Calculator
Kelly Criterion Calculator
Educational Kelly sizing for known-edge bets — with warnings for −EV games.
Kelly criterion (educational)
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%
Result
Full Kelly: 10.00%
Fractional Kelly: 5.00%
Most Originals are −EV. Kelly does not justify oversized bets on house-edged games.
Parent pages
Sibling calculators
- Crash Probability CalculatorEstimate survival probability and implied EV for Crash/Limbo-style targets.
- Dice Probability CalculatorConvert win chance to multiplier and inspect EV under a house edge.
- House Edge CalculatorConvert between RTP and house edge; estimate expected loss from handle.
- Expected Value CalculatorCompute EV for simple win/lose wagers from probability and payoff.
- RTP CalculatorTranslate RTP, edge, and wagered volume into expected return and loss.
- Wager CalculatorEstimate total handle from stake, rounds, and rounds-per-hour.
- Risk CalculatorExplore ruin-style intuition using stake fraction and losing-streak scenarios.
Related guides
- Bankroll ManagementPractical bankroll rules for fast Originals: session caps, stake fractions, and stop conditions that survive variance.
- Expected ValueEV as the probability-weighted average outcome — the bridge between RTP tables and real wagering decisions.
- Variance ExplainedWhy identical RTP games produce different session shapes, drawdowns, and emotional experiences.