The Odds Calculator
Calculator
How to Use Odds Calculator?
The odds calculator features several fields that may appear complex at first glance. Here’s a brief explanation of what each section signifies:
- Bet Amount ($): This field is designated for entering the amount you wish to wager. Although it’s displayed in dollars, it can be understood in any form of currency or unit.
- To Win ($): This area showcases your potential earnings. It represents your total profit from the wager, calculated by subtracting your initial bet from your total returns.
- Payouts ($): The payout calculator indicates the complete sum you will receive if your bet is successful, which includes both your initial bet and the winnings.
- American Odds: Also known as US or moneyline odds American odds are calculated based on a wager of $100, represented as either positive (+) or negative (-) values. Positive odds indicate the profit to be gained from a $100 bet, while negative odds represent how much you need to bet in order to achieve a profit of $100.
- Decimal Odds: True to their name, decimal odds are expressed as decimal figures. Commonly referred to as European odds, they represent the total payout potential for each wager. For instance, odds of 2.50 imply a payout of $250 for every $100 bet, a format widely used across Europe and the globe.
- Fractional Odds: This format displays profits in relation to the stake. For example, odds of 5/1 suggest a win of $500 for each $100 wagered. Fractional odds are predominantly utilized in the UK.
- Implied Odds: This section helps convert odds into a probability percentage. The implied odds calculator translates odds into a percentage format. For instance, odds of +150 suggest a 40% chance of your bet being successful.
Comprehending the Mathematics Behind the Betting Calculator
In this segment, we delve into the underlying formulas that drive our sports betting odds calculator. Although it’s user-friendly, the calculator employs various computational techniques to ensure accurate results.
Our tool functions as a betting odds converter, facilitating the transformation of American odds into decimal and fractional formats. It also calculates implied probabilities and payouts using specific formulas. Let’s first look at how to change odds formats before examining implied probabilities.
Converting American Odds
American to Decimal

- FORMULA:1 + (AMERICAN ODDS / 100)
- EXAMPLE: +250 1 + (250 / 100) = 3.50
- FORMULA:1 – (100 / AMERICAN ODDS)
- EXAMPLE: -160 1 – (100 / -160) = 1.63
American to Fractional

- FORMULA:AMERICAN ODDS / 100
- EXAMPLE: +400 400 / 100 = 4/1
- FORMULA:-100 / AMERICAN ODDS
- EXAMPLE: -200 -100 / -200 = 1/2
Converting Decimal Odds
Decimal to Fractional

Decimal to American

- FORMULA:(DECIMAL ODDS – 1) X 100
- EXAMPLE: 4.50 (4.50 – 1) X 100 = 350
- FORMULA:-100 / (DECIMAL ODDS – 1)
- EXAMPLE: 1.25 -100 / (1.25 – 1) = -400
Converting Fractional Odds
Fractional to Decimal

Decimal to American

- FORMULA:(DECIMAL ODDS – 1) X 100
- EXAMPLE: 4.50 (4.50 – 1) X 100 = 350
- FORMULA:-100 / (DECIMAL ODDS – 1)
- EXAMPLE: 1.25 -100 / (1.25 – 1) = -400
Converting Fractional Odds
Fractional to Decimal

Fractional to American

- FORMULA:FRACTIONAL ODDS X 100
- EXAMPLE: 6/1 6/1 × 100 = 600
- FORMULA:-100 / FRACTIONAL ODDS
- EXAMPLE: 1/3 -100 / 1/3 = -300
Transforming Odds into Implied Probability
Besides changing odds between formats, our sports betting calculator is equipped to convert odds into probability. The implied odds calculator utilizes the following equations to express odds as a percentage:

- FORMULA:100 / (AMERICAN ODDS + 100) X 100 = PERCENTAGE
- FORMULA:AMERICAN ODDS / (AMERICAN ODDS + 100) X 100 = PERCENTAGE
More on Betting Odds
Let's be honest—odds are a crucial element of sports betting. They dictate potential payouts and reflect the likelihood of an event's occurrence, guiding bettors in making informed wagering decisions.
If you are interested in diving deeper into this subject, our betting odds guide section contains more information. We provide explanations on the mechanics of odds, guidance on how to interpret them, the various odds types, and additional insights.
We recommend several reputable online sports betting sites that offer competitive odds on a range of markets, leagues, and events. Additionally, they feature attractive bonuses, efficient banking options, and excellent customer support.
Here are our suggested betting sites that offer the best odds:
Casinos | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() |
Bonus | 125% up to $2,625 | 100% up to $1,000 | 100% up to $500 | 50% up to $1,000 | 150% up to $225 | 50% up to $200 | 500% Up to $1,000 |
Number of Deposit Methods | 7 | 10 | 8 | 7 | 6 | 13 | 3 |
Number of Withdrawal Methods | 7 | 9 | 5 | 11 | 5 | 2 | 4 |
Live Betting | Yes | Yes | Yes | Yes | Yes | Yes | No |
Read Review | Full Review | Full Review | Full Review | Full Review | Full Review | Full Review | Full Review |
Additional Sports Betting Resources from The Sports Geek
We have developed a variety of resources aimed at empowering sports bettors to optimize their finances. Explore our top pages:
Best Online Sportsbooks in the USA Read through our reviews and uncover top-rated sports betting platforms available for US players.
Sports Betting Strategy Guide Gain invaluable tips and strategies to elevate your sports betting experience.
March Madness Betting Strategy Discover the best tactics for betting on March Madness.
Prop Betting Strategy Guide Get familiar with prop betting and gather tips for successful prop bets.
Information and Strategy for Parlay Betting Elevate your parlay betting game with our detailed guide on parlays.
Understanding the Moneyline in Sports Betting Get acquainted with the fundamentals of moneyline betting and leverage expert strategies.
Point Spread Betting Strategy Learn how to navigate point spread bets and how to determine point spread payouts.
Sweetheart Teasers Understand the advantages of merging several point spread bets into attractive teasers.
Comprehensive Strategy Guide for Futures Betting Reveal the secrets to successful futures betting using NFL examples.
Sports Betting Systems Explore betting systems and how they can bolster your bet structuring.
Units in Sports Betting Utilize betting units to manage your bankroll effectively and maintain oversight of your wagers.
Hedging Strategies Discover how to stake on opposing outcomes to secure guaranteed profits.
Final Tips for Using Odds Calculator
Using a betting odds calculator is quite simple and enhances the overall betting experience. Enter your wager amount in dollars or any currency. The 'To Win' section illustrates your expected profit, while 'Payouts' indicates the total return, combining your original stake with your winnings. American odds, which are shown as positive or negative figures, reflect potential earnings on a $100 wager and the necessary stake to achieve a $100 profit. Decimal odds, which are popular worldwide, denote the total payout, indicating the overall returns for each betting amount.
