3

I know the maximum transaction size is 500Kb.

I also know there is a maximum for sigop in a transaction (20,000?).

What I'm interested in is what is the maximum number of txouts you could include in a single transaction.

1 Answer 1

3

There is no practical maximum number of outputs in a transaction. The number of transactions can be up to 264-1, or 18446744073709551615. The transaction fee would be more than the total bitcoins to ever exist.

3
  • 3
    The maximum block size is 250,000 bytes (en.bitcoin.it/wiki/Transaction_fees). txin is approximately 148 bytes, a txout is about 34 bytes. Assuming 1 txin then max_txout ~= 7348. However, I believe that calculation is also limited by the max sigop limit.
    – user789235
    Commented Jan 28, 2014 at 20:50
  • 1
    @GregHewgill how did you come up with 2^64-1?
    – user11221
    Commented Oct 29, 2014 at 22:27
  • 2
    @GeorgeKimionis: The number of transactions is stored in the Bitcoin block as a Variable length integer, which has a maximum range of 2^64-1. Commented Oct 29, 2014 at 22:30

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.