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All calculators
- Bet CalculatorBet calculator for singles, doubles, trebles, accas and full-cover bets like the Yankee and Lucky 15. Each way, Rule 4, dead heats and non-runners included.
- Horse Racing Bet CalculatorHorse racing bet calculator for each way singles, accas, Yankees and Lucky 15s, with place terms, Rule 4 deductions, dead heats and non-runners.
- Single Double Treble CalculatorSingle double treble calculator: switch between singles, a double and a treble on the same picks and see the return, profit and odds for each.
- Odds Calculator & ConverterOdds calculator and converter for decimal, fractional and American odds. Type any price to see the others, the implied chance and what your bet pays.
- Single Bet CalculatorSingle bet calculator for win and each way singles. Enter the stake and odds, add Rule 4 or a dead heat if needed, and see the return and profit.
- Double Bet CalculatorDouble bet calculator: link two selections, see the combined odds, return and profit, and how a void leg or each way changes the payout.
- Parlay CalculatorParlay calculator for any number of legs: combined odds, payout and the real chance it lands. Free to use.
- Arbitrage (Surebet) CalculatorArbitrage calculator that tells you if two bookies' odds lock in a profit, and how to split the stake. Free to use, no sign-up.
- Free Bet CalculatorFree bet calculator: see what a stake-not-returned or stake-returned free bet is really worth, the best odds to use it at, and the lay stake to lock the value in.
- Treble Bet CalculatorTreble bet calculator for three-leg bets: combined odds, return and profit, plus each way trebles and what happens when one leg is void.
- Bonus Value (EV) CalculatorBonus value calculator that shows what a casino bonus is worth once wagering eats into it. Free, and honest about the bad ones.
- RTP & House Edge CalculatorRTP calculator that turns a slot's 96% into what a session actually costs you. Free, and slightly sobering.
- Free Spins Value CalculatorFree spins value calculator that turns "100 free spins" into an actual cash figure. Quick to fill in, and it counts the wagering.New
- Wagering Requirement CalculatorWagering requirement calculator: see how much you really need to bet to clear a casino bonus, how much is left and what it costs you.
- Slot Bankroll & Variance CalculatorSlot bankroll calculator: see how many spins your money lasts on average and the chance it runs out, from your bet size, the game's RTP and its volatility.
- Crazy Time CalculatorCrazy Time calculator: put your stakes on the eight spots and see the RTP of your mix, the average cost per spin and per hour, and how often you'll hit.
- Video Poker Strategy & Paytable CalculatorVideo poker calculator for Jacks or Better: compare paytables, see the return with perfect strategy, your cost per hour and the strategy chart that gets you there.
- Lottery Odds CalculatorLottery odds calculator for UK Lotto, EuroMillions, Thunderball, Irish Lotto, Lotto Max and Lotto 6/49. Odds for any match, over any number of draws.
- Lottery Number GeneratorLottery number generator for Lotto, EuroMillions, Thunderball, Set For Life, Powerball, Irish Lotto, Oz Lotto, Lotto Max and 6/49. Random lines in one tap.
- EuroMillions Number GeneratorEuroMillions number generator: a free Lucky Dip of five main numbers from 1 to 50 and two Lucky Stars from 1 to 12, for as many lines as you want.
- Set For Life Number GeneratorSet For Life number generator: random lines of five numbers from 1 to 47 and a Life Ball from 1 to 10. Free, quick and ready to copy or print.
- Thunderball Number GeneratorThunderball number generator: free random lines of five numbers from 1 to 39 plus a Thunderball from 1 to 14, with your own lucky numbers if you like.
- UK Lotto Number GeneratorUK Lotto number generator: random lines of six numbers from 1 to 59, free, with options to keep lucky numbers or avoid birthday-style picks.
- Irish Lotto Number GeneratorIrish Lotto number generator: free random lines of six numbers from 1 to 45, the format used since September 2026, with options for your own numbers.
- Powerball Number GeneratorPowerball number generator for South Africa, Australia and the UK: random main numbers and a Powerball in the right format for each game, free.
- Lotto Max & 6/49 Number GeneratorLotto Max and Lotto 6/49 number generator: random Quick Pick style lines, seven from 52 for Lotto Max and six from 49 for 6/49, free.
- Oz Lotto Number GeneratorOz Lotto number generator: free QuickPick style lines of seven numbers from 1 to 47, with options to keep your own numbers or spread lines out.
- Poker Odds CalculatorPoker odds calculator that answers the only question that matters: should you call? Free, no sign-up, real numbers in a second.
- Poker Hand RankingsPoker hand rankings from royal flush to high card, with example hands, the odds of making each one in Hold'em and five-card poker, a printable chart and a hand checker.
- Pot Odds CalculatorPot odds calculator for the moment you're staring at a bet. Free, quick, and it tells you straight: call or fold.
- ICM CalculatorICM calculator for poker tournaments: turn chip stacks and payouts into real money equity for up to 10 players, for deals and push/fold decisions.
- Omaha Odds CalculatorOmaha odds calculator for PLO and 5-card Omaha: your equity against random or known hands, on any board, with win, tie and made-hand odds.
- Poker Variance CalculatorPoker variance calculator: from your win rate and standard deviation, see the range of results over any number of hands, your chance of being down and risk of ruin.
- Roulette CalculatorRoulette calculator for every bet: payout, real chance of winning and house edge on European and American wheels, plus the cost of a session.
- Blackjack Strategy ChartBlackjack strategy chart that redraws itself for your table's rules: decks, soft 17, double after split, surrender. Tap any square to see what each move is worth.
- Martingale CalculatorMartingale calculator: see how many losses in a row your bankroll and the table limit can take, and how likely a bust is before you reach your goal.
- Blackjack CalculatorBlackjack calculator for any hand: tap your cards and the dealer's card to get the best move, what every option is worth and your chance of winning.
- Dice Probability CalculatorDice probability calculator for one to five dice: the chance of rolling an exact total, or that total and above or below. Handy for craps and sic bo.
- Roulette SimulatorRoulette simulator with play money: spin a single-zero or double-zero wheel, place real table bets, and test Martingale and other systems over thousands of spins.
- Blackjack TrainerFree blackjack trainer: play hand after hand and get told straight away if hit, stand, double, split or surrender was right, for the table rules you pick.
- Blackjack Card Counting TrainerBlackjack card counting trainer: free Hi-Lo running count drills at speeds up to casino pace, plus a true count quiz with decks left in the shoe.
- Blackjack Side Bets CalculatorBlackjack side bets calculator: exact house edge and hit chances for Perfect Pairs and 21+3 for any number of decks and the paytable at your table.
- French Roulette CalculatorFrench roulette calculator: payouts, chances and house edge for every bet, including Voisins, Tiers, Orphelins, Jeu Zéro, La Partage and En Prison.
- Random Number GeneratorRandom number generator: pick one number or up to 1,000 from any range, with or without repeats, sorted or not. Fair, instant and works on your phone.
- Spin the WheelSpin the wheel to pick a random name, option or winner. Type your own entries, remove winners as you go and spin as often as you like.
- Coin FlipCoin flip online: tap to toss a fair coin, or flip 100 at once and see the heads and tails count, the percentages and the longest run.
- Dice RollerDice roller for d4, d6, d8, d10, d12, d20 and d100: roll up to 20 dice with a modifier and see each die, the total and your earlier rolls.