BETTING ODDS CALCULATOR / PAYOUT CALCULATOR

What Are Betting Odds?

Betting odds show both the potential payout of a wager and the implied probability of an outcome.

For example, American odds of +200 mean a $100 winning bet would generate $200 profit, giving you a $300 total payout including your original stake.

Odds can be displayed in three common formats:

• American odds – most common at US sportsbooks
• Decimal odds – commonly used in Europe and Canada
• Fractional odds – commonly used in the UK

Our calculator converts between all three formats automatically.

Understanding the Different Odds Types

You may come across odds displayed in several formats. These are simply different ways of showing odds, which can differ depending on where you are.

The three most commonly used odds types are:

1. American Odds: Used mainly across the U.S., American odds will either start with a ‘+’ or ‘-’ symbol, indicating the favorite and the underdog. Here, every +100 gives you the value of your stake back as winnings. For example, if you bet $10 at odds of +300, you'd get $40 back if it won ($30 + your stake).
   
   
2. Decimal Odds: Used mainly throughout Europe (excluding the UK) decimal odds are often seen as the simplest way to display odds. Here, odds of 1.0 gives you the value of your stake back as winnings. For example, a $10 bet at decimal odds of 3.00 would return $30 in total: $20 profit plus your $10 stake.
   
   
3. Fractional Odds: Used mainly in the UK, fractional odds display odds as a fraction (unsurprisingly). Here, odds of 1/1 gives you the value of your stake back as winnings. For example, if you bet $10 at odds of 3/1 you'd take home $40 if you won ($30 + your stake).

Note: The implied probability is just the probability percentage linked with the odds. The higher the implied probability, the shorter the sportsbook odds.

Odds Conversion Table

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What Our Experts Say

"Understanding betting odds is one of the most underrated skills for bettors. Once you grasp how different formats convert and how they link to implied probability, you’re no longer guessing—you’re analyzing. That’s the first real step toward betting like a pro."

- Chris Allen, Sports & Matched Betting Expert at ProfitDuel

What Is a Betting Odds Calculator?

A betting odds calculator, also known as a bet payout calculator, shows how much a sports bet could return based on your stake and odds.

ProfitDuel's calculator also acts as an odds converter, allowing you to instantly compare American, decimal and fractional odds and see the implied probability behind the price.

It calculates:

• Your original stake
• Potential profit
• Total payout
• American odds
• Decimal odds
• Fractional odds
• Implied probability
  
  

How Do I Use a Betting Odds Calculator?

Using a betting odds calculator to calculate bet payout is simple, it takes just three steps:

1. Enter Your Bet Amount: This is how much you're intending to place on your bet, A.K.A your stake.
   
   
2. Enter Your Bet's Odds: This is the odds attached to your bet. If you're in the U.S., this will most likely be in an American odds format (e.g. +100).
   
   
3. View Your Payout: The calculator will instantly calculate the potential payout you could earn from placing your bet at those odds. It will also show you what the equivalent odds are across American odds, decimal odds and fractional odds formats, as well as the implied probability.

How Is Bet Payout Calculated?

The easiest way to calculate a sports betting payout is using decimal odds:

Total Payout = Stake × Decimal Odds

Profit = Total Payout − Stake

For example, a $50 bet at decimal odds of 2.50 would return:

$50 × 2.50 = $125 total payout

Your profit would therefore be:

$125 − $50 = $75 profit

Our calculator performs this automatically and also converts American and fractional odds into their equivalent values.

What’s the Difference Between Profit and Payout?

Profit is the amount you win above your original stake.

Payout, or total return, includes both your profit and the stake returned to you.

For example, if you bet $100 at +150 odds, your potential profit is $150 and your total payout is $250.

What Are the Benefits of a Betting Odds Calculator?

Betting odds calculators can offer bettors a wide range of benefits. Five of the most powerful include:

• Accurate Payout Estimation: A betting payout calculator helps ensure precise total payout calculation when wagering, using bet amount and odds. This reduces the risk of miscalculating potential returns on a wager.
  
  
• Time Efficiency: Instantly calculates your potential winnings without manually performing complex math, saving time and enabling you to focus on other aspects of your betting strategy.
  
  
• Simplifies Odds Conversion: Converts various types of betting odds, such as fractional, decimal and American, making it easier to understand potential returns in different formats.
  
  
• Informed Betting Decisions: By showing the exact payout of wagers, the calculator helps you gauge the potential risk versus reward of each bet, leading to smarter and more strategic betting choices.
  
  
• Reduces Human Error: Eliminates the possibility of manual errors in calculating payouts, ensuring accuracy and preventing costly mistakes that could affect your betting outcomes.

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What Our Experts Say

"An odds calculator is like your personal betting assistant—it won’t pick winners for you, but it ensures every calculation and conversion is spot on. The smartest bettors aren’t guessing at payouts—they’re verifying them before every wager."

- Ryan Bornemann, Sports & Casino Betting Expert at ProfitDuel

Are There Any Drawbacks of a Betting Odds Calculator?

Though an odds calculator offers a variety of powerful benefits, it's not an all-in-one solution to betting success. As such, there are a few important risks you should consider when using one:

• Changing Odds: Sportsbooks can change their moneyline odds on events in seconds, meaning that what you type into the calculator one minute may not be up-to-date the next. This is why you should always double check your odds.
  
  
• Manual Process: Though an odds calculator instantly calculates potential payout, this still leaves you to go back to the sportsbook, find the event, check your odds and place the bet yourself.
  
  
• Doesn't Guarantee Wins: Whilst an odds payout calculator can improve your betting strategy, it cannot guarantee you win your bets - the usual risks attached to typical sports betting apply.
  
  

📊 What The Data Says

According to a 2025 internal ProfitDuel member survey, users who combined odds calculators with advanced tools like the Dutch Matcher reported an average 42% improvement in ROI on qualifying bets within the first 30 days.

- ProfitDuel

Are There Any Betting Tools Better Than Odds Calculators?

While betting calculators like odds calculators, hedge calculators and free bet conversion calculators can be useful tools for fast-tracking bet planning, they aren't all-in-one tools that can guarantee you betting profits.

However, you might be surprised to hear there are two game changing tools out there that can make a huge difference. Introducing the Dutch Matcher and Dutch Matcher Calculator - the ultimate matched betting tools.

Want to Go Beyond Basic Odds Calculations?

Betting odds calculators are useful for checking individual wagers, but ProfitDuel also offers tools for analysing sportsbook prices, finding arbitrage opportunities, identifying +EV bets and converting sportsbook promos.

Explore all ProfitDuel Sports Betting Tools to see what’s available.

Frequently Asked Questions

How do I calculate my betting payout?
Multiply your stake by the decimal odds to calculate your total payout. Your profit is the total payout minus your original stake.

What does +200 mean in betting?
American odds of +200 mean a $100 winning bet would generate $200 profit, giving you a total payout of $300.

What does -110 mean in betting?
Odds of -110 mean you would need to stake $110 to make $100 profit. Your total payout would be $210 if the bet wins.

Does betting payout include my stake?
Yes. Total payout normally refers to your winnings plus the return of your original stake.

Can I convert American odds to decimal odds?
Yes. ProfitDuel's betting odds calculator automatically converts American, decimal and fractional odds.

What is implied probability?
Implied probability converts sportsbook odds into the percentage chance represented by those odds. It does not necessarily represent the true probability of the outcome.

Get Started Making Money Smart Betting

Odds calculators can be a handy intro to betting tools, but if you're looking to make a serious side income betting smart, the matched betting technique is unrivalled.

Matched betting is a proven process that helps users around the globe turn sportsbook promos into profits using a few handy tools and guides.

At ProfitDuel, we're the masters of matched betting, having helped over 500,000 members across the U.S. and Europe make profits using our easy-to-use software, beginner walkthrough guides and friendly one-to-one support.

What is ProfitDuel?

ProfitDuel’s free betting calculators make it easy to execute strategies like matched betting, arbitrage, and EV betting with precision. By simplifying complex calculations into instant results, our tools help you make fast, confident, profit-driven decisions every time you place a bet.

Trusted by over 500,000 users across the USA and UK, ProfitDuel is the smart betting toolkit built to help you maximize profit and minimize risk. We equip our members with real-time data, cutting-edge tools and expert support to help our members make profit through strategy, not luck.

Centered around proven techniques like matched betting, arbitrage betting, and value betting (EV betting), our betting calculators, betting tools and live market data make it easy to spot hidden edges and turn them into profit. From converting sportsbook promos and casino bonuses into cash to maximizing your long-term winnings with EV software, we’ve got you covered.

Whether you’re an experienced bettor sharpening your edge or a beginner looking for a profitable side hustle, ProfitDuel gives you the software, systems and expert support to boost your monthly earnings with confidence. Because the smartest way to bet isn’t gambling — it’s strategy.