Kelly Criterion Calculator

Find your optimal bet size. Enter your journal stats — win rate, average win, and average loss.

Win Rate %

Avg Win (DKK)

Avg Loss (DKK)

Win rate = winning trades ÷ total trades. Avg win/loss from your journal.

NordTraders pre-calculates R:R on every trade idea. Plug your win rate from the journal to find your Kelly fraction.