Roblox had about 330 million registered accounts in 2017. That figure is commonly cited as the rough total number of user accounts by the end of that year, though exact official year-end counts were not always published publicly.

Quick note

The number refers to registered accounts , not active players. Roblox’s account total grew very fast in that period, so different sources may round it slightly differently depending on the date they used.

Why it matters

  • Registered accounts = every account ever created.
  • Active users = people actually playing in a given month or day.
  • So a big account total does not mean that many people were online at once.

Bottom line

For 2017, the best short answer is around 330 million Roblox accounts.