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Betting & Odds Tools

Odds, payouts, edges and bankroll math. 20 free tools, no sign-up.

Betting Odds ConverterConvert American (moneyline), decimal, fractional and implied probability odds between all four formats instantly in your browser.Implied Probability CalculatorTurn American, decimal or fractional odds into the break even win probability the price is offering.Parlay CalculatorCombine up to eight legs in American or decimal odds to get the total parlay odds, payout and combined win probability.Kelly Criterion CalculatorFind the optimal bet size as a percentage of your bankroll from your win probability and the decimal or American odds.Betting Expected Value CalculatorEnter your true win probability, the odds and your stake to see the EV in dollars and whether the bet is +EV.Arbitrage Betting CalculatorEnter two opposing odds to check if a sure bet exists, then get the optimal stake split and guaranteed profit.Hedge Bet CalculatorWork out the exact stake to place on the other side to lock in a guaranteed profit or cut your loss on an open wager.Moneyline Payout CalculatorEnter American moneyline odds and your stake to see the exact profit and total return on a winning bet.Over Under Payout CalculatorEnter a total, the sides odds and your stake to see if a game total goes over or under and what your bet pays.Betting Bankroll Management CalculatorSet your bankroll and unit percentage to size flat bets and see how many units survive a losing streak.Vig CalculatorEnter both sides of a two way market to find the sportsbook vig, the total overround and each sides fair no vig probability.No Vig Fair Odds CalculatorStrip the sportsbook margin from a two way market to get each sides true fair odds and no vig win probability.Sportsbook Hold Percentage CalculatorEnter both sides of a market to find the sportsbook theoretical hold, the share of every dollar wagered the book keeps.Break Even Win Rate CalculatorFind the win percentage you need to break even at any odds, and see your ROI at a target win rate.Round Robin Bet CalculatorTurn your picks into every parlay combination of a chosen size, with total number of bets, cost and max payout.Teaser Bet CalculatorMove the spread or total in your favor across multiple legs, apply the teaser odds and see the adjusted lines and payout.Each Way Bet CalculatorEnter fractional odds, place terms and stake to see the win and place returns of an each way horse racing or golf bet.Poker Pot Odds CalculatorEnter the pot size and the bet to call to get your pot odds as a ratio and the break even equity you need to call.Poker Outs and Hand Odds CalculatorEnter your number of outs to get the odds of hitting your draw on the turn, the river and by the river in Texas Holdem.Betting Unit Size CalculatorConvert a bankroll and unit percentage into a dollar unit, then price any bet in units to keep staking consistent.

Free betting math tools: odds converter, implied probability, parlay, Kelly criterion, expected value, arbitrage, hedge and poker pot odds calculators. No sign-up. All 20 tools are free, run entirely in your browser, and need no sign-up.

Frequently asked questions

Are these betting & odds tools free?

Yes. Every betting & odds tool on yourhack.ai is completely free, with no sign-up and no usage limits.

Do these betting & odds tools work on mobile?

Yes. They run in any modern web browser on phone, tablet or desktop. There is nothing to install.

Is my data private?

Yes. These tools run entirely in your browser, so nothing you enter is uploaded to a server.

How many betting & odds tools are there?

There are currently 20 free betting & odds tools here, and we add more regularly.

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