Bet Profit Calculator
Use our free Bet Profit Calculator to instantly see total return, net profit and implied probability from your stake and decimal odds.
Betting Calculators
Every free calculator on BetToolKit, grouped by what you want to work out.
Pick a calculator by task: check a bet's return, convert odds, lock in an arbitrage, size your stake or test a casino bonus. All of them are free to use, with no account.
Profit & Odds
Parlay Calculator
Free parlay calculator for accumulator bets. Calculate total odds, potential payout & profit for multi-leg parlays and system bets with decimal odds.
Odds Converter
Instantly convert betting odds between decimal, fractional and American formats. See implied probability and potential returns.
Expected Value Calculator
Use our free Expected Value Calculator to determine if a bet has positive EV. Enter odds and your estimated probability to find value bets.
Each Way Calculator
Calculate each way betting returns with our free calculator. Compare win and place bets, see profit for all scenarios. Works with 1/4 and 1/5 odds.
Cash Out Calculator
Calculate the fair cash out value of your bet. See profit if you cash out vs. let it ride based on current odds movement.
Arbitrage & Hedging
Surebet Calculator
Free Surebet Calculator: split your stake across two outcomes and see arb %, return and profit on every outcome for sports arbitrage.
Hedge Calculator
Compute the optimal hedge stake and your profit on every outcome instantly. Lock in returns or cut losses on two-outcome markets.
Lay Bet Calculator
Use our Lay Bet Calculator to derive the optimal lay stake on exchanges, including commission. Balance outcomes and lock in profits.
Matched Betting Calculator
Calculate optimal lay stakes for matched betting. Turn bookmaker bonuses into low-risk profit with our free calculator.
Middle Bet Calculator
Evaluate any middling opportunity: see the middle range and compare profits when the middle hits or only one side wins.
Asian Handicap Calculator
Calculate Asian Handicap bet outcomes with our free AH calculator. See returns for whole, half, and quarter lines with interactive scoreline grid.
Casino & Slots
Slot Session Calculator
Estimate bust risk, ROI and optimal stake for your slot session. Choose a slot, set bankroll and spins; we simulate thousands using RTP and max win.
Wagering Calculator
Use our free calculator to see how much you must wager to clear a casino bonus. Supports bonus, deposit, or combined rollover with RTP loss estimates.
Blackjack Side Bet Analyzer
Analyze blackjack side bets with RTP, house edge, EV, variance, and bankroll impact to see which bets offer value and which to avoid.
Baccarat Edge Calculator
Calculate baccarat house edge and commission impact for Player, Banker, Tie and pair bets. Compare standard vs EZ Baccarat variants.
Roulette Probability
Calculate roulette probabilities, payouts and house edge for all bet types. Compare European, American and French wheel variants.
Craps Odds Calculator
Calculate craps odds, probabilities, house edge, and expected value for all 20 bet types including pass line, place, and proposition bets.
Strategy & Analysis
Yield & ROI Calculator
Calculate expected profit, ROI, yield, and variance from edge, odds, bets per day, and bankroll with our value betting yield & ROI calculator.
Betting Strategy Simulator
Advanced Monte Carlo simulator comparing Martingale, Kelly, flat betting and more. Analyze risk of ruin, expected profit and optimal bankroll management.
Kelly Criterion Calculator
Free Kelly Criterion calculator. Find your optimal stake from odds, probability, and bankroll. Compare full, half, and quarter Kelly side-by-side.
Dutching Calculator
Free dutching calculator that splits your stake across selections so every winner pays the same profit. Ideal for horse racing and football.
Overround Calculator
Free overround calculator: calculate bookmaker margin, see implied/true probabilities and quickly spot value betting opportunities.
Poker Odds Calculator
Calculate poker hand equity, outs, and pot odds with our free Texas Hold'em calculator. Monte Carlo simulation for accurate results.