Sport Sharps
Betting Calculators & Tools

Betting Tools

Interactive tools to calculate your edge, size your bets, convert odds, and track your results.

Kelly Calculator Available

Kelly Criterion Bet Sizer

Size your bets mathematically. Input your edge and odds, get the optimal stake as a percentage of bankroll. Full Kelly, fractional Kelly, and risk warnings built in.

ENGINE: Kelly Criterion f* = (bp − q) / b
Odds Converter Available

Universal Odds Format Converter

Convert between Decimal, American, and Fractional odds instantly. Includes a two-way market calculator to strip the vig and reveal true probabilities.

ENGINE: Format Translation + No-Vig Model
EV Calculator Available

Expected Value & Variance Simulator

Calculate expected value per bet and over 100 rounds. Deconstruct house edge with real-time sliders for probability, payout, and stake.

ENGINE: EV = P(Win) × Payout × Bet − P(Loss) × Bet
Bankroll Tracker Available

Client-Side Bankroll & Bet Logger

Log every bet, track your bankroll over time, and see win rate, ROI, streaks, and P/L. All data saved locally in your browser — zero server transmission.

ENGINE: localStorage Persistence + Canvas Chart
Privacy & Security

All calculations run in your browser

All mathematical calculations, probability models, and bankroll data on sportssharps.com execute exclusively in your local browser. No seeds, parameters, bets, or session data are transmitted to any server.

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