username through the Roblox mobile app on iPhone or Android. You have to use a web browser on a phone or computer. Open a browser, go to roblox.com, log in, and follow the same steps as above. The process is identical — the only difference is that the screen is smaller.

If you try to find a username setting in the mobile app, you won't find one. This is intentional on Roblox's part, likely to prevent accidental changes on small screens. Always use a browser to change your username.

Frequently Asked Questions

Can I change my username for free?

No. Roblox charges 1,000 Robux for every username change, with no exceptions. This is a one-time fee per change, not a subscription. If you change your username again 30 days later, you'll pay another 1,000 Robux.

What if someone else takes my old username?

Once you change your username, the old one is gone. You cannot reserve it or get it back. If another player claims it, you would have to wait for them to change their username and then claim it before anyone else does — which is unlikely. Choose your new username carefully.

Do my friends still see me after I change my username?

Yes. Your friends list and all your game progress stay the same. Your friends will see your new username in their friends list and in games. There is no disruption to your account or friendships — only your display name changes.

How long does it take for the username change to show up?

Your new username appears when ready after payment goes through. You don't have to wait for an email confirmation or for the change to process overnight. Refresh the page and you'll see your new name right away.

Can I change my username back to what it was before?

Only if no one else has claimed it. Your old username becomes available the moment you change it, so if another player takes it, you cannot get it back unless they change their username later. If it's still unclaimed, you can change back to it after 30 days, but you'll have to pay another 1,000 Robux.