Code tool

Knockout Round Count

Enter a participant count to calculate single-elimination rounds, byes, and matches. This is a planning calculation, not a prediction or betting tool.

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A QUICK WALKTHROUGH

How to use this tool

  1. Enter 2–4096 participants.
  2. Choose Calculate.
  3. Read rounds, byes, and matches.

Bracket rule

Rounds = ceil(log2(n)); byes = next power of two − n; matches = n − 1. No bracket schedule is generated.

GOOD TO KNOW

Common questions

How are byes counted?

Byes fill the next power-of-two bracket.

Does this predict winners?

No. It only counts bracket structure.