Dutching Calculator - Odds changed since you placed your last bet?
american odds of 300 = 300/100 = 3/1. Negative odds - Minus 100 divided by the american odds e.g. american odds of -300 = -100/-300 = 1/3. Add 1 to the fractional representation e.g. a fractional value of 3/1 = (3/1) + 1 = 4.
Positive american odds - The fractional value multiplied by 100 e.g. a fractional odds of 3/1 bet new sign up offers bookies = (3/1) * 100 = 300. Negative american odds - Negative 100 divided by the fractional odds e.g. a fractional value of 1/5 = -100 / (1/5) = -500. Subtract 1 from the decimal representation e.g. Use this calculator to determine the stakes necessary to guarantee a fixed return regardless of the outcome. Punters comfortable with exchange betting often use this approach as odds fluctuate more frequently.
AceOdds provides the most comprehensive and reliable suite of bet calculators, with over 50,000 bets calculated daily. Trusted by independent bookmakers and punters to work out returns, you can be sure that the calculations are accurate. PL's most negative fanbases Who tops the list? bet365 Edit Bet Feature Use the bet365 Edit Bet feature to amend your bets Monreal on Arsenal's UCL final chances Can they win the big one? Our OddsMatcher is a core matched betting tool designed to help you compare bookmaker odds with betting exchange odds quickly and accurately. It’s suitable for both beginners and experienced bettors who want to reduce qualifying losses, maximise free bet value, and place matched bets with confidence. AiProfit’s matched betting OddsMatcher scans bookmakers and betting exchanges in real time to find closely matched odds for upcoming events. By creating a free AiProfit account, you can access the OddsMatcher and start identifying efficient matched betting opportunities straight away. An OddsMatcher is a matched betting tool that compares bookmaker odds with betting exchange odds to find the closest available matches. This allows you to place a back bet with a bookmaker and a lay bet on an exchange with minimal loss, helping you lock in consistent results from betting offers. Our OddsMatcher tool operates through a simple and efficient process. Input Your Bet Details: Select the event, market, bet type (e.g., win or each way), and stake amount. Scan Bookmakers and Exchanges: The OddsMatcher scans supported bookmakers and betting exchanges to find the closest available odds. Display Matched Bets: It displays matched bets and prioritises selections with the closest odds match. Calculate Stakes: The OddsMatcher works alongside our calculator to help you calculate accurate back and lay stakes. Place Your Bets: Place your back bet with the bookmaker and your lay bet on the exchange shown. Matched Betting Calculator: Use our Matched Betting Calculator to calculate lay stakes, liability, and profit for qualifying bets and free bets with accuracy. Odds Converter: The Odds Converter allows you to convert odds between fractional and decimal formats, making it easier to compare prices across bookmakers and exchanges.
| Tool | Moneyline | Point Spread | Over/Under | Props | Futures |
|---|---|---|---|---|---|
| Oddschecker | Yes | Yes | Yes | Yes | Yes |
| OddsPortal | Yes | Yes | Yes | Limited | Yes |
| The Action Network | Yes | Yes | Yes | Yes | No |
Our goal at AiProfit is to provide reliable matched betting tools that help you place bets efficiently and accurately.
| Comparison Tool | Number of Bookmakers | Notable Exclusions | Regional Focus |
|---|---|---|---|
| OddsPortal | 200+ | BetOnline (US) | Global |
| BetBrain | 90+ | Local Asian Books | Europe |
| Oddschecker | 50+ | Pinnacle (some regions) | UK, Australia |
With access to the OddsMatcher and supporting tools, you can manage the full matched betting process in one place.
There are tools like the matched betting calculator available, joining a whole list of betting calculators on the site. Regardless of how much sports betting you have done in the past or what your level or experience is, the calculators on offer from OddsMonkey are easy to use and will always provide accurate results. These betting calculators and other tools are designed to be usable for anyone and everyone. 18+ Wagering and T&Cs apply Play Responsibly Commercial Content 18+ Wagering and T&Cs apply Play Responsibly Commercial Content If you're looking to sign up for a new betting account, don't forget to use the latest bet365 bonus code. bet365 accepts new customers from most countries and offers a sports sign up bonus when local law permits.
There are 3 methods of stating odds that most bookmakers and websites support. Implied Probability is also useful when evaluating a bet or checking how likely an outcome is. Used primarily in the UK and Ireland, fractions quote the potential profit should the bet succeed relative to the stake. For example, if £5 is bet at odds of 2/1 the potential profit is £10 (£5 * 2) and the total returned is £15 (£10 plus the £5 stake). Decimals quote the potential return should the bet succeed relative to the stake. The OddsMatcher compares bookmaker odds with betting exchange odds to help you find close matches for matched betting, making it easier to place accurate back and lay bets. Choose selections where the bookmaker odds and exchange odds are closely matched.
a decimal value of 3 = 3 - 1 = 2 which is commonly expressed as 2/1. Positive american odds - (The decimal value minus one) multiplied by 100 e.g. Negative american odds - Negative 100 divided by (the decimal odds minus one) e.g. Betting Calculator - Enter your odds and stake to calculate bet returns for all types of sports wagers. Supports all major formats including decimal, fraction and american. Closer matches typically reduce qualifying losses and make matched betting more efficient. Always double-check the market, selection, and odds before placing your bets. Select an event, market, and bet type in the OddsMatcher. Use the calculator to determine your back and lay stakes.
a probability of 10% = (100 / (10 / 100)) - 100 = 900.Negative odds - The probability divided by (1 minus (the probability divided by 100)) then multiply by -1 to convert into a negative e.g. a probability of 60% = (60 / (1 - (60/100))) * -1 = -150. Positive odds - (100 divided by (the percentage divided by 100)) minus 100 e.g. a probability of 10% = (100 / (10 / 100)) - 100 = 900. Negative odds - The probability divided by (1 minus (the probability divided by 100)) then multiply by -1 to convert into a negative e.g.
Positive odds - 1 plus (the american odds divided by 100) e.g. american odds of 300 = 1 + (300/100) = 4. Negative odds - 1 minus (100 divided by the american odds) e.g. american odds of -300 = 1 - (100/-300) = 1.333. Positive odds - The american odds divided by 100 e.g. Place your back bet with the bookmaker and your lay bet on the exchange. An OddsMatcher saves time and reduces errors by showing you close bookmaker and exchange matches in one place, helping you complete matched betting offers faster and more consistently. Premium access unlocks additional features that make matched betting faster and easier, such as enhanced filters, expanded coverage, and more efficient workflows. If you want to do matched betting efficiently, an OddsMatcher is one of the most useful tools you can use. It helps you find close matches and supports accurate stake calculations for both beginners and experienced bettors. We are all constantly chasing the best football betting odds — but it is not just about settling for one bookie that has a good record of offering fair odds for your favorite team. The real edge comes from having an up-to-date, minute-by-minute comparison across multiple trusted bookies.
Professional punters do this all day, running accounts with a dozen operators. However, most casual bettors simply do not have the time to run such a sophisticated operation. That’s where our automated football odds comparison tool comes in. It delivers the best and most accurate betting odds around the clock, drawn from leading bookmakers and updated in real time.
For example, if £5 is bet at odds of 3 the total returned is £15 (£5 * 3) the potential profit is £10 (£5 * 3 minus the £5 stake). Positive figures: The odds state the winnings on a £100 bet e.g. american odds of 110 would win £110 on a £100 bet. Negative figures: The odds state how much must be bet to win £100 profit e.g. american odds of -120 would win £100 on a £120 bet.
Odds correlate to probability e.g a 3/1 bet is expected to win one in every 4 attempts. Decimal - 1 divided by the decimal odds, multiplied by 100 to give a percentage e.g. Fraction - 1 divided by (the fractional odds plus 1), multiplied by 100 to give a percentage. fractional odds of 3/1 = (1 / ((3/1) + 1)) * 100 = 25%. American: Positive odds - 100 divided by (the american odds plus 100), multiplied by 100 to give a percentage e.g. Whether it’s the Premier League, Champions League, or international fixtures, you’ll instantly see the best odds for every match — all in one place. Alongside regular odds, we also display enhanced odds boosts, special promotions, and exclusive market offers from the best sports betting sites. So if you’re serious about getting maximum value from your bets, take a seat, grab your phone, and explore the latest football odds comparison right here.
american odds of 150 = (100 / (150 + 100)) * 100 = 40%.Negative odds - Firstly multiply the american odds by -1 and use the positive value in the following formula: american odds divided by (the american odds plus 100), multiplied by 100 to give a percentage e.g. american odds of -300 = (300/(300+100)) * 100 = 75%. Positive odds - 100 divided by (the american odds plus 100), multiplied by 100 to give a percentage e.g. american odds of 150 = (100 / (150 + 100)) * 100 = 40%. Negative odds - Firstly multiply the american odds by -1 and use the positive value in the following formula: american odds divided by (the american odds plus 100), multiplied by 100 to give a percentage e.g.
Decimal - 1 divided by (the percentage divided by 100) e.g. a probability of 50% = 1 / (50 / 100) = 2. Fraction - (1 divided by (the percentage divided by 100)) minus 1 e.g. a probability of 25% = (1 / (25 / 100)) - 1 = 3 = 3/1. American: Positive odds - (100 divided by (the percentage divided by 100)) minus 100 e.g. Pre-match and live odds can shift every few seconds — and by the time you’ve checked five or ten different betting sites, the market may already have moved.
| Tool | Live Odds Update | Pre-Match Update |
|---|---|---|
| LiveScore Bet | Every 10 seconds | Every 2 minutes |
| FlashScore | Every 15 seconds | Every 5 minutes |
| BetExplorer | Every 30 seconds | Every 10 minutes |
| SofaScore | Every 20 seconds | Every 3 minutes |
