Other than limitations in growth of the UTXO set with regard to the block size, is there a cap either on the number of UTXOs or storage limit of the UTXO set in the Bitcoin protocol or Bitcoin Core?

1 Answer 1


There is no such limit. Growth of the UTXO set is somewhat regulated by the fact that creating UTXOs takes up blockchain space, which may cost fees to use. But there are no size limits as such.

  • Cant upvote but thank you! (new account). I assume Murch has done calculations of "if we maximized block space to create new UTXOs for new BTC holders, how many blocks would it take for everyone on earth to have a UTXO" so Ill look for that stack exchange post next. Oct 3, 2022 at 15:02
  • I don't think I've done that calculation, no. ;)
    – Murch
    Oct 3, 2022 at 15:17
  • 1
    @quantumtightening: You may be interested in this answer I just wrote: bitcoin.stackexchange.com/a/115451/5406
    – Murch
    Oct 4, 2022 at 20:29

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.