Your Complete Free Betting Toolkit
Everything you need to analyze, track, and optimize bets in one core workflow, from odds conversion and EV checks to bankroll discipline and market validation.
Odds Converter
Very fast true-odds and payout conversion for line shopping across books.
LaunchEV Calculator
Calculate your edge percentage and decide whether the number is worth betting.
LaunchKelly Calculator
Use full, half, or quarter Kelly without over-betting your edge.
LaunchVig Calculator
Remove bookmaker margin from 2-way or 3-way markets and reveal fair no-vig probabilities.
LaunchArbitrage Calculator
Check for true two-way arbitrage and split your stake for guaranteed return.
LaunchHedging Calculator
Lock in profit on a moved number by calculating the opposite-side hedge stake.
LaunchParlay Calculator
Multiply decimal odds across multiple legs and calculate total return and profit.
LaunchBankroll Tracker
Track ROI, drawdown, and streaks without sending your record anywhere.
LaunchVenue Impact Calculator
Altitude, humidity, and travel notes translated into practical betting context.
LaunchCLV Tracker
See whether you actually beat the close instead of remembering only winners.
LaunchRecommended Tool Order
Use the calculators in the same order you would think through a real bet.
Bankroll Tracker
Log every bet locally on this device, then use ROI, drawdown, and streak context to stop calling random variance a strategy.
Venue Impact Calculator
Pick a host city to get a fast betting-context adjustment for totals, props, and late-match fatigue angles.
Lean under and fade sea-level teams late if the match stays level into the final 20 minutes.
CLV Tracker
Input your number and the close to see whether you actually beat the market instead of just remembering the wins.
Beat the close. Your number aged well.
Useful Tool Combos
Best for checking whether an opinion survives once the market is translated into break-even terms.
Use this when the bet is already positive EV and you need a disciplined stake size.
Good for World Cup spots where travel, altitude, or humidity shift the fair number before the market catches up.
Risk Controls
The tools help with math, not impulse control. Use fractional Kelly, keep a hard stop if your bankroll drops 20%, and treat record keeping as part of the bet rather than something optional after a bad day.
Open responsible gambling resourcesTools FAQ
What should I use first on Bettista tools?
Start with the odds converter, then move to EV, then Kelly. That keeps pricing, edge, and staking in the right order instead of guessing your way into oversized bets.
Does the bankroll tracker send my data anywhere?
No. The tracker and notebook export use localStorage only, so your entries stay on your device unless you export them yourself.
How should I treat venue impact adjustments?
Treat them as context, not a standalone model. Altitude, humidity, and travel are meant to sharpen totals and live-betting decisions, not replace team-quality analysis.